Ruideng 0.28 Inch Mini Waterproof Volt Meterr 3.5-30v Digital Voltage Tester Meter

Feature: Performance: Waterproof Dimensions: 27 x 15 x 18mm (including fixing flange size) Range: DC3.50-30.0V, 2-line (with reverse polarity protection) Display: Three digit 0.28-inch LED digital tube Weight: 10 g Display color: Red (R) blue (B) green (G) yellow (Y) Refresh rate: About 1s / times Accuracy: 1% (+/- 1 word) Working temperature: -10 ~ 65 Supply voltage: DC3.50-30.0V (collinear measurement) Package inclulded: 1 x 0.28 Inch Mini Waterproof Voltmeter