Temperature and Humidity Sensor


The PRT-ATH1 Protege Temperature and Humidity Sensor is designed to measure temperature and humidity and to operate in a Standalone mode or connected to the Protege System. It has an internal temperature and humidity sensor as well as the circuitry for an external k-type thermocouple temperature sensor.

Key Features:

Digital Outputs

The module contains two user configurable relay Outputs which can be used for direct control of external equipment. It also contains two user configurable LED Outputs which can be set up to display various operating conditions.


The Protege Temperature and Humidity Sensor can be used in a Standalone mode if the full capabilities of the Protege System are not required. In Standalone mode the module can be programmed through dip switch settings or through a terminal emulator program. With the exception of reporting and data logging, all capabilities of the module are available in Standalone mode.

Ordering Code PRT-ATH1
Operating Voltage 12VDC (8 to 30VDC)
Operating Current 20mA (Typical)
Internal Temperature Range -40˚C to 60˚C (±1˚C) (-40˚F to 140.0˚F (±2˚F))
External Temperature Range (Thermocouple) -40˚C to 60˚C (±1˚C) (-40˚F to 140.0˚F (±2˚F))
Humidity Range 0% to 100% (±3%)
Communication Non-isolated
Zone Inputs 8 Trouble Zones
PGM Outputs 2 Relay Outputs (100mA max)
2 Configurable LED Outputs
Operating Temperature 5˚ to 55˚C (41˚ to 131˚F)
Storage Temperature -10˚ to 85˚C (14˚ to 185˚F)
Humidity 0% to 85% (non condensing)
Dimensions (H x W x D) 118 x 75 x 19mm (4.7 x 3 x 0.75”)
Weight 118g (4.16oz)

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