{"product_id":"zigbee-door-window-sensor-snzb-04pr2","title":"SONOFF SenseGuard DW Gen2 — Zigbee Door\/Window Sensor (SNZB-04PR2)","description":"\u003cstyle\u003e.pd *{box-sizing:border-box}.pd{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1a1a2e;line-height:1.65;max-width:820px}.pd h1,.pd h2,.pd h3,.pd h4{line-height:1.3;margin-top:0}.pd h1{font-size:26px;font-weight:800;margin-bottom:6px}.pd h2{font-size:22px;font-weight:800;margin-bottom:8px;padding-top:32px;border-top:2px solid #f0f0f0}.pd h2:first-of-type{border-top:none;padding-top:0}.pd p{margin:0 0 12px;font-size:15px;color:#444}.pd ul{margin:0 0 16px;padding-left:0;list-style:none}.pd ul li{padding:5px 0 5px 24px;position:relative;font-size:14px;color:#444}.pd ul li::before{content:'✓';position:absolute;left:0;color:#059669;font-weight:700}.pd-trust{display:flex;gap:12px;margin:16px 0 24px;flex-wrap:wrap}.pd-trust-item{flex:1;min-width:130px;background:#f8f9fa;border-radius:10px;padding:14px 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0}@media(max-width:560px){.pd-products{grid-template-columns:1fr}}.pd-pcard{background:#fff;border:1.5px solid #e5e7eb;border-radius:10px;padding:18px;text-decoration:none;color:inherit;display:block;transition:border-color .2s,box-shadow .2s}.pd-pcard:hover{border-color:#dc2626;box-shadow:0 4px 16px rgba(0,0,0,.08)}.pd-pcard h4{font-size:14px;font-weight:700;color:#1a1a2e;margin:0 0 4px}.pd-pcard .pc-type{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:#dc2626;margin-bottom:6px}.pd-pcard p{font-size:12px;color:#666;margin:0;line-height:1.5}.pd-pcard .pc-link{display:inline-block;margin-top:10px;font-size:12px;font-weight:700;color:#1e40af}.pd-tip{background:#ecfdf5;border-left:4px solid #059669;border-radius:0 8px 8px 0;padding:12px 16px;margin:14px 0;font-size:13px;color:#065f46}.pd-warn{background:#fffbeb;border-left:4px solid #d97706;border-radius:0 8px 8px 0;padding:12px 16px;margin:14px 0;font-size:13px;color:#92400e}.pd-specs{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px}.pd-specs tr:nth-child(even){background:#f8f9fa}.pd-specs td{padding:11px 16px;border-bottom:1px solid #f0f0f0}.pd-specs td:first-child{font-weight:700;color:#1a1a2e;width:42%}.pd-specs td:last-child{color:#555}.pd-faq{margin:10px 0}.pd-faq details{background:#fff;border:1px solid #e5e7eb;border-radius:8px;margin-bottom:8px;overflow:hidden}.pd-faq summary{padding:14px 18px;font-weight:700;font-size:14px;color:#1a1a2e;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}.pd-faq summary::-webkit-details-marker{display:none}.pd-faq summary::after{content:'▼';font-size:12px;color:#999;transition:transform .2s}.pd-faq details[open] summary::after{transform:rotate(180deg)}.pd-faq details[open] summary{border-bottom:1px solid #f0f0f0}.pd-faq .faq-body{padding:14px 18px;font-size:14px;color:#555;line-height:1.65}.pd-support{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:14px 0}@media(max-width:600px){.pd-support{grid-template-columns:1fr}}.pd-support-card{background:#f8f9fa;border-radius:10px;padding:20px 16px;text-align:center}.pd-support-card .si{font-size:28px;margin-bottom:6px}.pd-support-card h4{font-size:15px;font-weight:700;color:#1a1a2e;margin:0 0 6px}.pd-support-card p{font-size:13px;color:#555;margin:0;line-height:1.5}.pd-support-card a{color:#1e40af;font-weight:600;text-decoration:none}.pd-cta{background:#1a1a2e;border-radius:12px;padding:32px 24px;text-align:center;color:#fff;margin:24px 0}.pd-cta h3{font-size:22px;font-weight:800;margin:0 0 6px;color:#fff}.pd-cta p{font-size:14px;opacity:.7;margin:0 0 4px;color:#fff}.pd-upgrade{background:linear-gradient(135deg,#1e40af 0%,#7c3aed 100%);border-radius:12px;padding:24px;margin:18px 0;text-align:center;color:#fff}.pd-upgrade h4{font-size:16px;font-weight:800;margin:0 0 6px;color:#fff}.pd-upgrade p{font-size:13px;margin:0 0 14px;opacity:.85;color:#fff}.pd-upgrade a{display:inline-block;background:#fff;color:#1e40af;padding:10px 