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The Tzone RS485 Temperature Sensor is a high-accuracy transmitter designed for industrial applications, featuring a wide measurement range of -40℃ to 125℃ for temperature and 5% to 95% RH for humidity. With its IP65 waterproof rating and RS485 Modbus RTU communication, it ensures reliable performance in various environments, making it ideal for HVAC systems, greenhouses, and more.
J**S
Very solid temp and humidity sensor
This is a really nice sensor. I'm using it to monitor the temperature in a freezer via a RS485 modbus over ethernet controller connected to HomeAssistant. So far it's working perfectly, and is more reliable than a wireless ESP32 based sensor. I'm extremely pleased with this sensor and would definitely recommend it!
N**B
Easier to set up than most Modbus sensors, but no calibration registers.
One of the nifty features of this sensor is that it uses a set of switches in the senor to set the device address. I find this to be better than writing the device address to a modbus register, because there is no longer any reference to what the address is, unless it is noted on the sensor itself. The only write register is the baud rate. There are no calibration registers in this sensor. Doing some bench testing against some of my standards, I did find there needed to be about 1.2 degrees C offset and nearly 10% humidity offset to read to my calibration standards. Since there are no calibration registers in this sensor, you will need to integrate this correction into your PLC, or whatever device you are using to read the data off of this sensor.
Trustpilot
1 day ago
2 weeks ago