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Has a mini-USB connector for power
Three External DS18B20 temperature sensors are used to detect temperature
It measures temperatures from -55°C to +125°C
and two external temperature sensors
Wireless Door Contact Temperature Sensor M Series RF ID:RF2 Has a mini-USB connector forMonitor temperature from your phone or Desktop Create temperature alerts Use temperature to trigger automation The battery lasts over a year A powerful transmitter can penetrate walls and floors and up to 1km line of sight. Configured to transmit a temperature reading every 5 minutes (configurable). Out of the box temperature monitoring solutions are available Can be interfaced with many IoT systems (e. g., Blynk, Home Assistant, Adafruit IO,