The twin pack of Shelly 1PM Gen4 smart in-wall switches delivers remote control, precise real-time energy monitoring, and wide compatibility thanks to Wi‑Fi, Bluetooth, Zigbee, and Matter. Ultra-compact design for easy installation behind switches or sockets, no central hub required, with automations, scenes, and integrations for your smart home.
Shelly 1PM Gen4 is a powerful in-wall switch with built-in power metering that enables convenient control of lights and appliances while providing accurate data to optimize electricity costs. With support for Wi‑Fi, Bluetooth, Zigbee, and Matter, it easily integrates into smart home platforms like Alexa, Google Assistant, Samsung SmartThings, or Home Assistant. No central unit is needed—remote access works anywhere with internet.
The compact size makes installation easy in standard wall boxes. The built-in wattmeter and ammeter provide an instant overview of consumption, and the internal temperature sensor adds overheat protection. Control and configuration are available via the Shelly app, web interface, or integrations (MQTT, Webhooks, KNXnet/IP, scripts). Create schedules, scenes, and automations based on time, weekdays, or weather. The module can also act as a Zigbee and Wi‑Fi repeater for better network coverage.
- Real-time energy monitoring – detailed statistics in the app
- Wide compatibility – Wi‑Fi, Bluetooth 5.0, Zigbee 3.0 (802.15.4), Matter
- Easy installation – ultra-compact for mounting behind a switch or socket
- No hub – direct access via the internet and the Shelly app
- Automation – schedules, scenes, MQTT, webhooks, scripts
- Safety – internal temperature sensor and recommended overcurrent protection
- Pack of 2 – a value set for multiple locations at home or in the office
Specifications
- Manufacturer
- Shelly
- Model
- 1PM Gen4 (set of 2)
- Dimensions
- 37 × 42 × 16 mm
- Weight
- 27 g (per unit)
- Max terminal tightening torque
- 0.4 Nm
- Conductor cross‑section
- 0.2–2.5 mm² (24–14 AWG; stranded, solid, ferrule)
- Stripping length
- 6–7 mm
- Mounting
- In-wall installation / wall bracket
- Enclosure material
- Plastic
- Enclosure color
- Red
- Terminal color
- Gray
- Operating temperature
- -20 °C to 40 °C
- Operating humidity
- 30% to 70% RH
- Maximum altitude
- 2000 m
- Power supply
- 110–240 V~; 24–30 V⎓
- Own consumption
- < 1 W
- Neutral required
- Yes
- External protection
- Circuit breaker per EN60898-1 (type B or C, rated current max. 16 A, Icn ≥ 6 kA, energy limiting class 3)
- Voltmeter (AC)
- Yes
- Ammeter (AC)
- Yes
- Internal temperature sensor
- Yes
- Wi‑Fi protocol
- 802.11 b/g/n
- Wi‑Fi band
- 2412–2472 MHz
- < 20 dBm
- Wi‑Fi RF power
- < 20 dBm
- Wi‑Fi range
- Up to 30 m indoors / 50 m outdoors (conditions apply)
- Bluetooth version
- 5.0
- Bluetooth band
- 2402–2480 MHz
- Bluetooth TX power
- < 4 dBm
- Bluetooth range
- Up to 10 m indoors / 30 m outdoors (conditions apply)
- Zigbee protocol
- 802.15.4
- Zigbee repeater
- Yes
- Zigbee band
- 2400–2483.5 MHz
- Zigbee RF power
- < 20 dBm
- Zigbee range
- Up to 100 m indoors / 300 m outdoors (conditions apply)
- Matter
- Supported
- CPU
- ESP‑Shelly‑C68F
- Flash memory
- 8 MB
- Schedules
- Up to 20
- Webhooks
- Up to 20 (5 URLs per webhook)
- Scripts
- Yes (Shelly Script)
- MQTT
- Yes
- Integrations
- HTTPS, Web Hooks, KNXnet/IP, Home Assistant, Alexa, Google Assistant, Samsung SmartThings
- Package contents
- 2× Shelly 1PM Gen4, user manual
