Extech RHT20 Humidity and Temperature Datalogger

The Extech Humidity and Temperature Datalogger records up to 16,000 readings for temperature and 16,000 readings for relative humidity.

Features

  • USB interface for easy setup and data download
  • Selectable data sampling rate: 1 second to 24 hours
  • User-programmable alarm thresholds for relative humidity and temperature
Your Price $164.99
Usually ships in 1-2 weeks
Extech
Government and Educational PricingGovernment and Educational Pricing
Free Lifetime Tech SupportFree Lifetime Tech Support
ImagePart#Product DescriptionPriceStockOrder
Extech RHT20 Humidity and Temperature DataloggerRHT20 Humidity and temperature datalogger
$164.99
Usually ships in 1-2 weeks
Extech RHT20 Humidity and Temperature Datalogger
RHT20
Humidity and temperature datalogger
Usually ships in 1-2 weeks
$164.99

The Extech Humidity and Temperature Datalogger features a USB interface for easy setup and data download of temperature and humidity readings. The datalogger records up to 32,000 readings, 16,000 for temperature and 16,000 for relative humidity at selectable data sampling rates from 1 second to 24 hours. The user programmable alarm thresholds alert users if a reading exceeds set points. The LCD dispalys current readings, min/max, and alarm status.

 

Applications include monitoring humidity and temperature levels in warehouses, storage rooms, freezers, shipping vans, and offices. The USB connector easily plugs into a computer for data analysis of temperature and humidity readings.

  • Temperature range: 40 to 158°F (-40 to 70°C)
  • Temperature resolution: 0.1°F/°C
  • Temperature accuracy: ±1.8°F (14 to 104°F), ±3.6°F (all other ranges), ±1.0°C (-10 to 40°C), ±2.0°C (all other ranges)
  • Humidity range: 0 to 100%RH
  • Humidity resolution: 0.1%RH
  • Humidity accuracy: ±3%RH (40 to 60%), ±3.5%RH (20 to 40 & 60 to 80%), ±5%RH (0 to 20 & 80 to 100%)
  • Datalogging interval: 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)
  • (1) Datalogger
  • (1) Mounting bracket with combination lock
  • (1) Software CD
  • (1) 3.6V battery
Questions & Answers
No Questions
Please, mind that only logged in users can submit questions

In The News

Sewage an Unseen and Ignored Threat to Coral Reefs and Human Health

It’s an open, dirty secret that the ocean is used as the ultimate sewage solution. Each year trillions of gallons of untreated waste are sent to the ocean due to a widespread lack of sanitation technology or infrastructure that needs updating as cities and populations grow. As the impact of untreated sewage on the ocean becomes clearer, attention to the problem and strategies for dealing with it have not kept up. “This is a massive problem and it’s been largely ignored,” said Stephanie Wear, senior scientist and strategy advisor for The Nature Conservancy. Wear has turned her attention to raising the alarm about the effects of sewage on coral reefs, which often loses airtime to other pressing issues like climate change and overfishing.

Read More

Lake Superior Algal Blooms Surprise, Highlight Need for More Monitoring

In 2012, for maybe the first time, Lake Superior got scummy. Visitors to the Apostle Islands National Lakeshore reported algae washing up on shore around the park.  It was a marked shift for the park, made up of a portion of the Lake Superior lakeshore and nearby islands. The water surrounding the park is cold, clear and typically low in nutrients: a combination unlikely to result in algal blooms. But, in 2012 and again in 2018 after violent storms, major algal blooms—ones observed over multiple days—washed ashore and clogged the beaches with unsightly, scummy algae. Not the usual suspects The algal blooms of Lake Superior are not the algal blooms of warmer, more nutrient-rich lakes like Lake Erie.

Read More

Unprecedented Changes are a New Challenge for Lake Tanganyika

*This is part two of a series on changing ancient lakes. See part one, Lake Baikal, here . Ancient lakes are facing a suite of rapid, unprecedented anthropogenic changes. While ancient lakes are spread around the world and vary widely from lake to lake, their incredible age, which can reach into the tens of millions of years, makes them unique resources to science. They host incredible biodiversity and long sediment records. They are vital sources of food and water for millions of people. In a changing world, ancient lakes’ value as scientific and natural resources and the incredibly diverse life they contain is under threat.

Read More