Voltage measurement range: 0-100V DC frequency: AC 1KHZ current: 2MQ/20MQ file 50MA; 200MQ/2Q file 5MA; 20Ω/200Q file 0.5MA Serial port: must be opened on the instrument to connect the computer communication, the default is closed. Baud rate of 115200 Resistance range: 6 ranges automatic and manual Voltage range: 3 ranges auto and manual Display update: 5 times/second Resistance calibration: Each range is calibrated manually without interfering with each other. Voltage calibration: Manual calibration for each range individually, without affecting each other. Factory setting: save factory information, one key can restore the factory state Backlight: Yes Display results: LCD display, direct reading Weight: 173.5G Energy-saving settings: 30 minutes delay, no operation automatic shutdown Charging power: built-in carp battery, using 5V/1A charger charging Size: length 166MM width 80MM height 28MM Language: Chinese, English, can be switched at will Color: yellow material: plastic Package Contents: 1 x High-precision detector 1 x Kelvin clip 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. Color: yellow material: plastic Resistance basic accuracy: ±0.5% Resistance measurement range: 0-200Ω Voltage basic accuracy: ±0.5%