Features 1、Simple and efficient setting, only takes a few seconds to set up. 2、Equipped with a switch, the display can be turned off, and no power will be consumed. 3、Accurately display the percentage of battery capacity and voltage, intuitively grasp the battery capacity status. 4、PVC film surface, waterproof and can be used with confidence. 5、Adopting high specification craft, sturdy and durable to use. Specification Features: 1. Simple and efficient setting, only takes a few seconds to set up. 2. Equipped with a switch, the display can be turned off, and no power will be consumed. 3. Accurately display the percentage of battery capacity and voltage, intuitively grasp the battery capacity status. 4. PVC film surface, waterproof and can be used with confidence. 5. Adopting high specification craft, sturdy and durable to use. Specification: Condition: 100% Brand New Item Type: Electricity Display Material: PCB/HTN Optional Light Color: Blue, Green, White Display Range: 8-100V Compatible Battery: Lead-acid battery, lithium battery, lithium iron battery (can be set up by yourself) Applicable Voltage: 12-84V Operating Temperature: -10~50℃ Size: Approx. 6.1x 3.3 x 1.3cm / 2.4 x 1.3 x 0.5inch Weight: Approx. 20g Package List: 1 x Display 1 x Connecting Line Package List