This pen type voltage tester is compact in size, with green backlight LCD screen, suitable for measurement in various environments. Multi-functions design, it can be used for real time AC/DC voltage detection, resistance detection, on/off detection, and with data hold function to meet different needs. With data hold function, you can press the HOLD button to lock the data, and then press to release the lock. Wide applications, easy to find the car wiring fault, find fuses, check wiring, power/ACC easy to troubleshoot. Features: Compact size, lightweight and portable, easy to carry, and does not take up space. Clear definition LCD screen with green backlight, suitable for measurement in various environments. Multi-functions design, it can be used for real time AC/DC voltage detection, resistance detection, on/off detection, and with data hold function to meet different needs. It is equipped with data hold function, you can press the HOLD button to lock the data, and then press to release the lock. High-end metal probe, wear resistance, antioxidation, can provide long lifespan. Spiral spring wire design, high flexibility, convenient storage, easy to use. Equipped with an LED light for illumination in dark environments, and easy observation of the environment at night. Auto power off, power on about 15 minutes without operation, the instrument will automatically shut down. Removable battery compartment back cover, powered by one 1.5V AAA battery (shipped without), easy to replace batteries. Wide applications, easy to find the car wiring fault, find fuses, check wiring, power/ACC easy to troubleshoot. Specifications: Name: Car Voltage Tester Material: plastics Battery: 1 * 1.5V AAA battery (not included) Max allowable voltage between terminal and the Earth: 300V Sampling rate: about 3 times/sec Working temperature: 0-40 Working humidity: 80%RH Item size: 194 * 24 * 27mm / 7.76 * 0.94 * 1.06in Item weight: 112g / 3.95ounce Package size: 214 * 53 * 43mm / 8.43 * 2.09 * 1.69in Package weight: 150g / 5.29ounce Packing List: 1 * Car Voltage Tester 1 * Cloth Bag 1 * Guideline