Control a wide range of home appliances and office equipment (lights, power lines, garage doors, curtains, security systems, heating, air conditioners, etc.) from anywhere. The UL-certified Shelly 1PM can control one electrical circuit of lights or appliances up to 16A remotely. Connect 110-240v AC or 24-60v DC and measure the power consumption of any appliance.
Power metering
Shelly 1PM has two integrated precise power meters that allow you to measure the consumption for each channel separately. Based on your monthly limit, it can execute different actions.
Overconsumption and overheating protection
Shelly 1PM has а built-in temperature sensor for overheating protection. If the PCB temperature goes above a danger level, the device will turn off. In case you want to control your consumption and spending, set your preferred daily/monthly energy use, and Shelly 2.5 will turn off the circuit immediately if it detects a higher value.
Wide range of voltage support
Shelly 1PM supports up to 110-240v AC or 24-60v DC, making it suitable for most types of Smart Home projects! Additionally, Shelly 1PM has an optional add-on for temperature, humidity, reed switch and other sensors. Hook your lights, washing machine, dryer, refrigerator, or any other old appliance that you want to control and measure remotely.
Device identification
Device name:Â Shelly 1PM
Device model:Â SHSW-PM
Device SSID:Â shelly1pm-XXXXXX
Short description
Shelly 1PM is a small form factor smart switch with power measurement, which allows remote control of electric appliances through a mobile phone, tablet, PC, or home automation system. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services. Shelly 1PM can be accessed, controlled and monitored remotely from any place where the User has internet connectivity, as long as the device is connected to a Wi-Fi router and the Internet. It can be retrofitted into standard electrical wall boxes, behind power sockets and light switches or other places with limited space. Shelly 1PM has embedded Web Interface which can be used to monitor and control the device, as well as adjust its settings.
Main applications
Residential
MDU (Multi Dwelling Units - apartments, condominiums, hotels, etc.)
Light commercial (small office buildings, small retail/restaurant/gas station, etc.)
Government/municipal
University/college
Integrations
Google
Samsung SmartThings
Alexa
Simplified internal schematics
Device electrical interfaces
Inputs
1 switch/button input on screw terminal
3 power supply inputs on screw terminals: N (+), L, L1
Outputs
1 relay outputs with power measurement on screw terminal
Addon interface
Shelly proprietary serial interface
Â
  ⚠CAUTION! High voltage on the add-on interface when the Device is powered!
Connectivity
Wi-Fi
Safety features
Overheating protection
Overpower protection
Supported load types
Resistive (incandescent bulbs, heating devices)
Capacitive (capacitor banks, electronic equipment, motor start capacitors)