{"product_id":"🚨-sonoff-snzb-09p-zigbee-senseguard-indoor-siren-105-db-usb-c-battery-backup","title":"🚨 SONOFF SNZB-09P — Zigbee SenseGuard Indoor Siren (105 dB, USB-C, Battery Backup)","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 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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-var{display:flex;gap:10px;margin:14px 0 18px;flex-wrap:wrap}.pd-var a{display:inline-block;padding:10px 20px;border:2px solid #e5e7eb;border-radius:8px;font-size:13px;font-weight:700;color:#1a1a2e;text-decoration:none;transition:all .2s}.pd-var a:hover{border-color:#dc2626;color:#dc2626}.pd-var a.active{border-color:#1a1a2e;background:#1a1a2e;color:#fff}.pd-compare{width:100%;border-collapse:collapse;margin:14px 0;font-size:13px}.pd-compare th{background:#1a1a2e;color:#fff;padding:10px 12px;text-align:left;font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.3px}.pd-compare td{padding:10px 12px;border-bottom:1px solid #f0f0f0;color:#444}.pd-compare tr:nth-child(even){background:#f8f9fa}.pd-compare td:first-child{font-weight:700;color:#1a1a2e}\u003c\/style\u003e\n\u003cdiv class=\"pd\"\u003e\n\u003ch1\u003e🚨 SONOFF SNZB-09P — Zigbee SenseGuard Indoor Siren (105 dB, USB-C, Battery Backup)\u003c\/h1\u003e\n\u003cp\u003eTurn any Zigbee sensor into a loud, unmissable local alarm. The \u003cstrong\u003eSONOFF SNZB-09P\u003c\/strong\u003e is a compact indoor siren that pairs to your Zigbee hub and delivers a \u003cstrong\u003e105 dB audible alert\u003c\/strong\u003e plus a \u003cstrong\u003ered flashing light\u003c\/strong\u003e — sound only, light only, or both together. Choose from \u003cstrong\u003e10 built-in tones\u003c\/strong\u003e, \u003cstrong\u003e4 volume levels\u003c\/strong\u003e, and set alarm duration up to \u003cstrong\u003e15 minutes\u003c\/strong\u003e. Powered via \u003cstrong\u003eUSB-C\u003c\/strong\u003e with a \u003cstrong\u003ebuilt-in lithium backup battery\u003c\/strong\u003e that keeps the siren armed for up to \u003cstrong\u003e300 days\u003c\/strong\u003e during power outages — essential for load shedding. Works with \u003cstrong\u003eeWeLink, Alexa, Google Home, and Home Assistant\u003c\/strong\u003e. MPN: \u003cstrong\u003eSNZB-09P\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eComplete your Zigbee security system:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"pd-var\"\u003e\n  \u003ca href=\"\/products\/sonoff-snzb-04p-zigbee-door-window-sensor\"\u003eSNZB-04P · Door Sensor\u003c\/a\u003e\n  \u003ca href=\"\/products\/sonoff-zigbee-motion-sensor-snzb-03p\"\u003eSNZB-03P · PIR Motion\u003c\/a\u003e\n  \u003ca href=\"\/products\/zigbee-presence-sensor-snzb-06p\"\u003eSNZB-06P · Presence\u003c\/a\u003e\n  \u003ca href=\"\/products\/sonoff-snzb-05p-zigbee-water-leak-sensor\"\u003eSNZB-05P · Water Leak\u003c\/a\u003e\n\u003c\/div\u003e\n\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\"\u003e105 dB Alarm\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003e10 Tones + Red Light\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\"\u003eBackup Battery\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003e300 Days Standby\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pd-warn\"\u003e\n\u003cstrong\u003e⚠️ Zigbee hub required. USB-C power required.\u003c\/strong\u003e This siren needs a Zigbee 3.0 hub and a USB-C power source (5V adapter or USB port). Backup battery is for outages only, not primary power. See \u003cstrong\u003eCompatible Hubs\u003c\/strong\u003e section below.\u003c\/div\u003e\n\n\u003ch2\u003e⚡ Key Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e105 dB Loud Alarm\u003c\/strong\u003e — powerful enough to cover an entire floor, deter intruders, and alert everyone in the home\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 Volume Levels\u003c\/strong\u003e — adjustable from a soft chime for notifications to full-volume alarm for security events\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10 Built-In Alarm Tones\u003c\/strong\u003e — assign unique sounds to different sensors or zones so you know instantly what triggered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Alert Modes\u003c\/strong\u003e — sound only, light only, or synchronised sound and light for maximum attention\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRed Flashing Light Strip\u003c\/strong\u003e — front-facing circular LED provides clear visual alerts, especially in low-light rooms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Alarm Duration\u003c\/strong\u003e — set anywhere up to 15 minutes to suit different