Digital Display: Support display the voltage value of battery and circuit by digital tube, with the measurement error value of 0.2V.
Indicator Light: Support detect the positive pole "+" or negative pole "-" of the battery and circuit; that is, the positive pole lights up "green" and the negative pole lights up "red "
Multifunctional Design: Powered by the internal 9V battery, support for measuring the voltage value of the battery, and with the measurement ranges of 0-100VDC.
ON-OFF Test & Buzzer Alarm: It can be used to measure the line, conductive body on and off; with buzzer alarm function, buzzer sound indicates that electric wires and other electrical conductors are conductive,
LED Light Design: The instrument is equipped with LED illumination, which is more convenient for using in the dim light environment.
The circuit tester is a practical auxiliary tool, which is designed to detect faults in the low voltage Direct Current circuits of transport machinery. It can be used in the maintenance work of car, motorbike, bulldozer, road roller, excavator and other transport machine. Features: Digital Display: Support display the voltage value of battery and circuit by digital tube, with the measurement error value of 0.2V. Indicator Light: Support detect the positive pole "+" or negative pole "-" of the battery and circuit; that is, the positive pole lights up "green" and the negative pole lights up "red " Multifunctional Design: Powered by the internal 9V battery, support for measuring the voltage value of the battery, and with the measurement ranges of 0-100VDC. ON-OFF Test & Buzzer Alarm: It can be used to measure the line, conductive body on and off; with buzzer alarm function, buzzer sound indicates that electric wires and other electrical conductors are conductive, the buzzer does not sound indicates that electric wires and other electrical conductors are not conductive. LED Light Design: The instrument is equipped with LED illumination, which is more convenient for using in the dim light environment. Easy to Use: The pentip in front of the meter can be switched for alligator clip connection, which is more convenient and flexible when using.  Wide Applications: It is designed to detect faults in the low voltage Direct Current circuits of transport machinery. It can be used in the maintenance work of car, motorbike, bulldozer, road roller, excavator and other transport machine. Caution:  1. Only suitable for use in circuits with 0-100VDC power supplys, do not use in all AC power supplys environments to avoids damage to the main board of the instrument.  2. The heads of the meter is sharping design, so please use it carefully and place it in a place that is not easily accessible to children. Specifications: Name: Auto Circuit Detector Material: plastics Battery: 1 * 9V battery (included) Working temperature: -10℃ to 40℃ Working humidity: <80% Storage temperature: -20℃ to 50℃ Working humidity: <85% Item size: 150 * 75 * 30mm / 5.91 * 2.95 * 1.18in Item weight: 345g / 12.17ounce Package size: 160 * 100 * 50mm / 6.30 * 3.94 * 1.97in Package weight: 355g / 12.52ounce Packing List: 1 * Auto Circuit Detector 2 * Test Cable 2 * Clip 1 * Instruction Manual