3REE 12V/24V/36V/48V Power Meter LCD Digital Voltmeter Probe and Tester Electronic Hobby Kit

Instructions:- Press and hold switch on the product, power on, automatically select the interface Select your battery type after corresponding, for example, 3 series lithium battery, you need to enter the selection screen, press the key point to for L3 interface, then off, re-energized, choose success, such as the need to set 12V lead-acid batteries, the key point press to P12V interface, power, re-energized, both choose success Instruments can be used if you Select successfully. The meter shows the power interface, tap switch, switch to voltage interface, click the switch, turn off the meter. the cycle shown as the code corresponds Lead-acid and Lithium batteries can be used to visually display battery state power; With the switch, easy to install and use, no need for an external control switch; The front is a PVC film, the surface can be waterproof; Liquid crystal display, power saving, saving more than 50% power over conventional power