Features :
Voltage meter range: 0.00-9.99-99.9V
Current meter range:0-1.00A or 9.99A
Internal resistance of the voltmeter:400KΩ
Internal resistance of the ammeter:0.0065Ω
Working voltage: DC5-28V
Measurement accuracy: 0.4% *3
Operating temperatur e : -10℃~60℃
Working current: <20mA
Refresh rate: 3 times/second
The net weight: 22g
Display mode:3 bit 0.28 inch LED
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