Features 1. Battery capacity and voltage meter. 2. LCD screen with green backlight. 3. Long-life button with a comfortable hand feel. 4. Equipped with a PVC film, the surface is waterproof. 5. Built-in buckle, screw-free installation. Universal battery capacity meter, requires self-setting. Specification Features: Battery capacity and voltage meter. LCD screen with green backlight. Long-life button with a comfortable hand feel. Equipped with a PVC film, the surface is waterproof. Built-in buckle, screw-free installation. Universal battery capacity meter, requires self-setting. Functions: 1. Manually switch battery percentage / voltage / power off. 2. Automatic recovery of battery capacity / voltage display every two seconds (adjustable). 3. 10s delay automatic shutdown (adjustable). 4. Dual discharge curve selection (adjustable). Specifications: Color: Black Material: HTN / PCB Weight: 18g Size: Approx. 61.3 x 33.3 x 13.5 mm / 2.4 x 1.3 x 0.5 inches Voltage: 6-70 (V) Applicable Area: Battery or battery-powered equipment Storage Temperature: -10 ~ 50 ℃ Setting Instructions: 1. Long press the Set button, power the product, and enter the setup interface. 2. Press the Set button to select the battery specification (Lead-acid battery (P), Lithium battery (L), Fe battery (F)). 3. Short press the Function button to select the number of battery strings (increase with the Set button, decrease with the Function button). 4. Long press the Function button to set the S mode. Package List: 1 x Battery Capacity Voltage Meter with Connecting Cable Note: 1. Supports only 12-48V batteries, such as 12V P01 lead-acid battery, P04 lead-acid battery, and please note that this item does NOT support 6V lead-acid battery. 2. Please note that the new type and old type of this product will be shipped randomly, and please ensure you do not mind before ordering. Package List