{"product_id":"shelly-1pm-gen4-16a-smart-relay-with-power-metering-wifi-zigbee-matter","title":"Shelly 1PM Gen4 — 16A Smart Relay with Power Metering (WiFi \/ Zigbee \/ Matter)","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 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 12px;text-align:center}.pd-trust-item .ico{font-size:22px;margin-bottom:3px}.pd-trust-item .lbl{font-size:12px;font-weight:700;color:#1a1a2e;text-transform:uppercase;letter-spacing:.3px}.pd-trust-item .sub{font-size:11px;color:#888}.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}\u003c\/style\u003e\n\u003cdiv class=\"pd\"\u003e\n\u003ch1\u003e⚡ Shelly 1PM Gen4 — 16A Smart Relay with Power Metering (WiFi \/ Zigbee \/ Matter)\u003c\/h1\u003e\n\u003cp\u003eShelly's \u003cstrong\u003efourth-generation\u003c\/strong\u003e retrofit smart relay — a compact \u003cstrong\u003e16A switch with built-in power metering\u003c\/strong\u003e that hides behind any existing light switch or plug point. Gen4 adds \u003cstrong\u003eZigbee and Matter\u003c\/strong\u003e on top of WiFi and Bluetooth, with a faster chipset and more RAM. One device, every ecosystem — \u003cstrong\u003eno hub required\u003c\/strong\u003e.\u003c\/p\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\"\u003ePower Meter\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003e1% accuracy\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\"\u003e4 Protocols\u003c\/div\u003e\n\u003cdiv class=\"sub\"\u003eWiFi·BT·Zigbee·Matter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e⚡ Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16A Switching + Power Metering\u003c\/strong\u003e — control lights, geysers*, pumps and appliances while measuring real-time consumption to 1% accuracy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiprotocol Gen4 Platform\u003c\/strong\u003e — WiFi 2.4GHz, Bluetooth, Zigbee (802.15.4) and Matter certified; pick the mode that fits your setup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZigbee Repeater + Bluetooth Gateway\u003c\/strong\u003e — extends your Zigbee mesh and relays Shelly BLU sensors into your network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetrofit Install\u003c\/strong\u003e — fits behind an existing wall switch; keeps your physical switch working (toggle or push-button, 2-way wiring supported)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster Chipset, More RAM\u003c\/strong\u003e — ESP-Shelly-C68F with lower latency and TLS 1.2 security\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal Control, No Hub\u003c\/strong\u003e — embedded web interface, schedules (up to 20), scenes, scripting, MQTT, webhooks and KNXnet\/IP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks With Everything\u003c\/strong\u003e — Shelly app, Home Assistant, Apple Home (via Matter), Google Home, Alexa, SmartThings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"pd-tip\"\u003e\n\u003cstrong\u003e💡 Why the PM matters:\u003c\/strong\u003e The built-in power meter turns every switched circuit into an energy sensor — see exactly what that pool pump or heater costs you per month in Home Assistant, and get alerts if a load is drawing when it shouldn't be.\u003c\/div\u003e\n\n\u003ch2\u003e📋 Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"pd-specs\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eShelly 1PM Gen4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Load\u003c\/td\u003e\n\u003ctd\u003e16A (~3,500W resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Metering\u003c\/td\u003e\n\u003ctd\u003eYes — 1% accuracy, with history\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocols\u003c\/td\u003e\n\u003ctd\u003eWiFi 802.11 b\/g\/n (2.4GHz) · Bluetooth 5.0 · Zigbee 802.15.4 · Matter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZigbee Repeater\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU\u003c\/td\u003e\n\u003ctd\u003eESP-Shelly-C68F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitch Input\u003c\/td\u003e\n\u003ctd\u003eToggle or momentary; 2-way\/cross wiring supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrations\u003c\/td\u003e\n\u003ctd\u003eShelly app\/cloud, Home Assistant, MQTT, HTTPS, Webhooks, KNXnet\/IP, Shelly Scripting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHub Required\u003c\/td\u003e\n\u003ctd\u003eNo (Zigbee mode pairs with your existing Zigbee coordinator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eIn-wall (behind switch\/socket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pd-warn\"\u003e\n\u003cstrong\u003e⚠️ Note:\u003c\/strong\u003e WiFi\/Matter mode and Zigbee mode are selected before pairing — the device runs in one mode at a time. *For geysers and other heavy inductive loads, always switch via a contactor.\u003c\/div\u003e\n\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"pd-faq\"\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat's new vs the 1PM Gen3?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eGen4 adds \u003cstrong\u003enative Zigbee and Matter certification\u003c\/strong\u003e, a faster CPU with more RAM, and lower latency. If you run a Zigbee mesh (e.g. Zigbee2MQTT or ZHA) or an Apple Home\/Matter setup, Gen4 is the one to get.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it need a hub?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003e\n\u003cstrong\u003eNo.\u003c\/strong\u003e In WiFi mode it connects straight to your router. In Zigbee mode it pairs with any Zigbee coordinator you already have (Home Assistant dongle, Hue bridge, SmartThings, etc.).\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I keep using my wall switch?\u003c\/summary\u003e\u003cdiv class=\"faq-body\"\u003eYes — the module wires in behind your existing switch, which keeps working normally alongside app, voice and automation control.\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\u003eOne Relay. Every Ecosystem.\u003c\/h3\u003e\n\u003cp\u003eShelly 1PM Gen4 — 16A smart relay · power metering · WiFi \/ Bluetooth \/ Zigbee \/ Matter\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Shelly","offers":[{"title":"Default Title","offer_id":50697795272897,"sku":null,"price":599.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0022\/3418\/7820\/files\/719LzRm_VdL_1.jpg?v=1791463097","url":"https:\/\/eiferer.co.za\/products\/shelly-1pm-gen4-16a-smart-relay-with-power-metering-wifi-zigbee-matter","provider":"Eiferer_ZA","version":"1.0","type":"link"}