?This meter can measure voltage£¬ current£¬ power£¬ charging capacity and time£¬ etc in both directions. LCD display£¬ several parameters displayed on the screen at the same time£¬ is convenient for readings. At the same time£¬ it also has many functions£¬ such as over-voltage protection£¬ over-current protection£¬ over-charge protection£¬ etc.? <br> <br> <strong>Features:</strong> <br> Can measure varied physical quantities£¬ such as voltage£¬ current£¬ power£¬ charging capacity and time£¬ etc. <br> Bi-directional measurement of the current£¬ no need to change the wiring direction. <br> Wireless data transmission between the meter and expansion board£¬ convenient for use. <br> With memory function if powered off£¬ can memorize the last AH data. <br> Users can set parameters to achieve over-voltage protection£¬ over-current protection£¬ over power protection£¬ overcharge protection£¬ etc. <br> LCD display£¬ several parameters displayed on the screen at the same time£¬ easy to read. <br> Suitable for monitoring the output voltage and current£¬ as well as the battery charge and discharge applications. <br> Small size£¬ light weight£¬ convenient to carry. <br> <br> <strong>Note:</strong> <br> The meter should be powered by 5-24V power supply whether self-powered or powered by external power supply. <br> <br> <strong>Specifications:</strong> <br> Input Voltage: 10-120V(self-powered)£¬ 0-120V(external power supply) <br> Input/Output Current: 0-100A / 0-200A (Optional) <br> Voltage Resolution: 0.01V <br> Current Resolution: 0.1A <br> Capacity Resolution: 0.01AH <br> Time Resolution: 0.01H <br> Display: LCD display <br> Measuring Rate: 5 times/s <br> Communication Distance: 10m for single group in open area <br> OVP: 0.01-120V <br> LVP: 0.01-120V <br> OCP: 0.01-100A <br> OAH: 0.01-999AH <br> OFT: 0.01-99.9H <br> Meter Power Supply: 5-24V <br> Meter Size: 7.8 * 4.2 * 2.6cm / 3.1 * 1.7 * 1in <br> Meter Weight: 35g / 1.26oz <br> Expansion Board Size: 18.6 * 4 * 2cm / 7.3 * 1.6 * 0.8in <br> Expansion Board Weight: 171g / 6.03oz <br> Package Size: 20 * 13 * 5cm / 7.9 * 5.1 * 2in <br> Package Weight: 222g / 7.84oz <br> <br> <strong>Package List:</strong> <br> 1 * Current Meter <br> 1 * Power Expansion Board <br><br>