SMAKN® 0.56" 3 Wires BLUE DC 0-40v LED Panel Digital Display Voltage Meter Voltmeter Automatically Adjust the Precision

Red cable: power positive pole, white cable: measure positive pole, black cable: common negative pole.
Red cable voltage can not over 30V.
Dimensions: 48mm x 29mm x 22mm Cutting size : 46mm x 27mm Measure voltage: DC 3.3-30V (two wires Access) Input Polarity: DC voltage Measurement precision:0.01V(0-10V); 0.1V (10-30V) Display: Three 0.56" digital LED Tube Display Color: BLUE Refresh rate: about 500mS / times Operating temperature: -10°c to 65°c Package Includes: 1x Digital LED Voltmeter If measure 10V below, accurate to 0.01V,display x.xx If measure 10V or more,accurate to 0.1V,display xx.x Please note: 1> SMAKN is a registered trademark and the only authorized seller of SMAKN branded products. 2> SMAKN provide you various kinds of great products at the lowest possible prices, welcome to our store and get what you want !!! 3> SMAKN highly appriciate all customers' opinions to improve the selling ,also if anything you unsatisfied, pls contact our customer service department for probable best solution.