Features: UT333S is a stable, safe, reliable mini digital temperature and humidity meter. Split type design, it is quick and convenient to measure temperature accurately in different environment. Widely used in food storage and transportation, file management, material management, forestry and animal husbandry, health care, teaching experiment, public sector and families. Precise temperature and humidity sensor. Designed with retractable spring cable for convenient measurement. Large LCD display ensures easy and clear reading. Specification: Model UT333S Basic functions Parameters Precision Temperature measurement range -10~60 (14~140) 1/2 Humidity measurement range 0~100%RH 5% Sampling time 1 time/sec. Unit conversion / Overload indication "OL" indication MAX/MIN Yes Data hold Yes Backlight Yes Auto power off Yes Low battery indication Yes Power supply AAA*3=4.5V(batteries are NOT included) Sampling time 1 second CE certification Yes Weight 283 g / 10 oz(approx.) Package list:1 * Temperature and Humidity Meter 1 * Probe1 * Holder1 * User Manual.