DescriptionBrand Name : GOOGZONDIY Supplies : ELECTRICALOrigin : Mainland ChinaDimensions : as the picture showsOperating Temperature : normalAccuracy Class : 1 adjustableDisplay Type : Digital OnlyPower Supply : DCCertification : NONEModel Number : LED Digital VoltmeterDear customer: Thank you for choosing my store for shopping. The following are the matters needing attention for shopping:A. Economic transportation: detailed tracking information will not be included. Most of the packages will cause delayed delivery within the expected delivery time, so you need to be patientB. Each product link: There will be different option variants. If you do nt know how to select the product you want, please contact me, I will be honored to solve this problem for you.C. When you receive the package, there is product damage / product problem / error product and shipping problem, please contact me in time, I will solve it for you D. If you are a wholesaler / distributor, a large number of orders and quantities, to provide you with factory prices, and hope to be honored to reach a partner with you GOOGZON store: I wish you a happy life This voltmeter has a fine-tuning button, you can adjust the resistance and voltage by yourself.The voltmeter is small in size, with a range of DC 0-100V.An auxiliary power supply is needed. The power supply voltage range is ultra-wide, up to 3.5-30V, and it can work at 5V, 9V, 12V, 24V, etc., without voltage regulation.The power supply has reverse connection protection, and it will not burn if connected reversely.The displays all use bright LED digital tubes, the display effect is super dazzling.It is manufactured with fully automatic technology and exquisite workmanship.Parameter:Working current:Less than 20mA, generally 5-15mAMeasuring range: 0.00V-100.0VPower supply range: 3.5-30VMaximum input: DC100VAllowable error: 1%Refresh speed: about 500mS/onceDisplay mode: three-digit 0.56" LED digital tubeDisplay color: red, green, bluewhiteLead length: 15cmWorking temperature: -10~65Dimensions: 48 x 29 x 22 mm