28px;border-radius:8px;font-weight:700;font-size:14px;text-decoration:none;transition:transform .2s,box-shadow .2s}.pd-upgrade a:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.2)}\u003c\/style\u003e\u003cdiv class=\"pd\"\u003e\n\u003ch1\u003e🚪 SONOFF SenseGuard DW Gen2 — Zigbee Door \u0026amp; Window Sensor (SNZB-04PR2)\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eGen2 upgrade\u003c\/strong\u003e of SONOFF's popular door\/window sensor. The SNZB-04PR2 features built-in \u003cstrong\u003etamper detection\u003c\/strong\u003e, standard \u003cstrong\u003eAAA batteries\u003c\/strong\u003e (no more expensive coin cells), a \u003cstrong\u003e30mm detection range\u003c\/strong\u003e, and a slimmer profile at just \u003cstrong\u003e45.1g\u003c\/strong\u003e. Instant push notifications via eWeLink when any door, window, gate, or drawer is opened. Create powerful security automations — trigger cameras, sirens, lights, and HVAC automatically. Works with eWeLink, Alexa, Google Home, and Home Assistant. MPN: SNZB-04PR2.\u003c\/p\u003e\n\u003cdiv class=\"pd-trust\"\u003e\n\u003cdiv class=\"pd-trust-item\"\u003e\n\u003cdiv class=\"ico\"\u003e🚚\u003c\/div\u003e\n\u003cdiv class=\"lbl\"\u003eFree Delivery\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003eOrders over R2,500\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-trust-item\"\u003e\n\u003cdiv class=\"ico\"\u003e🇿🇦\u003c\/div\u003e\n\u003cdiv class=\"lbl\"\u003eLocal Stock\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003eShips from Gauteng\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-trust-item\"\u003e\n\u003cdiv class=\"ico\"\u003e🔋\u003c\/div\u003e\n\u003cdiv class=\"lbl\"\u003e3 Year Battery\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003eStandard AAA × 2\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-trust-item\"\u003e\n\u003cdiv class=\"ico\"\u003e📡\u003c\/div\u003e\n\u003cdiv class=\"lbl\"\u003eZigbee 3.0\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003eTamper Detection\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-warn\"\u003e⚠️ \u003cstrong\u003eZigbee hub required.\u003c\/strong\u003e This is a Zigbee sensor — it does not connect to WiFi directly. You need a compatible Zigbee 3.0 hub such as the ZB Bridge-P, NSPanel Pro, ZB Bridge Ultra, iHost, or ZBDongle-E. See Compatible Hubs section below.\u003c\/div\u003e\n\u003cdiv class=\"pd-info\"\u003e\n\u003ch3\u003e🔄 Looking for the original SNZB-04P?\u003c\/h3\u003e\n\u003cp\u003eThe SNZB-04P uses a CR2477 coin cell and has a 22mm detection range. If you prefer the original model or need a more budget-friendly option:\u003c\/p\u003e\n\u003cp style=\"margin-top:10px;\"\u003e\u003ca href=\"\/products\/zigbee-door-window-sensor-snzb-04p\" style=\"display:inline-block;background:#1e40af;color:#fff;padding:10px 24px;border-radius:8px;font-weight:700;font-size:14px;text-decoration:none;\"\u003eView SNZB-04P → R 245.00\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e⚡ Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTamper Alert Detection\u003c\/strong\u003e — built-in tamper sensor detects forced removal or damage; sends instant app alerts and can trigger smart scenes like gateway sound alarms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30mm Detection Range\u003c\/strong\u003e — works with wide gaps when mounted horizontally; 15mm range in vertical mount position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard AAA Batteries\u003c\/strong\u003e — powered by 2× AAA (LR03) batteries, no expensive coin cells; up to 3 years of operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstant Open\/Close Notifications\u003c\/strong\u003e — magnetic reed switch triggers within milliseconds; push notification via eWeLink app\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen\/Close History Log\u003c\/strong\u003e — eWeLink records every event with timestamps; review when doors were opened and closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Slim \u0026amp; Lightweight\u003c\/strong\u003e — only 45.1g including batteries; compact 90×26×13.5mm transmitter blends into any door or window frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Mounting\u003c\/strong\u003e — horizontal and vertical install options with detachable magnet for tight or unconventional spots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Scenes \u0026amp; Automations\u003c\/strong\u003e — trigger lights, cameras, alarms, HVAC, or notifications when a door opens; create \"if door open for X minutes → send alert\" automations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Saving\u003c\/strong\u003e — auto-off thermostat or lights when a door or window stays open too long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZigbee 3.0 (TLSR8656F512ET32)\u003c\/strong\u003e — reliable, low-power mesh networking; acts as a Zigbee end device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Assistant Support\u003c\/strong\u003e — works with ZHA and Zigbee2MQTT for full local control; exposes contact, battery, and tamper entities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🏠 Perfect For\u003c\/h2\u003e\n\u003cdiv class=\"pd-feat-grid\"\u003e\n\u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e🚪\u003c\/div\u003e\n\u003ch4\u003eFront Door \u0026amp; Entry Points\u003c\/h4\u003e\n\u003cp\u003eGet notified every time your front door, back door, or garage side door is opened. Review the history log to see who came and went throughout the day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e🪟\u003c\/div\u003e\n\u003ch4\u003eWindow Security\u003c\/h4\u003e\n\u003cp\u003eMount on windows throughout the house. Create a scene: \"If any window opens after 10 PM → turn on alarm siren and send push notification.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e💡\u003c\/div\u003e\n\u003ch4\u003eAutomatic Lights \u0026amp; HVAC\u003c\/h4\u003e\n\u003cp\u003eOpen the pantry door → lights turn on. Leave a window open too long → thermostat turns off to save energy. Hands-free automation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e🧒\u003c\/div\u003e\n\u003ch4\u003eSafety Gates, Cabinets \u0026amp; More\u003c\/h4\u003e\n\u003cp\u003eMonitor baby gates, pet doors, medicine cabinets, gun safes, fridges, or drawers. The tamper alert adds an extra layer if someone tries to remove the sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-tip\"\u003e💡 \u003cstrong\u003eSecurity Tip:\u003c\/strong\u003e Combine multiple SNZB-04PR2 sensors on all entry points with a SNZB-03P Motion Sensor to build a complete Zigbee security zone. Use eWeLink smart scenes to trigger camera recording, siren alerts, and phone notifications automatically.\u003c\/div\u003e\n\u003ch2\u003e🔧 Three Ways to Install\u003c\/h2\u003e\n\u003cdiv class=\"pd-feat-grid\"\u003e\n\u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e↔️\u003c\/div\u003e\n\u003ch4\u003eHorizontal Mount (30mm range)\u003c\/h4\u003e\n\u003cp\u003eStandard side-by-side placement on the door frame and door. Works great with wide gaps. 3M adhesive included — peel and stick.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e↕️\u003c\/div\u003e\n\u003ch4\u003eVertical Mount (15mm range)\u003c\/h4\u003e\n\u003cp\u003eIdeal for doors and frames with height differences. Magnet sits on top of the door, sensor on the frame above.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-feat\" style=\"margin:14px 0;\"\u003e\n\u003cdiv class=\"fi\"\u003e🧲\u003c\/div\u003e\n\u003ch4\u003eDetachable Magnet\u003c\/h4\u003e\n\u003cp\u003eThe magnet can be removed from its holder and placed separately — perfect for tight or unconventional spots where a standard mount won't fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📡 Compatible Zigbee Hubs\u003c\/h2\u003e\n\u003cp\u003eThe SNZB-04PR2 requires a Zigbee 3.0 hub. Here are the hubs we stock:\u003c\/p\u003e\n\u003cdiv class=\"pd-products\"\u003e\n\u003ca href=\"\/products\/sonoff-zb-bridge-p\" class=\"pd-pcard\"\u003e\u003cdiv class=\"pc-type\"\u003eZigbee Gateway · eWeLink · Budget\u003c\/div\u003e\n\u003ch4\u003eSONOFF ZB Bridge-P\u003c\/h4\u003e\n\u003cp\u003eAffordable Zigbee-to-WiFi gateway. Supports up to 128 Zigbee devices via eWeLink. The easiest way to get started with Zigbee sensors.