Description: Product has only two wires, the wiring is simple, the reverse connection protection, the reverse connection does not burn, the matching lead length is 150MM. The lead-acid battery, the lithium battery is universal, and can be adjusted through the back button. The battery symbol + percentage or battery symbol + voltage can be displayed, and the two display modes can be switched at will. All battery specifications and features are selected via the back button, eliminating the need for a soldering iron. Equipped with a high-brightness LCD display for clear display. Clear readings are available both during the day and at night. The brightness of the backlight is adjustable in 5 steps, and the energy-saving mode can be adjusted. The minimum working voltage is 3.7mA, and the current can be as low as 0.2mA during sleep. Specification: Material: electronic components Product detailed size: Digital voltage measuring instrument size: length 6.2cm / 2.45inch Width : 3.2cm / 1.26inch High : 1.2cm / 0.47inch Line length : 15cm / 5.91inch Working humidity: 10~80% (no condensation) Working pressure : 80~106kPa Minimum resolution: 0.1V Allowable error : 1% Working current :