0.8-100V testing range, ideal for car, truck, and various vehicles' electrical circuits voltage testing, also for automotive battery, battery charging systems, ignition systems, which is a must have tool for any automotive engineer, electronic engineer or circuits DIY. Specifications: Material: ABS Voltage Test Range: 0.8~100V Pen Length: 17.5cm/6.9 in Probe Length: 4.3cm/1.7 in Cord Length: 186cm / 73in Environmental Conditions for Use: CAT.III 300V; pollution level: 2; Altitude＜2000m. Working Temperature and Humidity: 0~40 (＜80% RH, ＜10 Non-condensing) Storage Temperature and Humidity: -10~60 (＜70% RH, remove the battery). Maximum Allowable Voltage Between the Measuring Terminal and the Earth: 300V Sampling Rate: about 3 times/sec Indication of Excess Range: displayOL Enter a Polarity Indication: auto display-sign Battery: 1 x 1.5V AAA batteries(Not included) Item Size: 17.5 * 2.3 * 2.8cm / 6.9 * 0.9 * 1.1in Item Weight: 63g / 2.2oz Package Size: 21.5 * 5.5 * 4.3cm / 8.5 *2.2 * 1.7in Package Weight: 140g / 4.9oz Package List: 1 * Car Voltage Tester 1 * Cloth Bag 1 * User Manual (English)