\u003c\/p\u003e\n\u003cspan class=\"pc-link\"\u003eView Product →\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/sonoff-nspanel-pro-smart-home-control-panel\" class=\"pd-pcard\"\u003e\u003cdiv class=\"pc-type\"\u003eControl Panel · Zigbee Hub · Touchscreen\u003c\/div\u003e\n\u003ch4\u003eSONOFF NSPanel Pro\u003c\/h4\u003e\n\u003cp\u003eWall-mounted touchscreen with built-in Zigbee hub, intercom, and dashboard. Manage all your Zigbee sensors from one screen.\u003c\/p\u003e\n\u003cspan class=\"pc-link\"\u003eView Product →\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/sonoff-zbdongle-max\" class=\"pd-pcard\"\u003e\u003cdiv class=\"pc-type\"\u003eUSB Dongle · Long Range · Zigbee 3.0\u003c\/div\u003e\n\u003ch4\u003eSONOFF ZBDongle-Max\u003c\/h4\u003e\n\u003cp\u003eLong-range USB Zigbee coordinator with external antenna and 2.5× range. Ideal for large homes or outdoor Zigbee networks with Home Assistant.\u003c\/p\u003e\n\u003cspan class=\"pc-link\"\u003eView Product →\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/sonoff-zigbee-e\" class=\"pd-pcard\"\u003e\u003cdiv class=\"pc-type\"\u003eUSB Dongle · Home Assistant · Local\u003c\/div\u003e\n\u003ch4\u003eSONOFF ZBDongle-E\u003c\/h4\u003e\n\u003cp\u003eUSB Zigbee coordinator for Home Assistant (ZHA \/ Zigbee2MQTT). Full local control without cloud. Plug into a Raspberry Pi or PC.\u003c\/p\u003e\n\u003cspan class=\"pc-link\"\u003eView Product →\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch2\u003e🔄 SNZB-04PR2 vs SNZB-04P — What's New?\u003c\/h2\u003e\n\u003ctable class=\"pd-specs\"\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSNZB-04PR2 (Gen2) ✨\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSNZB-04P\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e2× AAA (LR03) — cheap \u0026amp; easy\u003c\/td\u003e\n\u003ctd\u003eCR2477 coin cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Life\u003c\/td\u003e\n\u003ctd\u003eUp to 3 years\u003c\/td\u003e\n\u003ctd\u003eUp to 3 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e30mm horizontal \/ 15mm vertical\u003c\/td\u003e\n\u003ctd\u003e≤ 22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTamper Detection\u003c\/td\u003e\n\u003ctd\u003eYes ✓\u003c\/td\u003e\n\u003ctd\u003eYes ✓\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVertical Mount\u003c\/td\u003e\n\u003ctd\u003eYes — dedicated vertical magnet option\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetachable Magnet\u003c\/td\u003e\n\u003ctd\u003eYes ✓\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e45.1g\u003c\/td\u003e\n\u003ctd\u003e~34g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Size\u003c\/td\u003e\n\u003ctd\u003e90 × 26 × 13.5mm\u003c\/td\u003e\n\u003ctd\u003e47 × 27 × 13.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCU\u003c\/td\u003e\n\u003ctd\u003eTLSR8656F512ET32\u003c\/td\u003e\n\u003ctd\u003eCC2652P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003eR 380.00\u003c\/td\u003e\n\u003ctd\u003eR 245.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"pd-info\"\u003e\n\u003ch3\u003eWhich one should I choose?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the SNZB-04PR2 (Gen2)\u003c\/strong\u003e if you want the latest model with AAA batteries (cheaper to replace), a wider 30mm detection range, and flexible vertical\/detachable mounting options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the \u003ca href=\"\/products\/zigbee-door-window-sensor-snzb-04p\" style=\"color:#1e40af;font-weight:700;\"\u003eSNZB-04P\u003c\/a\u003e\u003c\/strong\u003e if you want a more compact sensor at a lower price point and are happy with a CR2477 coin cell battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📋 Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"pd-specs\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eSenseGuard DW Gen2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN \/ Model\u003c\/td\u003e\n\u003ctd\u003eSNZB-04PR2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol\u003c\/td\u003e\n\u003ctd\u003eZigbee 3.0 (IEEE 802.15.