Shop By Category
* images are for illustrative purposes only


  • bvseo_sdk, net_sdk,
  • getAggregateRating, method:CLOUD, 269ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;
Price w/GST:

Order by 12pm Monday, 18 Feb, earliest delivery Thursday, 21 Feb

The RHT20 is a Humidity Temperature Datalogger which records up to 16,000 Humidity and 16,000 Temperature readings with a user programmable sample rate. 
USB interface for easy setup and data download. 
Dew Point indication via the included Windows-compatible software. 
Selectable data sampling rates of 2s, 5s, 10s, 30s, 1m, 5m, 10m, 30m, 1hr, 2hr, 3hr, 6hr, 12hr, and 24hr. 
User-programmable alarm thresholds for RH and Temperature. 
LCD displays current temperature and humidity readings plus Min/Max and Alarm status. 
Long battery life. 
Place or mount the datalogger in monitoring location (storage bin, truck, cargo hold, freezer, temperature-controlled room, etc.). 
Datalogger records temperature and humidity at sample rate set by user. 
Connect the datalogger to your PC via the USB interface to retrieve readings. 
Datalogger displays the current Humidity and Temperature plus Min/Max and alarm status so it can viewed anytime during the recording process. 
Complete with battery, mounting bracket, and software.
Specifications Range Resolution Accuracy (%rdg+digits)
Temperature -40 to 158°F 0.1°F/°C ±1.8°F (14 to 104°F)
      ±3.6°F (all other ranges)
  -40 to 70°C   ±1.0°C (-10 to 40°C)
      ±2.0°C (all other ranges)
Humidity 0 to 100%RH 0.1%RH ±3%RH (40 to 60%)
      ±3.5%RH (20 to 40 & 60 to 80%)
      ±5%RH (0 to 20 & 80 to 100%)
Datalogging interva 1 second to 24 hours    
Memory Temperature: 16,000 points; Relative Humidity: 16,000 points
Dimensions 3.7 x 1.9 x 1.2" (94.4 x 48.9 x 31.2mm)  
Weight 3.2oz (90.7g)    
Name File Type Size Download
Extech RHT20 Data Sheet .pdf 139 KB
Extech RHT20 Manual .pdf 222 KB
  • bvseo_sdk, net_sdk,
  • getReviews, method:CLOUD, 9ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;
Customers Also Bought
Related Products
Recently Viewed