50* 26.5* 23.5 super mini digital Voltge meter - XL3600V series Specifications: Power supply: DC5V 150mA, DC12V 100mA Displayhigh-lighted 15mm Red Reading: 3 1/ 2Digit, 1999 count Operating temperature: 0~ 60 Dimension: ( W) 50mm X ( H) 26mm X ( D) 23.5mm Install tapping size: 46.5mm× 23.5mm Key feature: 1. The position of decimal point can be set arbitrarily by the outer wire. 2. Auto zero-setting 3. Auto polarity changing 4. Ideal for measuring monitoring voltage & current of battery & electrical system in Car, RV, Boat, Motorcycle, Solar Wind Hydro Power System, Various Test & Industrial Equipment.etc 5.More than 50, 000 hours life time 6.Design to offer users maximum simplicity Thanks for your attention !