JR-2000 | Longest lasting single channel USB data logger supporting the widest temperature range | ACR Systems
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Longest lasting single channel USB data logger supporting the widest temperature range
JR-2000 Logger only

Single channel USB temperature data logger (includes link to free Windows® software - TrendReader JR).



The new JR-2000 has an industry leading temperature range, battery life and warranty, providing the ideal temperature logging solution for in-building, storage, transport, and environmental monitoring applications across a wide range of industries. With precisely calibrated internal temperature sensor, simply place the logger in the field and leave it to record. Once the desired data has been gathered, plug the logger into a USB port on your computer to download and view logged data.

Key Features

  • Widest temperature range (-40°F to 185°F) (-40°C to 85°C)
  • Longest battery life even at extreme temperatures
  • Industry leading storage size at 100.000 samples
  • Configurable sample rates from every 10 sec. to every 18 hrs.
  • Large, multi-color visual status & alarm indicator
  • Compact, lightweight design that easily fits crowded USB ports
  • Easier-than-ever Windows software (included) with easy configuration wizard (included)
  • 3-year warranty 



Minimum Battery Life 3 years, all conditions
Typical Battery Life 5+ years, (-40°F to 85°F)  (-40°C to 30°C) 
Storage Size 100,000 samples (11 days at 10s sample rate (2 months at 1-minute samples)
Sample Rate 10 seconds to 18 hours
Temperature -40°C to 85°C (-40°F to 185°F)
Humidity 0 to 95% RH (non-condensing)
Alarm High and Low Temperature thresholds (latched or current value)
Status Indicator Flash every 10 seconds (Red: alarm or full, Green: logging, Blue: delayed start)
Size 80 mm x 30mm x 16mm (3.15" x 1.18" x .63")
Weight 37g ( 1.3 oz)
Logging Mode Stop-When-Full or First-In-First-Out
Sample Method Average or spot reading
Start Delay Up to 18 hours
Clock Accuracy +/-2 seconds / day
Connector USB 2.0 type A
Sensor Accuracy

0°C to 70°C (32°F to 158°F)  +/-0.2C

<0°C and >70°C (<32°F and>158°F):  +/-0.6°C or better

Calibration Period

1 year


-10°C to 50°C (14°F to 122°F):  0.03°C

-35°C to -10°C (-31°F to 14°F):  0.1°C or better

50°C to 85°C (122°F to 185°F)  0.1°C or better


Multiple mounting options


ACR TrendReader® JR (compatible with Windows 7, 8 & 10)