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The THA2 is a multi-function product that monitors temperature, humidity and dew point, provides alarms for out of range conditions and can log collected data.


  • Measures and logs temperature, humidity and dew point
  • Memory capacity: 8150 sample points for temperature, humidity and dew point
  • Audible and visual alarm for temperature, humidity and dew point
  • Sample rate: 1 second to 30 minutes
  • Alarm delay: user selectable, up to 2 hours
  • Cable length sensor 15 ft. (included)
  • Power source: 12V to 24 VAC/VDC, 0.78W alarm active
  • Relay contacts for remote alarm or auto dialer
  • Battery backup: 9V alkaline battery for 35 hours operation during power outage
  • User selectable calibration for temperature and humidity
  • Remote sensor extends up to 300 ft
  • PC software included
  • Direct USB connection
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Operating Temperature Range: -40°F to 140° (-40°C to 60°C)
Operating Humidity Range: 0 to 90% RH Non-condensing
Temperature Accuracy: ± 2°F (± 1°C)
Humidity Accuracy: ± 2% RH
Temperature Resolution: 0.1°F or °C
Humidity Resolution: 0.1% RH
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SDS Product Sheets Cross Reference Information
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Manuals Application Sheets Software
no entry THA2U_swr_pc120.exe

No Cross Reference Available

Do I need a dialer for every alarm?: No, one dialer will accommodate as many alarms as you have, wired in parallel.
Does this temp alarm have battery backup?: Only the TA33 and TAP4 have a battery backup.
Can the Temperature Alarms be calibrated?: There is no recalibration available in the field or at the factory.
Can the alarm activate a bell or light?: Yes, the alarm has a 5 amp, SPDT dry contact.
Can the sensor be extended?: Yes, up to 200 feet, using 24 AWG stranded wire.