【20A Max & Dry Contact Output】 Support to connect 20A Max high load, dry contact output.
【LCD Screen】Real-time monitoring of temperature and humidity data, the screen refreshed every 5S.
【6-Month Temp & Humi Historical Data by Hours】 Support to review the temp & hum history data by hour, day and month. Past 6-month history data can be exported in .xlsx format and accurate to hour.
【Local Automatic Control】Support LAN control, automatic control is more reliable. You can set 8 automatic control programs for you to save electricity bills and create comfortable surroundings.
【Voice Control and Query】Work with Alexa, Google Assistant, you can query temperature and humidity values by your voice.
Note 1: Each sensor (Si7021, AM2301, and MS01 need RJ11 adapter to fit for TH Elite.
Note 2: The RL560 is the new sensor extension cable with RJ11, it can connect the SONOFF temperature and humidity sensors to extend your device’s distance. Si7021,THS01 , AM2301, DS18B20and MS01 can be extended to 60M, and MS01 soil moisture sensor can be extended to 10M.
Note: It is only compatible with the Smart Life application..
【Power Metering】Track of power, current, voltage, and cumulative power consumption of your appliances in real-time.
【16A】Support maximum 16A load, compatible with more home appliances.
【6-Month Consumption History Data by Hour】 Power consumption data (accurate to hours) can be kept for up to 6 months which can be exported to excel on your phone.
【Overload Protection】You can set power, current, and voltage threshold. Once any condition is met, the POW Origin will be turned off to protect your appliances.
【Fully Functional】POW Origin has all the most basic functions, like App control, voice control, LAN control, timing schedule, inching setting, power on state, etc.
【Roller Shades Motor Control】Let your electric curtains, roller blinds, etc become smart immediately.
【External Switch Two-Way Control】DUALR3 has 6 types of external switch detection mechanisms, making it suitable for most physical switch control.
【Power Metering】The 2-Gang detects voltage, current, and power values and counts the power consumption for you independently to allow for reasonable energy consumption control.Not available for DUALR3 Lite.
【With The Most Features】DUALR3 has three working modes that meet the needs of different application scenarios. Remote, timing, voice control, smart scenes, and other functions are all available.
【Safe And Reliable】TUV, CE, FCC, and RoHS certifications ensure a safer and more reliable product.
Click to view the difference between DUALR3 and DUALR3 Lite
Note: SONOFF DW2 doesn’t come with batteries into the package.
Measuring range:
Temperature: -40℃~80℃
Humidity: 0-99.9% RH
Accuracy: (in 25℃)
Temperature: ±0.5℃
Humidity: ±3% RH (10…90RH)
Sensor type: Temperature resistive sensor, Humidity capacitive sensors
Operating temperature range: 40℃~80℃
Power supply: 3.3V~5.2V
DC (5V recommended)
Note: Do not include the Thermostat Module.
Package Included:
Waterproof DS18B20 Temperature Sensor Temperature Transmitter 1m 
Sonoff DR-Sonoff DIN Rail Tray 
SONOFF MINIR4M Extreme Wi-Fi Smart Switch (Matter-enabled) 
SONOFF AM2301 Temp and Humi Sensor of 2.5mm Audio Jack 
