The Extech RHT20 is a RH and temperature data logger ideal for monitoring building moisture levels and detecting mould growth. It features a broad relative humidity range from 0% to 100% and is used widely as a mould detector and air humidity meter. Typically applied in indoor environments, it assists in mould alerts and ensures optimal air quality management. https://elecena.pl/product/28942444/extech-rht20-temperature-rh-data-logger-usb-lcd-long-battery-life 2025-06-12 https://elecena.pl/product/28942444/extech-rht20-temperature-rh-data-logger-usb-lcd-long-battery-life 2026-02-25 https://elecena.pl/product/28942444/extech-rht20-temperature-rh-data-logger-usb-lcd-long-battery-life 2026-04-13 https://elecena.pl/product/28942444/extech-rht20-temperature-rh-data-logger-usb-lcd-long-battery-life 2026-05-06 https://elecena.pl/product/28942444/extech-rht20-temperature-rh-data-logger-usb-lcd-long-battery-life 2026-05-28 https://elecena.pl/product/28942444/extech-rht20-temperature-rh-data-logger-usb-lcd-long-battery-life 2026-07-13