Note: Sonoff TH16 does not include sensors. Buy Temperature and Humidity sensors on links below;

• Si7021 Temperature & Humidity Sensor
• AM2301 Temperature & Humidity Sensor
• DS18b20 Waterproof Temperature Sensor

Pre-purchase Note:

eWeLink is courtesy of https://www.itead.cc. All the services provided by https://www.itead.cc or eWeLink app itself solely belongs to https://www.itead.cc. We cannot accept complaints about their services. If you have any issue related to their services, please directly contact them. We are only responsible for providing you a fully functional Sonoff TH16 unit in terms of hardware.

Sonoff TH16 is a heavy duty 16A plug and play wireless temperature and humidity monitoring switch which can remotely monitor and set temperature and humidity range to turn on/off connected appliances through the iOS/Android APP eWeLink. It supports four kinds of temperature monitor and humidity monitor sensors such as Si7021, AM2301, DS18B20, DHT11.

Sonoff TH10/ TH16 remote temperature monitor and wireless humidity monitor WiFi switch supports presetting the range for temperature or humidity. When the temperature or humidity of the environment falls within the range, it will automatically turn on or off the connected devices.

The sensor should be plugged before power on. It is not advised to plug or unplug the sensor in power-on state. DS18B20 is waterproof, which measures temperature only. Other sensors can measure both temperature and humidity. This device works perfectly with electric fan, air conditioner, humidifier, smart fish tank, watering system, etc.

Features:

• Supports tracking device status
• Supports remote turn on/off connected appliance
• Supports presetting temperature and humidity to turn on/off
• Supports 8 enabled countdown/single/repeat  timing tasks
• Support checking real-time temperature and humidity
• Support setting smart scene to trigger on/off other smart devices
• Works with Amazon Echo, Echo Dot, Amazon Tap
• Works with Google Home, Google Nest
• Works with IFTTT

Specifications:

• Input voltage: 90~ 250V AC
• Input current: Max 16A
• Max. Power: 3500W(16A)
• Humidity: 5%-90%RH, Non-condensing
• Operating Temperature: 0ºC-40ºC(32°F-104°F)
• Wireless Standard: 802.11 b/g/n
• Security Mechanism: WPA-PSK/WPA2-PSK
• Enclosure Material: Fire-retardant ABS V0
• Dimension: 114*51*32 (mm)
• Supported temperature, humidity sensors: Si7021, AM2301, DS18B20, DHT11
• Gang: 1
• Certification: CE, RoHS, FCC

Si7021 Sensor:

• Temperature Measuring Range: –40℃~+85°C
• Humidity Measuring Range: 0~100%RH
• Storage Temp.: –65℃~+150°C
• Operating Voltage: 2.2-3.6V
• Weight: 26g
• Length: 0.5m

AM2301 Sensor:

• Temperature Measuring Range: -40℃~+80℃
• Humidity Measuring Range: 0~99.9%RH
• Power Supply: 3.3-5.2V DC (5V recommended)
• Temperature Sensor Type: Resistive
• Humidity Sensor type: Capacitive
• Weight: 22g
• Length: 0.5m

DS18B20 Sensor:

• Type: Waterproof temperature sensor
• Probe: Stainless steel temperature probe
• Temperature Measuring Range: -55℃~+125℃
• Power Supply: 3.0-5.5V
• Weight: 26g
• Length: 1m

Further Reading:

• For more information visit official Itead Studio Website
• User Guide
• eWeLink Step-By-Step Guide
• Ewelink Works With Alexa Tutorial
• Wi-Fi Socket/Switch Fail to be Controlled Troubleshooting
• Features wanted, bug report and discuss in Itead Smart Home Forum