Extech RH25 Psychrometer, 122°F Max, ±1 °F Accuracy, Digital Display, Battery-Powered

The FLIR Heat Index Psychrometer is a pocket-sized device designed to monitor heat index during hot and humid days. It helps prevent heat stroke during outdoor activities or sporting events. With its user-friendly pen-sized design, you can easily carry it wherever you go.

Data hold function for convenient usage
Auto power off with disable option for battery saving
Built-in multiparameter sensor for accurate readings