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The Extech RHT50 is a compact datalogger that records relative humidity, temperature, and atmospheric pressure in a single unit. It captures up to 10,000 readings using a user-programmable sample rate, and its USB connector plugs directly into a computer so the logged data can be downloaded and analyzed.
The RHT50 monitors humidity, temperature, and air pressure levels in clean rooms, warehouses, storage rooms, freezers, shipping vans, and water damage restoration environments. These are the settings where tracking ambient conditions over time directly supports product, inventory, and process integrity.
ValueTronics stocks and holds its own inventory in a 20,000 square foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois.
Extech Instruments was acquired by FLIR Systems in 2007, which itself became part of Teledyne Technologies in 2021. The Extech brand has continued under those owners for its line of portable test and environmental measurement instruments.
| Specification | Value |
|---|---|
| Temperature | |
| Range | -40 to 158°F / -40 to 70°C |
| Resolution | 0.1°F/°C |
| Accuracy (14 to 104°F) | ±1.8°F |
| Accuracy (-40 to +14 and 104 to 158°F) | ±3.6°F |
| Accuracy (-10 to 40°C) | ±1.0°C |
| Accuracy (-40 to -10 and +40 to 70°C) | ±2.0°C |
| Humidity | |
| Range | 0 to 100%RH |
| Resolution | 0.1%RH |
| Accuracy | ±3.5%RH |
| Air Pressure | |
| Range | 13.7 to 15.2psi |
| Resolution | 0.1psi |
| Range | 950 to 1050hPa |
| Resolution | 0.1hPa |
| Range | 95 to 105kPa |
| Resolution | 0.1kPa |
| Range | 0.9 to 1.0bar |
| Resolution | 0.1bar |
| General | |
| Datalogging interval | 1 minute to 18 hours |
| Memory | 10,000 points |
| Dimensions | 5.1 x 1.1 x 0.98" (130 x 30 x 25mm) |
| Weight | 1oz (20g) |
Recommended pairing: keep replacement 3.6V lithium batteries on hand using ordering code 42299 (package of 2) named in the RHT50 ordering information.
This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Extech
Condition
Factory New
Manufacturer
Extech
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
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