Part number:1 Welcome to my store , Hope you have a pleasant shopping trip! Description: 1>.It has high precision LM3914 analog voltage detection, users can accurately know the remaining battery power. 2>.The power display range is adjustable, and the display range can be adjusted according to the battery power. 3>.LED power indicator light, clear at a glance. 4>.Suitable for lithium batteries, lead-acid batteries and other batteries, widely used. 5>.The power display tester is simple to test and easy to use.Parameter: 1>.Power consumption: bar display full brightness 42ma, single lamp display 4ma 2>.Measuring range: battery in general 2.4-20v 3>.Display mode: multi-light bar display or single lamp dot display 4>.Size: 50*25mmTips for use(One side of Nixie tube with words is a positive plate): 1>.Adjustment sequence is to adjust the high-end voltage first and then adjust the low-end voltage. Repeat several times for accurate display. 2>.Lower voltage display adjustment: When connecting to the lower limit voltage, turn counterclockwise if not lit, and clockwise if lit several or all lit. Adjust it to just lit one or none lit. 3>.Upper voltage display adjustment: When connecting to the upper limit voltage, turn clockwise if not lit or lit several, and counterclockwise if all lit. Adjust it to just lit one or all lit.Package List:1 x Power Level Indicator Light Board LED Power Indicator Light, Clear At A Glance. The Power Display Range Is Adjustable, and the Display Range Can Be Adjusted According to the Battery Power. It Has High Precision LM3914 Analog Voltage Detection, Users Can Accurately Know the Remaining Battery Power. Suitable For Lithium Batteries, Lead-acid Batteries and Other Batteries, Widely Used. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied. LED Power Indicator Light, Clear At A Glance. The Power Display Range Is Adjustable, and the Display Range Can Be Adjusted According to the Battery Power. It Has High Precision LM3914 Analog Voltage Detection, Users Can Accurately Know the Remaining Battery Power. Suitable For Lithium Batteries, Lead-acid Batteries and Other Batteries, Widely Used. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied.