ولت متر بدون قاب قرمز 0.28 اینچی:

Specification:

2-wire detection voltage: 0.0 ~ 30V (with reverse polarity protection)
Line 3 Operating voltage: 4.0 ~ 30V (with reverse polarity protection)
3-wire detection voltage: 0.0 ~ 100V

Operating Current: <20mA
Display: 0.28 “LED, red
Dimensions: 31 × 12 × 9mm (length width Х Х high)
Installation hole: 23 × 10 mm
Measuring rate: ≥ 200mS / times
Accuracy: 1% of error (+ / -1 words)