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Intech IN-HWD - Humidity & Temperature Indicator/Transmitter

IN HWD large


The IN-HWD (rev 2) has the usual two Pt100 inputs for the wet and dry bulb, two 4~20mA outputs for RH and dry bulb temperature, with no software required. The units come factory calibrated and no initial calibration is required when installed as per the Installation Guide. Options are available for adding relay alarm outputs and/or serial port with Modbus RTU.

The alarm setup and the calibration (if required), is now done from the front key pad, not the RS485 like the old 2100-A4-HWD. The optional RS485 is not used for configuration.

Optional: The Intech IN-HWD will connect to our MicroScan SCADA software for logging of the humidity and temperature via the optional RS485 Modbus RTU comms (requires the PLC Modbus driver for direct connection to MicroScan); alternatively connect via a Intech Micro I/O Remote Stationusing the two 4~20mA outputs (does not require the IN-HWD comms option).

IN-HWD Features
IN-HWD Ordering Info
IN-HWD Connection Example

  • Independent Temperature and Relative Humidity Outputs.
  • %RH Accurate to 1.0%.
  • Temperature Accurate to 0.1%.
  • Low Cost.
  • Easy to Install.
  • Typically used with our WDT-DW wet and dry bulb humidity tank.
  • Replaces THE 2100-A4-HWD and the OLD IN-HWD.

Order Number   Description


Input, 1 x wet bulb and 1 x dry bulb
Standard; RTD Pt100, 3 wire DIN (0-100°C)


Output, 1 x humidity and 1 x temperature.
2 channels; 4-20mA
Resolution; 0.025% Full Scale. 12 bit

Indicator; dual LED screens for humidity and temperature
Standard Power supply; 85-264Vac / 95-370Vdc
Order Number   Description
IN-R4   4 x 5A relay outputs
INWS232   Serial Port RS232; includes Modbus RTU
INWS485   Serial Port RS485; includes Modbus RTU
INLV   Low voltage power supply; 15-48Vac / 10-72Vdc
INCOVER   Splash proof locable security cover, IP65

 IN HWD Connection Example

Aegis Sales & Service is Australia's leading supplier of Portable and Fixed Gas Detection, Lone Worker, Height Safety, Confined Space Equipment and process Instrumentation. We also specialise in the sale of breathalysers, drug testing kits and general safety equipment including fire safety, first aid, rescue equipment plus plenty more. Our versatile service team can carry out calibrations, inspection and maintenance of portable and fixed gas detectors, height and roof safety equipment, confined spaces rescue equipment, breathalysers, temperature/process control equipment and many other items in either our workshop or onsite by arrangement. If you're in need for something temporary we hire out a range of equipment for short and long term use. Need something built? We create and design custom fabrications in our workshop to help with all your safety needs.


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