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RHT-Air Wireless Temperature-Humidity Transmitter Mark 1

RHT-Air Wireless Temperature-Humidity Transmitter Mark 1

The RHT-Air is a wireless transmitter that when coupled with the AirGate-Modbus provides an excellent solution for wireless monitoring of temperature, relative humidity and dew point. Through the IEEE 802.15.4 wireless interface, multiple RHT-Airs may talk to one or more AirGates, providing this way USB and RS485 communication paths to the main SCADA or building sytem monitoring application.The Novus Automation RHT-Air transmitter includes high precision and stability sensors for measuring temperature and relative humidity. They are microprocessor devices that can be configured via its USB and IEEE 802.15.4 interfaces with Modbus RTU commands.

The DigiConfig software allows the access to real time information during system operation. Some of the parameters that the user can check are as follow:

  • Battery Level
  • Wireless reception signal intensity
  • Type of the wireless connection with other devices
  • Temperature, relative humidity and dew point


Power supply
Internal battery: Lithium ½ AA, 3.6 V
Battery life: typically 1 yr
External supply (optional): 10 to 35 Vdc, 70 mA max

Operating Limits
Sensor and probe:-20 to 80°C
0 to 100 % RH
Electronic circuit: 0 to +65 °C
0 to 95 % RH
Accuracy: ±3 % RH from 20 to 80 % RH (at 25 °C)
±1 °C for temperature

Wireless Protocol: IEEE 802.15.4
Certifications:Anatel certification
Typical wireless range:Outdoor: 500 m
Indoor: 100 m

Enclosure material: ABS housing with IP65 protection
Nylon probe
Probe extension (DM model): Stainless steel 150 or 250 mm of length
Dimensions: 70 x 60 x 35 mm


Figure1.0: Star Topology (up to 246 Modbus Slaves)

Figure1.1: Long Range Application

Please Note - For dusty environments a dust cap is recommended.



SKU:  RHT-060

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Qty. Price
(AUD ex. GST)
1 to 4 $319.95
5 to 9 $288.00 (10% off)
10+ $272.00 (15% off)