50A 100A 200A 400A STN LCD Hall Coulomb Meter Counter Voltage Current Capacity Power Indicator Display eBike Car Isolation  Feature: 1. Using high-quality materials, the quality is guaranteed 2. Simple installation, easy to use 3. The Hall measurement is an isolated measurement, which will not destroy the original original circuit, which is N times safer and more reliable than the general shunt coulomb counter. 4. Exquisite and beautiful appearance 5. Small stature, big use, wide range of applications Specifications: Current measurement range: 50A/100A/200A/400A Current resolution: 0.1A Supply voltage range: DC5~90V Voltage measurement range: DC0~300V Voltage Resolution: 0.1V Capacity measurement range: 0~999AH Power measurement range: 0~999KW Refresh speed: 0.5S to refresh the display information once Working current: When the backlight is on: 10MA When the backlight is off: 4MA Frequently Asked Questions: 1. Is this watch clear under the sun? A: This watch is an STN LCD screen with backlight, which is clearly visible at night or under direct sunlight during the day. 2. Do you need an extension cord? A: The standard sensor extension cable is 15CM in length 3. Does this table already contain sensors? A: This is already included: STN LCD head + Hall sensor + 15CM sensor cable + 15CM power cable. 4. Does this meter use two-wire or three-wire wiring? Answer: When the measured voltage of the meter is within DC5~90V, connect the red and yellow wires together as the positive lead to the positive pole of the power supply, and the black lead to the negative pole, which is a two-wire connection. When the measured voltage exceeds the range of DC5~90V, the three-wire wiring is used, so that the measurement voltage range is wider, and the ultra-wide voltage between DC0~300V can be measured. Package Included: STN LCD head*1 Hall sensor*1 15CM sensor cable*1 15CM power cord*1