The Shelly 1PM Gen4 is a compact smart relay with power metering that installs in the back box behind an existing switch or socket and turns an ordinary load into one controlled from a smartphone. This pack contains 2 identical modules, letting you equip two independent circuits or two rooms in a single project while lowering the per-unit cost.<br><br>The relay switches loads up to 16 A at 240 V AC (about 3840 W resistive) or 10 A at 24–30 V DC and at the same time measures consumed power, voltage and current. Each fourth-generation module supports Wi-Fi 2.4 GHz, Bluetooth 5.0, Zigbee 802.15.4 (with repeater function) and is Matter compatible, so it connects to Shelly Smart Control, Home Assistant, Google Home and Amazon Alexa.<br><br>The 37x42x16 mm housing fits inside a standard mounting box. The connection requires a neutral; the screw terminals accept 0.5–4 mm² conductors. Each module is mounted and wired separately. Suitable for controlling lighting, a boiler, a pump, underfloor heating and socket lines in apartments and houses across Moldova.