5 Best
Drok Auto Batteries
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Product Highlights
- 👍when the dc power supply is powered the power supply is preferred; when the dc power supply is powerless the battery is automatically switched.
- 👍kindly refer the product description before buying the product.
- 👍power failure automatic switching battery controller board dc 12v48v emergency automatic
- 👍the indicator lights up when the power adapter is powered on and turns off when the battery is powered.
- ?👜package includes:1 x power failure automatic switching module
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Product Highlights
- Has very stable output, input range is dc 4~40v and output range is dc 1.25~37v, please make sure the input voltage should be higher than output voltage at least 1v. can be used for many electronic projects.
- With input and output voltage measurement error calibration function; wiring terminals require no soldering iron and create convenient usage.
- Analog control: using a mini screwdriver to increase or decrease output voltage by adjusting the screw, clockwise to step up voltage and counterclockwise to step down voltage.
- Press the button next to voltmeter to test input voltage or output voltage. green led lights on when testing output voltage; red led lights on when testing input voltage.
- Press the button for 1 to 4 seconds, voltmeter would be shut off when releasing your hands; the voltmeter is very accurate.
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Product Highlights
- Led display --- color 0.28'' led display, two kinds of color make it clear and convenient.
- Light and small --- this item has 22g net weight with two simple wire to connect. light&small but
- Parameter --- measuring range: 8-100v; voltage resolution: 0.1v; monitoring frequency: 200ms per time; install hole: 1.81x1.06inch / 46x27mm
- Auto identification --- this meter can auto identify 12-84v lead acid battery. 【note】this item can only be used for lead acid battery.
- Long term warranty --- since you buy this item, we provide one year long term warranty. you can get refund or replacement.
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