scenarios\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Power Supply\u003c\/strong\u003e — USB-C 5V mains with a 600 mAh lithium backup battery that recharges automatically when power returns\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e300 Days Battery Standby\u003c\/strong\u003e — stays armed and Zigbee-connected for months during outages, ready to fire at full 105 dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTamper Detection\u003c\/strong\u003e — reports to your hub when the siren body is removed from its base\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocal Zigbee Scenes\u003c\/strong\u003e — sensor-to-siren automations fire locally even during an internet outage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCamera Linkage\u003c\/strong\u003e — trigger the siren when your SONOFF camera detects an event, converting passive monitoring into active deterrence\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHome Assistant\u003c\/strong\u003e — supported in Zigbee2MQTT; native ZHA support pending merge (manual script available in the meantime)\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003ePair with a SNZB-04P door sensor for instant intruder alerts. Choose an intense tone for unauthorised entry and a soft chime for expected arrivals — one siren, two roles.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e💧\u003c\/div\u003e\n\u003ch4\u003eWater Leak Protection\u003c\/h4\u003e\n\u003cp\u003eLink to a SNZB-05P water leak sensor in your kitchen, bathroom, or geyser cupboard. Get an immediate audible warning before minor drips become expensive damage.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e🚶\u003c\/div\u003e\n\u003ch4\u003eMotion \u0026amp; Presence Zones\u003c\/h4\u003e\n\u003cp\u003eCombine with a SNZB-03P PIR or SNZB-06P presence sensor for garages, hallways, or storerooms. Different tones let you identify which zone was triggered without checking the app.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"pd-feat\"\u003e\n\u003cdiv class=\"fi\"\u003e📹\u003c\/div\u003e\n\u003ch4\u003eCamera-Triggered Alarms\u003c\/h4\u003e\n\u003cp\u003eConvert your SONOFF cameras into an active deterrent. When AI human detection fires, the siren sounds automatically — far more effective than a phone notification alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pd-tip\"\u003e\n\u003cstrong\u003e💡 Smart scene idea:\u003c\/strong\u003e Combine the SNZB-09P with a \u003ca href=\"\/products\/sonoff-snzb-04p-zigbee-door-window-sensor\" style=\"color:#065f46;font-weight:600\"\u003eSNZB-04P door sensor\u003c\/a\u003e and a \u003ca href=\"\/products\/cam-b1p-smart-outdoor-ip65-security-camera\" style=\"color:#065f46;font-weight:600\"\u003eCAM-B1P camera\u003c\/a\u003e. When the door opens outside armed hours, the siren sounds at full volume, the camera starts recording, and you get a push notification with a snapshot — a complete DIY alarm response.\u003c\/div\u003e\n\n\u003ch2\u003e🔊 Alarm Modes Explained\u003c\/h2\u003e\n\u003ctable class=\"pd-compare\"\u003e\n  \u003ctr\u003e\n\u003cth\u003eMode\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSound + Light\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eSecurity events\u003c\/strong\u003e — intrusion, forced entry. Maximum deterrent and attention.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSound Only\u003c\/td\u003e\n\u003ctd\u003eNotifications from motion sensors, doorbells, or scheduled reminders where a visible alert is unnecessary.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLight Only\u003c\/td\u003e\n\u003ctd\u003eSilent alerts at night, hearing-impaired household members, or subtle status indication.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSilent Standby\u003c\/td\u003e\n\u003ctd\u003eDevice stays online and responsive but produces no output. Battery lasts \u003cstrong\u003eup to 300 days\u003c\/strong\u003e in this state.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003e🔋 Load-Shedding Ready — Dual Power\u003c\/h2\u003e\n\u003cp\u003ePowered by \u003cstrong\u003eUSB-C at 5V\u003c\/strong\u003e for normal operation, with a \u003cstrong\u003ebuilt-in 600 mAh lithium backup battery\u003c\/strong\u003e that takes over automatically the moment mains power is cut. This matters in South Africa: load shedding is exactly when your security is most likely to be tested. When USB power returns, the battery recharges automatically. In silent standby the backup lasts up to \u003cstrong\u003e300 days\u003c\/strong\u003e, and even after months on battery it will still sound at full 105 dB when triggered.