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Temperature and Humidity Transmitter 'testo 6621'

Humidity sensor with excellent durability of ±2% RH! A compact and aesthetically pleasing temperature and humidity converter.

The "testo 6621" is a compact and stylishly designed temperature and humidity transmitter. It is available in wall-mounted types, including built-in sensor types, protruding types, and duct types, allowing you to choose between models with or without a display and with or without a logo, depending on the installation location. Additionally, we also offer the "testo 6651," which features a digital probe with a humidity accuracy of ±1.7% RH. 【Features】 ■ Durable humidity sensor with ±2% RH accuracy ■ Adjustable and span adjustment available with optional software ■ Compact and stylish design *For more details, please download the PDF or feel free to contact us.

Temperature and humidity converter testo 6651 product page

basic information

【testo 6651 Features】 ■ Humidity sensor with excellent durability of ±1.7% RH ■ Digital probe with system calibration capability ■ Compatible with environments up to 120°C ■ 2-channel analog output (temperature, humidity, dew point temperature) ■ Contact output option ■ Ethernet compatible (optional) *For more details, please download the PDF or feel free to contact us.

Price range

P2

Delivery Time

OTHER

Model number/Brand name

0555 6621

Applications/Examples of results

For more details, please download the PDF or feel free to contact us.

Testo Comprehensive Catalog 2025

CATALOG

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