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The Extech RHT50 is a compact USB datalogger that records humidity, temperature, and atmospheric pressure in a single pen-style instrument. It captures up to 10,000 readings at a user-programmable sample rate and connects directly to a PC's USB port for configuration and data download — no separate interface cradle or cable required.
The RHT50 is positioned for environmental monitoring in clean rooms, warehouses, storage rooms, freezers, shipping vans, and water damage restoration work. Its three-parameter measurement set — humidity, temperature, and atmospheric pressure together — makes it useful for applications where pressure-sensitive storage or transit conditions need to be documented alongside the more typical temperature and humidity logs.
ValueTronics stocks the Extech RHT50 and supporting accessories at our 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, where every new unit is processed and prepared for shipment by our in-house team rather than drop-shipped through a third-party fulfillment chain. That direct handling is what lets us speak to specific unit availability, accessory completeness, and shipping timelines when you call.
Extech Instruments operates as part of the Teledyne FLIR group, after FLIR Systems acquired Extech and was itself acquired by Teledyne Technologies in 2021. The Extech brand and product line have been maintained through these ownership transitions, and the RHT50 datasheet still carries the 'A FLIR COMPANY' designation from that lineage.
| Specifications | Range | Resolution | Accuracy (%rdg + digits) |
|---|---|---|---|
| Temperature | -40 to 158°F | 0.1°F | ±1.8°F (14 to 104°F) |
| -40 to 158°F | 0.1°F | ±3.6°F (-40 to +14 and 104 to 158°F) | |
| -40 to 70°C | 0.1°C | ±1.0°C (-10 to 40°C) | |
| -40 to 70°C | 0.1°C | ±2.0°C (-40 to -10 and +40 to 70°C) | |
| Humidity | 0 to 100%RH | 0.1%RH | ±3.5%RH |
| Air Pressure | 13.7 to 15.2 psi | 0.1 psi | — |
| 950 to 1050 hPa | 0.1 hPa | — | |
| 95 to 105 kPa | 0.1 kPa | — | |
| 0.9 to 1.0 bar | 0.1 bar | — | |
| Datalogging interval | 1 minute to 18 hours | ||
| Memory | 10,000 points | ||
| Dimensions | 5.1 x 1.1 x 0.98 in. (130 x 30 x 25 mm) | ||
| Weight | 1 oz (20 g) |
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
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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