Fast-response, solid-state sensors show changes in relative humidity, ambient temperature, and (with probe) external temperature in under 30 seconds

Display is updated once every second and shows temperatures in (user-settable) °F or °C

Jumbo (1.12 in.H) display can be read from 35 feet

External temperature probe (included) reads -50° to +70°C (-58° to +158°F)

External temperature sensor and cable perform accurately under water

Includes: Chemical- and shock-resistant ABS plastic case, flip-open stand, wall mount, external temperature probe, 10 ft. (3m) cable, and AAA alkaline battery