Features: UT333BT is light weight and ergonomically designed with user friendly interface. It adopts high-precision temperature humidity sensing module technology to sample, process data and display results on LCD. It is widely used in food storage and transportation, material management, agriculture and forestry animal husbandry, medical and health, teaching experiment, public and household environment and other industries, measuring and monitoring temperature and humidity. Wide humidity measurement range of 0~100%RH. Wide temperature measurement range: -10~60℃/14~140℉. With the function of low battery indication. With the function of auto power off. Specifications: Brand: UNI-T Model: UT333BT Color: red Battery: 3*AAA battery ( battery not included) Size: 13.8 x 5.3 x 3cm / 5.43 x 2.09 x 1.18inch Weight: 165g Function Range Resolution Accuracy Note Humidity 0~100%RH 0.1%RH ±5%RH Environment Humidity:≤90%RH Temperature measurement -10~60℃ 0.1℃ ±1.0℃ Environment Temperature: 23±5℃ Package Included: 1 x Temperature Humidity Meter( battery not included) Note: This product is suitable for IOS 8.4 and above (for iPhone5s or above), suitable for Android 4.3 and above. 1、UT333BT is light weight and ergonomically designed with user friendly interface 2、It adopts high-precision temperature humidity sensing module technology to sample, process data and display results on LCD 3、It is widely used in food storage and transportation, material management, agriculture and forestry animal husbandry, medical and health, teaching experiment, public and household environment and other industries, measuring and monitoring temperature and 4、Wide humidity measurement range of 0~100%RH 5、Wide temperature measurement range: -10~60℃/14~140℉