1. Designed with high definition LCD screen, it offers a clear and bright screen from all angles. 2. Monitor battery capacity and voltage with this mini tester. Easy to read the value in dark environment with bright backlight. 3. Widely used for cars, motorcycles, scooters, bicycles, external batteries, test equipment, etc. 4. To check the battery capacity, directly display the battery capacity sign and the percentage. The instrument has the characteristics of precision and stability, small size, easy to carry. 5. Pro version: Professional version with temperature detection and low pressure alarm function (temperature + alarm version). condition Item Type: Battery Monitor Voltage measurement range: DC8V-100V Operating current: less than 15mA Measurement accuracy: 1% +/- 1 word. Display: LCD display Measurement speed: about 2 times per second. Dimensions: . 6.5 x 3.5 x 1.5cm / 2.6 x 1.4 x 0.6inch Installation size: . 58 x 28mm Cable length: 20cm / 7.9inch Product manual: 1. Ternary lithium battery L string measure L02 to 25 strings. 2. Lead-acid battery measurement P can be from DC12V to DC24V, DC36V, DC48V, DC60V, DC72V, DC84V. 3. The lithium iron F battery pack can measure the F03 string to 26 strings. Craft Supplies: ELECTRICAL Display type: Digital only Working temperature: -10-70Celsius Model Number: Voltmeter colour:Black Material:plastic Package Contents: 1 x Battery Capacity Indicator(Blue screen) 1 x Cable Leads Only the above package content, other products are not included. Note: Light 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.