Đồng Hồ Đo Dòng Điện 2 Chiều Tlms 90v 0-500a Màn Hình Lcd

Features: 
Two-way Current Measurement--the multimeter can automatically identify and detect current in dual direction without changing the wiring direction, when used for monitoring charging and discharging.
Clear Display--the main parameters such as voltage, current, capacity, etc. are all displayed in one interface, which is convenient for observation.
Power Off Storage--it enables to store AH value when the power supply is cut off, convenient for subsequent view.
Time & AH Reset Function--The value of time and AH is capable of being cleared to zero, ensuring no influence for next usage.
Other
Features--calibration function, automatically/manually switch off LCD screen, with output control button to enable/disable output (requires a relay).
Safety Protection--various protection functions include over-voltage protection, over-current protection, over-power protection, over-charged protection, time limitation, etc.

Specifications: 
Material: electronic material
Type: 0-100A, 0-200A, 0-300A, 0-500A (Optional)
Current measurement range: 0.1A
Display resolution: own power supply 12-90V, external power supply 0-90V
Current accuracy: ±3%±5 word
Voltage accuracy: ±2%±5 word
Display resolution: 0.01V (voltage)
                               0.01AH (capacity)
                               1min (time)
Measuring rate: 5 times/second
Protection type and set: OVP 0.01V~90V
                                        OPP 0.01W~9.99KW
                                        LOP 0.01V~90V
                                        OCP 0.1~100A
                                        OAH 0.01AH~9999AH
                                        OFT 1min~99hour59min
Item weight: 
0-100A: 178g / 6.27oz
0-200A: 180g / 6.34oz
0-300A: 250g / 8.81oz
0-500A: 296g / 10.44oz
Package weight: 
0-100A: 182g / 6.41oz
0-200A: 188g / 6.63oz
0-300A: 255g / 8.99oz
0-500A: 301g / 10.61oz
Package size: 12*12*5cm / 4.72*4.72*1.96in
Note:
Meter only, other accessories are not included.
Due to manual measurement, there may be deviation.
Due to lighting, the picture and material object may slightly differ in color, please in kind prevail. 
Packing List: 
1 * Met