The TRH-1000 is a low-cost, easy-to-use temperature and relative humidity data logger. With its precision calibrated internal temperature and relative humidity sensor, simply place the logger in the field and leave it to record. Once the desired information has been recorded, plug the logger into the serial port of your computer and begin downloading and viewing the logged data with ACR's TrendReader! Express software. No cables, wires or accessories are required, making the TRH-1000 the ideal data logger for quick and accurate temperature and humidity measurements in a variety of applications.

Specifications

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 (32,640 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	IBM PC or 100% compatible, with at least 2 MB RAM, 10 MB of hard drive disk space and one free serial port
Software Requirements	TrendReader® Express - compatible with Windows 3.1, 95, 98, 2000, Me, NT and XP
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.