Descriptions: UT333 is a mini digital temperature humidity meter that adopts high-precision temperature and humidity sensing module technology to sample, process data, and display results on the LCD. It uses a calibrated sensing module which reduces bias and increases accuracy. Features: Exquisite and compact design, easy to carry and use. Automatic induction backlight, humanized design. Temperature measurement range: -10C to 60C / 14F to 140F, with selectable C/F units. Humidity measurement range: 0-99% RH. Displays maximum and minimum values. Ideal for monitoring indoor farming, animal husbandry, warehouse storage, public facilities, and other applications. Low power consumption chip design. Low battery indication and automatic shutdown function. Specifications: Battery: 3 x AAA 1.5V (not included) Size: 13.8 x 5.3 cm / 5.43 x 2.09 inches Weight: 158g Functions | Range | Resolution | Accuracy Humidity | 099% RH | 0.1% RH | 5% RH (099% RH) Temperature | -1060C | 0.1C | 1.0C Temperature | 14140F | 0.2F | 2.0F Sampling Rate: 0.5s Overload Indication: OL MAX/MIN: MAX/MIN Data Hold: HOLD Unit Conversion: C/F LCD Backlight: Yes Auto Power Off: 5 minutes Low Battery Indication: 3.03.5V Battery Voltage: 4.5V Current Consumption: Working: 25mA Power Off: 10A Working Environment: Temperature: 040C Humidity: 80% RH Storage Environment: Temperature: 2060C Humidity: 75% RH Key Functions: ON/OFF (Bluetooth) Short press: Power on/off Long press: Activate Bluetooth when powered on MAX/MIN Short press: Switch between MAX/MIN/QUIT C/F Short press: Switch between C and F HOLD/BL Short press: Enable data hold mode Long press: Turn backlight on/off Package Included: 1 x Temperature Humidity Meter (batteries not included)