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Home / Computer Hardware, Monitors & Peripherals / SHT20 Temperature and Humidity Transmitter Sensor Module - Industrial Grade Modbus RS485 High Precision Monitoring

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Sensor Chip Sensirion SHT20
Communication Protocol Modbus RS485
Power Supply 12-24V DC
Temperature Range -40°C to +80°C
Humidity Range 0% to 100% RH
Temperature Accuracy ±0.3°C
Humidity Accuracy ±2% RH
Response Time 8 seconds (typical)
Housing Protection IP65 Rated
Cable Length 2 meters shielded

5 reviews

A

Anonymous

Apr 10, 2026

Rating: 3/5

Documentation could be better

The sensor itself is accurate, but finding the default Modbus address took some trial and error. Support was helpful eventually.

A

Anonymous

Apr 04, 2026

Rating: 4/5

Good accuracy, easy setup

Works well for our greenhouse project. Only giving 4 stars because the wiring diagram could be clearer, but once connected it performs reliably.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Industrial quality build

Robust housing and stable data output. We are using several of these across our warehouse and haven't had a single dropout.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect for HVAC monitoring

Installed this module in our server room monitoring system. The Modbus integration was straightforward and the readings match our calibrated handheld devices.

A

Anonymous

Jan 31, 2026

Rating: 5/5

Reliable data logging

Using this for environmental logging in a storage facility. Humidity readings are consistent and the RS485 connection is very stable over long distances.

5 FAQ

Q: Can this module operate on 5V power?

A: No, this industrial transmitter requires a power input between 12V and 24V DC to ensure stable RS485 communication.

Q: Can I connect multiple modules on the same bus?

A: Yes, you can daisy-chain multiple modules. Each device must have a unique Modbus slave address configured before installation.

Q: Is this suitable for outdoor installation?

A: Yes, the IP65 housing protects against dust and water jets, making it suitable for outdoor use provided the cable entries are sealed properly.

Q: Does it come with a calibration certificate?

A: Each unit is factory calibrated. A general compliance certificate is included, but individual traceable calibration is available upon request.

Q: What is the maximum cable length for RS485?

A: RS485 can support up to 1200 meters depending on baud rate and cable quality. We recommend using shielded twisted pair cable.

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