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e your Zigbee hub also needs backup power for scenes to fire during an outage — pair with a UPS or a hub on always-on hardware.\u003c\/p\u003e\n\n\u003ch2\u003e📡 Compatible Zigbee Hubs\u003c\/h2\u003e\n\u003cp\u003eThe SNZB-09P 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 devices via eWeLink. The easiest way to get started with Zigbee sensors and sirens.\u003c\/p\u003e\n\u003cspan class=\"pc-link\"\u003eView Product →\u003c\/span\u003e\u003c\/a\u003e\n  \u003ca href=\"\/products\/sonoff-bridge-max-smart-home-bridge-bridge-m\" class=\"pd-pcard\"\u003e\u003cdiv class=\"pc-type\"\u003eSmart Home Bridge · Multi-Protocol\u003c\/div\u003e\n\u003ch4\u003eSONOFF Bridge Max\u003c\/h4\u003e\n\u003cp\u003eAdvanced multi-protocol bridge with wider device support. Ideal for larger installations mixing Zigbee sirens, sensors, and other connected devices.\u003c\/p\u003e\n\u003cspan class=\"pc-link\"\u003eView Product →\u003c\/span\u003e\u003c\/a\u003e\n  \u003ca href=\"\/products\/zigbee-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 running Home Assistant with distributed sensors and sirens.\u003c\/p\u003e\n\u003cspan class=\"pc-link\"\u003eView Product →\u003c\/span\u003e\u003c\/a\u003e\n  \u003ca href=\"\/products\/sonoff-dongle-lite-mg21-zigbee-thread-usb-dongle-dongle-lmg21\" class=\"pd-pcard\"\u003e\u003cdiv class=\"pc-type\"\u003eUSB Dongle · Compact · Zigbee + Thread\u003c\/div\u003e\n\u003ch4\u003eSONOFF Dongle-LMG21\u003c\/h4\u003e\n\u003cp\u003eCompact USB Zigbee\/Thread coordinator for Home Assistant. Full local control via ZHA or Zigbee2MQTT. 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\n\u003ch2\u003e📋 Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"pd-specs\"\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eSONOFF SNZB-09P SenseGuard Zigbee Indoor Siren\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMPN \/ Model\u003c\/td\u003e\n\u003ctd\u003eSNZB-09P\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIndoor audible + visual siren\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProtocol\u003c\/td\u003e\n\u003ctd\u003eZigbee 3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHub Required\u003c\/td\u003e\n\u003ctd\u003eYes — ZB Bridge-P, Bridge Max, ZBDongle-Max, Dongle-LMG21, NSPanel Pro, iHost, Echo Plus 2nd\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAlarm Volume\u003c\/td\u003e\n\u003ctd\u003eUp to 105 dB — 4 adjustable levels\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAlarm Tones\u003c\/td\u003e\n\u003ctd\u003e10 built-in, individually selectable per automation\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAlarm Duration\u003c\/td\u003e\n\u003ctd\u003eAdjustable up to 15 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eVisual Alert\u003c\/td\u003e\n\u003ctd\u003eRed circular LED light strip, flashing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAlert Modes\u003c\/td\u003e\n\u003ctd\u003eSound only · Light only · Sound + Light\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003eUSB-C 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBackup Battery\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 600 mAh lithium — up to 300 days silent standby\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTamper Detection\u003c\/td\u003e\n\u003ctd\u003eYes — reports when removed from base\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eScrews or 3M adhesive\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e81 × 81 × 35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e106 g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eABS (flame retardant)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0°C to 45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e0–90% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHome Assistant\u003c\/td\u003e\n\u003ctd\u003eZigbee2MQTT supported — native ZHA pending merge\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\u003eApp\u003c\/td\u003e\n\u003ctd\u003eeWeLink (iOS \u0026amp; Android)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE · FCC · RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 Year Manufacturer Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"pd-faq\"\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes it need a hub?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003e\n\u003cstrong\u003eYes.