TRH-1000 | Dual-channel temperature & relative humidity data logger with 5-year battery life | ACR Systems
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Dual-channel temperature & relative humidity data logger with 5-year battery life
TRH-1000 USB Starter Pack (01-0194)

2-channel, 8 bit, 64 KB data logger (One ambient temperature and one ambient RH channel). Includes TrendReader 2 Express Software and serial to USB adapter cable.


Our TRH-1000 logger is our economical dual-channel data logger ideal for quick, accurate temperature and relative humidity measurements in the field.

Key Features

  • Two channels for recording temperature and relative humidity
  • 64KB memory for almost 33,000 readings per channel
  • 5-year battery life
  • 3-year warranty


Size 25.4 mm x 58.4 mm x 81.3 mm (1" x 2.3" x 3.2")
Weight 74 g (2.6 oz)
Case Material Cycoloy® (GE Plastics) C120 ABS + Polycarbonate
Operating Limits -40 to 70°C (-40 to 158°F) and 0 to 100% RH (non-condensing)
Clock Accuracy +/- 2 seconds per day
Battery 3.6 volt Lithium, 1 Amp-Hour
Battery Life 5 years under normal use (factory replaceable)
Memory Size 64 KB (32,676 readings per channel)
Sampling Methods First-in First-out, Stop When Full, Delay Start, or Spot & Average
Sampling Intervals User selectable from 8 seconds to 34 minutes; readings stored to memory can be spot or averaged over the sample interval (except for the 8 second interval)
Resolution 8-bit (1 part in 256)
PC Requirements Windows PC with a least 256MB RAM, 250MB of hard drive space and one free serial or USB port depending on interface
Software Requirements TrendReader® Express or TrendReader® (Compatible with Windows 7, Windows 8 & Windows 10)
Temperature Sensor Type CMOSens® (by Sensiron)
Temperature Sensor Range -40 to 70°C (-40 to 158°F)
Temperature Sensor Accuracy +/- 0.6°C @ 25°C (+/- 1.0°F @ 77°F); +/- 2.0°C from -40 to 70°C (+/- 3.6°F from -40 to 158°F)
RH Sensor Type CMOSens® (by Sensiron)
RH Sensor Range 0 to 100% RH (non-condensing)
RH Sensor Accuracy +/- 4% RH between 20 and 80% RH; otherwise +/- 5%
Calibration Factory calibration verification and NIST certificates are available upon special request.