1. This product has voltage display function and USB output (mobile phone charging) function. It has only two wires and is simple to connect. It can be used for DC power supply or 12V or 24V battery in the voltage range of 8-40V. The two USB ports can output 5V2A, automatically distribute output current
2. Adopt universal size (48x29mm) design, square hole direct snap-in installation, strong versatility
3. Display resolution: (DC8-40V) 0.01V when less than 10V, 0.1V when greater than 10V
4. Display mode: three-digit 0.36" LED digital tube
5. Lead length: 20cm
6. Refresh speed: about 200mS/time
7. USB output: 5V2A (current 2A, two USBs automatically allocated)
8. Power supply: no power supply required
9. Input: 8-40V (can be used for 12V and 24V batteries)
10. Overall dimensions: length 48x width 29x thickness 16mm
11. Opening size: 46x27mm
12. Weight: 25g