Feature:Universal:motorcycle/boat/ATV/UTV/camper/caravan/travel trailer, etc. Twist lock system. Display: dual display 3 digits, LED digital tube, optional light display (red, blue, green). It is suitable for 12V-24V. Mini size, easy to install, perfect for checking voltage. Mounted to the panel, nylon retaining nuts hold the gauge in place. Battery status between full charge and discharge The meter has easy-to-read LED segments and connects to your 12 volt system. Used to monitor battery voltage, with reverse connection protection, the line will not be burned. The battery voltage status can be grasped in time, and it can also be used for voltage measurement of other products.SpecificationProduct Name: Dual Voltage Display Meter Color: blue red green Product material: PC material Wiring instructions: + to the positive pole - to the negative pole Input voltage: 12V-24V Operating temperature: -40C to 80C Product size: 37x3 7x32MM Product features: flame retardant, high temperature resistance, anti-corrosion, durable, not easy to deformPacking list:1x Dual Display VV Voltmeter (three colors optional)Notes:1. Due to manual measurement, please allow a difference of 1-3mm, thank you 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product, please understand.