Product name: Circuit detector, low voltage DC circuit fault detector Purpose: A practical auxiliary tool designed for detecting low voltage DC circuit faults in transportation machinery. It can be used in the maintenance of automobiles, motorcycles, bulldozers, road rollers, excavators, etc. Working conditions: -10°C-40°C; Storage conditions: -20°C-50°C; Note: 1. Only suitable for circuits in 0-100V DC power supply environment, do not use in any AC power supply environment to avoid damage to the instrument motherboard. 2. The tip of the test lead is , please use it with caution and keep it out of reach of children. The colors of alligator clips, test leads and batteries are random, no specified colors are accepted Color: As Shown Material: ABS Package Contents: 1set x circuit testers Only the above package content, other products are not included. Note: Light reflection 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.