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCU\u003c\/td\u003e\n\u003ctd\u003eTLSR8656F512ET32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Type\u003c\/td\u003e\n\u003ctd\u003eMagnetic reed switch (open \/ close)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e30mm (horizontal) \/ 15mm (vertical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTamper Alert\u003c\/td\u003e\n\u003ctd\u003eYes — detects forced removal or damage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHistory Log\u003c\/td\u003e\n\u003ctd\u003eYes — timestamped open\/close events in eWeLink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e3V⎓\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e2× AAA (LR03) — up to 3 years life\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Battery Alert\u003c\/td\u003e\n\u003ctd\u003eYes — push notification via eWeLink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub Required\u003c\/td\u003e\n\u003ctd\u003eYes — ZB Bridge-P, NSPanel Pro, ZB Bridge-U, iHost, ZBDongle-E\/P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHome Assistant\u003c\/td\u003e\n\u003ctd\u003eZHA · Zigbee2MQTT — contact, battery, tamper entities\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Control\u003c\/td\u003e\n\u003ctd\u003eAmazon Alexa · Google Assistant (via hub)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApple Home\u003c\/td\u003e\n\u003ctd\u003eYes — via Matter Bridge (ZBBridge-U, iHost, CUBE OS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApp\u003c\/td\u003e\n\u003ctd\u003eeWeLink (iOS \u0026amp; Android)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Size\u003c\/td\u003e\n\u003ctd\u003e90 × 26 × 13.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet Size\u003c\/td\u003e\n\u003ctd\u003e31 × 14 × 6.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e45.1g (incl. batteries)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCasing Material\u003c\/td\u003e\n\u003ctd\u003ePC (Polycarbonate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5% – 95% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e3M adhesive tape (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003e1× Transmitter · 1× Magnet · 2× AAA batteries · 3M adhesive pads · Quick start guide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 Year Manufacturer Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"pd-warn\"\u003e⚠️ \u003cstrong\u003eHome Assistant Note:\u003c\/strong\u003e Using the SNZB-04PR2 with ZHA currently requires a script. Tamper detection does not yet expose in Home Assistant. See the \u003ca href=\"https:\/\/help.sonoff.tech\/docs\/SNZB-04PR2\" style=\"color:#92400e;font-weight:700;\" target=\"_blank\"\u003eSONOFF Help Centre\u003c\/a\u003e for setup instructions and the latest compatibility info.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"pd-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this work without a hub?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eNo. The SNZB-04PR2 is a Zigbee device and requires a Zigbee 3.0 hub to function. It does not connect to WiFi directly. See the Compatible Hubs section above for options.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat batteries does it use?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eStandard AAA (LR03) batteries — 2 included in the box. No expensive coin cells needed. Expected battery life is up to 3 years under normal use. The eWeLink app alerts you when the battery is running low.