ขาย เครื่องทดสอบแรงดันไฟฟ้าโวลต์มิเตอร์แอมมิเตอร์จอlcd usb 5 v 12v 24v ราคาที่ดีที่สุด

Digital LCD USB Voltmeter Ammeter Power Capacity Detector Tester Voltage Current Meter Charger 5V 12V 24V Description: Size:60x24x14（mm） Weight:0.10g Input Voltage: 3V - 30V Input current : 0 - 5.1A Cumulative capacity range: 0-99999 mah precision: 0.001 Ah Charge accumulation scope: 0-999999 MWH precision: 0.001 Wh Cumulative power range: 0-299.999W precision: 0.001W Timing the maximum range: 0-999 hours 59 minute 59 seconds precision: 1 second Parameters that you can test: Voltage of battery. Current of battery, discharge capacity of battery,Quantity of electric charge,power of battery,timing. Communication function: Yes Parameters adjusting function :Yes. Equipment for parameters adjustment: One electronic load,one constant current source. Voltage of constant current source should be set to 8.5V There are 3A, 2A, 1A and 0.3A models for current adjusting. Color:Black Package: 1 x LCD USB Voltage Current Detector Mobile Power USB Charger Tester Meter