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Home / Computer Hardware, Monitors & Peripherals / FULLKON High-Precision Temperature and Humidity Transmitter Sensor RS485 Wireless Wall-Mount Industrial Hygrometer 4-20mA

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Communication Protocol RS485 (Modbus RTU)
Analog Output Signal 4–20 mA Current Loop
Power Supply Requirement 12–24 V DC
Temperature Measurement Range -40°C to 80°C
Humidity Measurement Range 0% to 100% RH
Temperature Accuracy ±0.3°C
Humidity Accuracy ±2% RH
Mounting Configuration Wall-Mounted Bracket
Ingress Protection Rating IP65
Housing Material ABS Plastic and Aluminum Alloy

5 reviews

A

Anonymous

Mar 13, 2026

Rating: 5/5

Great value for money

Compared to other industrial transmitters, this offers great features at a competitive price. Very satisfied with the purchase.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Reliable wireless connectivity

The wireless feature works well within our facility. Setup was straightforward and the wall mount is very sturdy.

A

Anonymous

Feb 21, 2026

Rating: 5/5

Excellent precision for industrial use

We installed these sensors in our manufacturing plant. The RS485 communication is stable and the 4-20mA output integrates perfectly with our PLC.

A

Anonymous

Feb 15, 2026

Rating: 4/5

Good sensor, manual could be better

The hardware quality is top notch and readings are accurate. I wished the wiring diagram in the manual was slightly larger.

A

Anonymous

Jan 19, 2026

Rating: 5/5

Perfect for warehouse monitoring

We use this to monitor cold storage conditions. It handles the low temperatures without any issues and alerts are consistent.

5 FAQ

Q: Is a calibration certificate included?

A: Yes, each unit comes with a factory calibration report. Individual ISO certificates are available upon request.

Q: Can I power this with 24V AC?

A: No, this device requires a 12–24 V DC power supply. Using AC power may damage the unit.

Q: What is the maximum wireless range?

A: In open space, the wireless range is up to 100 meters. Obstacles like walls may reduce this range.

Q: Does this sensor support Modbus TCP?

A: This specific model supports Modbus RTU over RS485. For TCP, please check our Ethernet gateway accessories.

Q: Is this suitable for outdoor installation?

A: The unit is IP65 rated, making it suitable for protected outdoor areas. Direct exposure to heavy rain is not recommended.

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