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use it on a sliding door or gate?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eYes. Mount the sensor body on the fixed frame and the magnet on the sliding part. Ensure the gap between sensor and magnet is ≤ 30mm (horizontal) or ≤ 15mm (vertical) when closed. For outdoor gates, note this sensor is not weatherproof — mount on the indoor side or in a sheltered location.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat's the tamper alert?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eThe sensor detects if someone physically removes it from the wall or door frame. If forced removal or damage is detected, an instant alert is sent to your phone via eWeLink. You can also trigger smart scenes like gateway sound alarms. Note: tamper detection is not yet available in Home Assistant.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it work with Home Assistant?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eYes. Supported in ZHA (with a script) and Zigbee2MQTT. Exposes: contact (open\/close), battery percentage, and tamper state. Full local control without cloud dependency. See the SONOFF help centre for the ZHA setup script.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow does it compare to the SNZB-04P?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eThe SNZB-04PR2 (Gen2) uses standard AAA batteries instead of a CR2477 coin cell, has a wider 30mm detection range (vs 22mm), supports vertical mounting with a detachable magnet, and has an updated MCU. See the full comparison table above. The SNZB-04P is still a great budget option at R 245. \u003ca href=\"\/products\/zigbee-door-window-sensor-snzb-04p\" style=\"color:#1e40af;font-weight:700;\"\u003eView SNZB-04P →\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it work with Apple HomeKit?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eYes, via a Matter Bridge. You can use the ZBBridge-U, iHost, or CUBE OS with a SONOFF Zigbee Dongle to bridge your Zigbee devices into Apple Home using the Matter protocol.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes Eiferer offer local warranty?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eYes. As an authorised SONOFF distributor in South Africa, all products purchased from Eiferer come with warranty support and local assistance via WhatsApp or phone.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003ch2\u003e🤝 Need Help? We're Here for You!\u003c\/h2\u003e\n\u003cdiv class=\"pd-support\"\u003e\n\u003cdiv class=\"pd-support-card\"\u003e\n\u003cdiv class=\"si\"\u003e📞\u003c\/div\u003e\n\u003ch4\u003eCall Us\u003c\/h4\u003e\n\u003cp\u003eJesse: \u003ca href=\"tel:0716788719\"\u003e071 678 8719\u003c\/a\u003e\u003cbr\u003eJason: \u003ca href=\"tel:0845057481\"\u003e084 505 7481\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-support-card\"\u003e\n\u003cdiv class=\"si\"\u003e🏢\u003c\/div\u003e\n\u003ch4\u003eVisit Us\u003c\/h4\u003e\n\u003cp\u003e8 Wildebraam Street\u003cbr\u003eWeltevreden Park, Roodepoort\u003cbr\u003eGauteng, 1709\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-support-card\"\u003e\n\u003cdiv class=\"si\"\u003e📧\u003c\/div\u003e\n\u003ch4\u003eEmail\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"mailto:sales@eiferer.co.za\"\u003esales@eiferer.co.za\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pd-cta\"\u003e\n\u003ch3\u003e🛡️ Secure Your Home with SenseGuard DW Gen2\u003c\/h3\u003e\n\u003cp\u003eTamper detection · AAA battery · 30mm range · Zigbee 3.0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SONOFF","offers":[{"title":"Default Title","offer_id":50112652148929,"sku":"SNFSENZIGDWPR2W01","price":460.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0022\/3418\/7820\/files\/SNZB-04PR2-MAIN_1.jpg?v=1775031327","url":"https:\/\/eiferer.co.za\/products\/zigbee-door-window-sensor-snzb-04pr2","provider":"Eiferer_ZA","version":"1.0","type":"link"}