Shelly 1PM single channel WiFi smart relay switch with power meter

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Shelly 1PM is one of the world’s smallest WiFi-equipped smart relay switch, with power meter feature. Thanks to its small size, it fits into the wall under the power socket or a standard light switch.

EAN: 3809511201985


Shelly 1PM is the power meter-equipped version of Shelly 1. This is one of the smallest, open source, WiFi-access device to smart control circuits. Due to its small size you can built it in behind a power socket / standard light switch or into an electrical cabinet.

Building Shelly 1PM behind them you can control lights by keeping your existant switches and monitor their status (turned ON / OFF).
Capable for alternative and cross-switch functioning. Features power metering.

Timer function:

  • set schedules of turning ON / OFF to any weekdays
  • supports schedules adjusted to dawn/dusk

Mongoose OS-based, free Cloud service and smartphone app of the manufacturer is also available to smart control Shelly 1PM.

Built-in web-server, configurable from web-interface via local network. LAN-compatible, controllable via local network without Shelly Cloud and Internet access. Supports MQTT.

Compatible with Google Home and Amazon Echo voice control.

The device operates with a ESP8266 based control, firmware can be modified as you want through the built-in pin-bus (Sonoff-Tasmota, ESPEasy, ESPurna e.g.), can be integrated easily with own automatization server.

Like other smart switches this device has to be connected to phase wire and neutral wire too.

Power supply: 110-230V, 50/60Hz AC, 24 – 60V DC

Peak output: 3500W / 16A


CE and other certificates and test reports for Shelly smart home devices: