Extech Humidity and Temperature Data logger
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Product Description
Extech RHT20 humidity and temperature datalogger. Records up to 16,000 humidity + 16,000 temperature readings, USB download. Range: 0-100 % RH ±3 %, -40 to +70 °C ±1 °C. IP67 rated for wet environments. Applications: cold-chain shipping monitoring, warehouse condition tracking, food/pharma cold storage verification, cargo insurance temperature-excursion evidence. Data-download software (Windows/Mac) included. Battery-powered CR2032; typical 12-month deployment.
Technical Specifications
- Humidity
- 0 to 100% RH (+/-3%)
- Temperature
- -40 to 70 degC
- Resolution
- 0.1% RH / 0.1 degC
- Memory
- 16,000 samples
- Sample rate
- 2 s to 24 h
- LCD display with MIN/MAX
- USB download
- Power
- 3.6V lithium battery
Standards & Compliance
- HS Code
- 9031.80
Product Documentation
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Catalogue entry last verified: 2026-08-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy RHT20?
- RHT20 can be ordered from cballast.com as a Extech catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Extech product?
- The manufacturer part number is RHT20.
- What is the HS code for RHT20?
- The customs tariff (HS) code for RHT20 is 9031.80.
- Who manufactures RHT20?
- RHT20 is a Extech product in the Measurement & Inspection Tools range.
- Is a datasheet available for RHT20?
- Yes — the RHT20 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for RHT20?
- The minimum order quantity is 1.
- Is RHT20 available?
- Yes — RHT20 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).