Features 1、LCD Clear Displaying: Our battery voltage percentage tester is with LCD display and will be clear and intuitive displaying. 2、Suitable Batteries: Battery voltage percentage detector meter is only suitable for the measurement of 12V, 24V, 36V, 48V, 60V, 72V lithium iron phosphate battery or ternary polymers lithium battery. 3、Remaining Battery Voltage Data: Battery voltage percentage detector measures the remaining battery voltage and display the data on the screen. 4、Embedded and Splashing Proof: The battery percentage tester panel is embedded and sealed, which requires the user to precut holes in the panel. The part of the rear panel installed is splashing proof. 5、Applications: Battery percentage monitor can be used for battery production line testing, warehouse battery sampling, PV inverter, battery repair and electronic DIY. Specification Item Type: Lithium Battery Percentage Meter Material: PC Model: PZEM 009 Screen: LCD Measurement Accuracy: 1% (±1 word) Battery Specification: If you want to change the battery specification during use, you can set it yourself as follows: Step 1: Press and hold the button for 1 second until the word 60VL appears on the screen (the exact display varies depending on the battery specification), then release the button. Step 2: Press the button briefly to select the battery specification Step 3: Press and hold the button for 1 second or stop the button action for 2 seconds to save the data and return to the normal display surface. The product is fully calibrated before leaving the factory, or you can calibrate it yourself if you think there is a deviation as follows: Step 1: Press and hold the button in case of power failure Step 3: LCD will display CAL PASS and return to normal display interface, indicating successful calibration, then release the button. Splashproof Function: The product panel is embedded and sealed, and the panel part has splashproof function after installation. Package List 1 x Battery Voltage Percentage Tester 1 x Connecting Cable 1 x Manual