\u003c\/strong\u003e The SNZB-09P is Zigbee 3.0 — it has no WiFi radio and must connect through a Zigbee gateway. Compatible options we stock include the \u003ca href=\"\/products\/sonoff-zb-bridge-p\"\u003eSONOFF ZB Bridge-P\u003c\/a\u003e, \u003ca href=\"\/products\/sonoff-bridge-max-smart-home-bridge-bridge-m\"\u003eSONOFF Bridge Max\u003c\/a\u003e, \u003ca href=\"\/products\/zigbee-sonoff-zbdongle-max\"\u003eZBDongle-Max\u003c\/a\u003e, and \u003ca href=\"\/products\/sonoff-dongle-lite-mg21-zigbee-thread-usb-dongle-dongle-lmg21\"\u003eDongle-LMG21\u003c\/a\u003e. It also works with Home Assistant via Zigbee2MQTT.\u003c\/div\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow loud is 105 dB?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eVery loud — similar to a chainsaw or a live rock concert at close range. It will easily fill a typical home and can be heard from outside. The 4 adjustable volume levels let you scale it down for indoor notification use, or run it at full power for genuine security events.\u003c\/div\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes it still work during load shedding?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003e\n\u003cstrong\u003eYes.\u003c\/strong\u003e The built-in 600 mAh lithium battery automatically takes over the moment USB power is lost. It keeps the siren armed and Zigbee-connected for up to 300 days in silent standby, and it can still deliver the full 105 dB alarm on battery. When power returns, it recharges automatically. Note: your Zigbee hub also needs to be running for automations to fire — pair with a UPS or a Home Assistant setup on always-on hardware.\u003c\/div\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I use it as a doorbell chime?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003e\n\u003cstrong\u003eYes.\u003c\/strong\u003e Set one of the 10 tones as your doorbell sound, drop the volume to a lower level, and link it to a wireless button at your gate. You get a full-house chime without wiring anything.\u003c\/div\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes it work with Home Assistant?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003e\n\u003cstrong\u003eYes, via Zigbee2MQTT.\u003c\/strong\u003e Full device support is available in Z2M today. Native ZHA support has a pull request submitted but not yet merged — in the meantime ZHA users can add manual configuration via SONOFF's setup script.\u003c\/div\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I tell which sensor triggered the siren?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eAssign a \u003cstrong\u003edifferent tone to each sensor or zone\u003c\/strong\u003e. For example: garden gate = tone 1, kitchen leak sensor = tone 2, garage motion = tone 3. When you hear the alarm you know instantly which zone tripped without checking your phone. This is one of the SNZB-09P's most useful features versus a basic siren.\u003c\/div\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I install it outdoors?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003e\n\u003cstrong\u003eNo.\u003c\/strong\u003e The SNZB-09P is rated for indoor use only — there's no IP rating. For an outdoor deterrent, mount it just inside a garage or entrance where it's still audible from outside but protected from weather.\u003c\/div\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat if someone tries to disable it?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eThe siren has \u003cstrong\u003etamper detection\u003c\/strong\u003e — if the body is removed from its base, it sends a tamper alert to your hub. You can create an automation that triggers the siren itself, sends a push notification, or triggers another siren in a different location.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\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\u003e\u003ca href=\"tel:0716788719\"\u003eJesse: 071 678 8719\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"tel:0845057481\"\u003eJason: 084 505 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:info@eiferer.co.za\"\u003einfo@eiferer.co.za\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"pd-cta\"\u003e\n\u003ch3\u003eLoud. Local. Load-Shedding Ready.\u003c\/h3\u003e\n\u003cp\u003e105 dB Zigbee siren with 300 days of battery backup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SONOFF","offers":[{"title":"Default Title","offer_id":50514380193985,"sku":"SNFSENSIRENW101","price":749.0,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0022\/3418\/7820\/files\/1_4__1.png?v=1787216633","url":"https:\/\/eiferer.co.za\/products\/%f0%9f%9a%a8-sonoff-snzb-09p-zigbee-senseguard-indoor-siren-105-db-usb-c-battery-backup","provider":"Eiferer_ZA","version":"1.0","type":"link"}