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. Features: 【Professional Electrical Circuit Testing Tool】Power circuit probe tester is a tool specially used for the maintenance and detection of automobile electrical circuits. The power circuit probe is simple and convenient to operate, and can help you quickly eliminate problems during the process of automobile troubleshooting. 【Excellent Design】The design of this power short circuit probe is exquisite and small, easy to carry and operate. The length of the wire is about 6ft, which can cover the entire engine compartment, facilitating the inspection of the vehicle's electrical system. The high sensitivity probe with tip makes it easier to touch tiny and awkward areas. The head is equipped with a light, which can work easily even in dark or weak light conditions. 【Anti-lost Needle Cover】Adopt the integrated structure design of the probe protection cover, needle guard function is added to ensure that there will be no stab wounds and the guard will not be lost. More durable than normal cable wires, convenient for use and storage, along with alligator clamp to for easy operation. 【LCD Digital Display】The power circuit probe kit designed with LCD digital voltage display for accurate volt readouts. It can be read accurately in daytime or dark areas. 【Wide Application】 The power circuit probe kit is applicable to all types of vehicles, including cars, trucks, motorcycles, etc. The cars short circuit finder is applicable to 0.8-100V. It has overload protection function. When the voltage or current is overloaded, this circuit tester probe will start overload protection to reduce losses. 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: display“OL” 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)