[AUTO RANGE DISPLAY]-- Digital multimeter with auto range display of 19999 count, durable in use [EASY TO OPERATE]-- LCD display digital multimeter is easy to operate and high in accuracy [ADJUSTABLE BRIGH]-- Adjustable backlight brightness for clear reading, more convenient to use [MULTIPLE DISPLAY]-- With clock, alarm clock, for Bluetooth audio and ambient temperature display [SUPPORT MUSIC PLAY]-- Support for music, to music while working to relieve work stress 15.Operating Temperature: 0~40, Humidity:less than 75% Storage Temperature: -20~60, Humidity less than 80% 16. : 1.9999V 0.0001V/ 19.999V 0.001V/ 199.99V 0.01V/ 199.99V 0.01V/ 1000.0V 0.1V (0.05%+3) DC Volatge: 19.999mV 0.001mV/ 199.99mV 0.01mV AC Voltage: 1.9999V 0.0001V/ 19.999V 0.001V/ 199.99V 0.01V/ 750.0V 0.1V(0.3%+3) AC Voltage: 19.999mV 0.001mV/ 199.99mV 0.01mV DC Current: 1.9999A 0.0001A/ 19.999A 0.001A+-(0.5%+30) DC Current: 19.999mA 0.001mA/ 199.99mA 0.01mA+-(0.5%+10) AC Current: 1.9999A 0.0001A/ 19.999A 0.001A +-(0.8%+30) AC Current: 19.999mA 0.001mA/ 199.99mA 0.01mA +-(0.8%+10) Resistance: 199.99ohm 0.01ohm +-(0.5%+3) 1.9999kohm 0.0001kohm/ 19.999kohm 0.001kohm/ 199.99kohm 0.01kohm +-(0.2%+3) 1.9999Mohm 0.0001Mohm/ 19.999Mohm 0.001Mohm +-(1.0%+3) 199.99Mohm 0.01Mohm +-(5.0%+5). Capacitance: 9.999nF 0.001nF +-(5.0%+20) 99.99nF 0.01nF/ 999.9nF 0.1nF/ 9.999F 0.001F/ 99.99F 0.01F/999.9F 0.1F+-(2.0%+5) 9.999mF 0.001mF +-(5.0%+5). Frequency: 99.99Hz 0.01Hz/ 999.9Hz 0.1Hz/ 9.999kHz 0.001kHz/ 99.99kHz 0.01kHz/ 999.9kHz 0.1kHz/ 6.000MHz 0.001MHz +-(0.1%+2) Colour:black+red Material:ABS Size:200 x 135 x 105mm Package Contents: 1 x Multimeter(does not include 18650 Lithum battery x 2) 1 x USB charging cable 1 x test pen 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.