DC 0-100V 10A Digital Voltmeter Ammeter Dual LED Display Voltage Detector

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