Descriptions:UT333is a mini digital temperature humidity meter which adopts high-precision temperature humidity sensing module technology to sample,processes data, and displays results on the LCD. it uses calibrated sensing module which reduces bias and increases accuracy.Features:Exquisite and compact, easy to carry and measure.Automatic inductive backlight, humanized design.-10~60° C/14~140° Ftemperature measurement, can switch ° C/° F0-99%RH environment relative humidity measurement.Maximum and minimum value display mode.A great tool for monitoring indoor farming, animal husbandry, warehouse storage, public facilities, and many other areas. Low power consumption chip design.Low battery power indication, automatic shutdown.Specifications:Battery: 3 * AAA1.5V batteriesSize: 13.8 x 5.3cm / 5.43 x 2.09inchBattery: 3 *AAA (Not included)Weight: 158gFunctionsRangeResolutionAccuracyHumidity0~99%RH0.1%RH±5%RH(0~99%RH) Temperature-10~60° C0.1° C±1.0° C14~140° F0.2° F±2.0° FSampling Rate0.5sOverload IndicationOLMAX/MINMAX/MINData HoldHOLDUnit Conversion° C/° FLCD BacklightYes Auto Power Off5minLow Battery Indication3.0~3.5VBattery4.5VCurrent ConsumptionworkingmA≤25mAPower offuA≤10uAWorking Environmenttemperature0~40° Chumidity≤80%RHStorage Environmenttemperature20~60° C belowhumidity≤75%RHKey FunctionsON/OFF (Bluetooth)Short press: power on/offLong press: convert to Bluetooth in the state of power-onMAX/MINShort press to switch between MAX/MIN/QUIT° C/° FShort press to switch between° C/° FHOLD/BLShort press to start data hold mode, long press to turn on/off backlightPackage included:1 xTemperature Humidity Meter (battery not included)