A Mini Digital Temperature and Humidity Meter which adopts high-precision temperature humidity sensing module technology to sample processes data and displays results on the LCD. It uses a calibrated sensing module which reduces bias and increases accuracy. It is lightweight compact ergonomic and user friendly making it a great tool for education and many other areas.Automatic inductive backlight humanized design. Exquisite and compact easy to carry and measure.temperature measurement can switch ° C/° F.Maximum and minimum value display mode.Low power consumption chip design.Low battery power indication automatic shutdownHumidity range & accuracy: 0~99%RH ; ±5%RH(0~99%RH)Temperature range & accuracy: -10~60° C ; ±1.0° C 14~140° F; 0.2° F; ±2.0° FSampling Rate: 0.5sOverload Indication: OLData Hold: HOLDLCD Backlight: YesAuto Power Off: 5minLow Battery Indication: 3.0~3.5VBattery: 4.5VCurrent Consumption working: =25mAPower off: =10uAKey Functions: ON/OFF (Bluetooth)Short press: power on/offLong press: convert to Bluetooth in the state of power-onMAX/MIN: Short press to switch between MAX/MIN/QUIT° C/° F: Short press to switch between° C/° FHOLD/BL: Short press to start data hold mode long press to turn on/off backlightSpecifications: Size: 13.8 x 5.3cm / 5.43 x 2.09inchBattery: 3 *AAA (Not included)Weight: 158g