Features: Waterproof, dustproof and shockproof, It can be used outdoors- for long time-. Can be used for testing battery voltage for electric motorcycles, motorcycle-,golf cart,automotive-, car, marine, RV-, boat-, etc. Suitable for 5-130V (12v 24v 36v 48v 60v 72v 84v 96v ) Ternary lithium- battery, lead-acid battery, lithium- iron phosphate battery. Red wire for the positive, black wire for the negative.With reverse connection protection. 4 colors- for your option: red/yellow/green/blue. Specifications: Material: plastic Color: red/yellow/green/blue Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xBattery Monitor