Power Display One Key Conversion Electricity Voltage Measuring InstrumentFriendly Tips:1. Please kindly allow 2-3% difference according to manual measurement. 2. Please check the measurement chart carefully before you buy the item. (1 inch = 2.54 cm)3.Please note that slight color difference should be acceptable due to the light and screen. Thanks.Specifications: Types:Display Color: Black Back Light Color: Green Screen Size: 43 x 11.3 mm / 1.69" x 0.44" Voltage Range: 6-63 V Circuit Load Current: 5 - 6 mA Suitable for: 3-15 pcs 3.7 V Lithium Batteries; Lead Acid Batteries 12 V, 24 V, 36 V, 48 V-84 V Dimensions: 61.3 x 33.3 x 13.5 mm / 2.41" x 1.31" x 0.53" Mounting hole Size: 58 x 28.1 mm / 2.28" x 1.11" Wire Length: 30 Cm / 11.8"Package Contents: 1 X Electronic Device DisplayPromise If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.