REED R6020 Temperature and Humidity USB Datalogger, -40 to 158°F (-40 to 70°C), 0-100%RH


This compact datalogger records up to 32,000 temperature and relative humidity readings. Simply plug the R6020 directly into a computer to setup parameters (sampling rate, min/max alarms) and disconnect to begin recording. Once data collection is complete, connect again via USB to download to included software for analysis.


  • Stores up to 16,000 temperature and 16,000 humidity readings
  • Simply plug into the USB port to begin downloading - no cables or wires required
  • User selectable sampling rate from 2 secs to 24 hrs
  • Visible alarm (LED) if set max/min values are exceeded
  • Compatible with Windows 7, 8 and 10
  • Wall mount bracket and screws for long-term monitoring


Measuring Range-40 to 158°F (-40 to 70°C)
Accuracy±1.8°F (1.0°C)
Measuring Range0 to 100% RH
Accuracy0 to 20% & 80 to 100%: ±5%
20 to 40% & 60 to 80%: ±3.5%
40 to 60%: ±3%
Resolution0.1% RH
General Specifications
Datalogging CapabilitiesYes
Real-Time Clock and Date StampYes
Settable AlarmsYes (temp. and RH)
Sampling RateYes (2 secs to 24 hours)
Internal Memory32k readings (16,000 temp. and 16,000 humidity)
Power Supply3.6V battery
PC ConnectivityYes (USB)
Software  Included
Software OS CompatibilityWindows 7, 8, 10
Product CertificationsCE
Operating Temperature-31 to 176°F (-35 to 80°C)
Storage Temperature-31 to 176°F (-35 to 80°C)
Operating Humidity Range0 to 100%
Dimensions4 x 1 x 9" (101 x 25 x 23mm)
Weight6 oz (172g)