brand new and high quality Features: Made of high quality material, solid, durable and practical, good performance and long lasting. LCD screen, display information comprehensively and clearly. Configuration of intelligent fan can dissipate the heat effectively and quietly. Load maximum power 150W, max voltage 200V, max current 20A. Over voltage, over current, and over pressure alarm can protect the module from damage effectively. Widely used for testing various batteries, for DC power supply, and charging data lines. Specification: Material: Fiber Glass Board, Electric Components Size: app.15.64 x 9.6 x 14cm/6.16 x 3.78 x 5.51in Color: Yellow and Purple and for Grey Quantity: 1 Set Product Parameter: Input/Output Interface: 100A high current bite screw column Voltage Measurement Range: 0.00V-200V Resolution accuracy: 0.01V Current Measurement Range: 0.00A-20A Resolution accuracy: 0.01A Capacity Accumulation Range: 0-999.999Ah Resolution accuracy: 0.01Ah Power Accumulation Range: 0-9999.9Wh Resolution accuracy: 0.01Wh Power Measurement Range: 0000.00-180 for W Resolution accuracy: 0.01W Impedance Measurement Range: 1-999.9 ohms Resolution accuracy: 0.01 ohms Temperature Measurement Range: 0-99/32-210.2 Resolution accuracy: 1 Timing Maximum Time: 999 hours 59 minutes 59 seconds Resolution accuracy: 1 second Timing Measurement Reminder Setting: countdown 24-hour arbitrary setting Small Current Standby Remind Parameter and Timing: Less than 2W/0.5 hours; Over 0.5W to start timing, for DC 4-30V supplies power to the measurement system Refresh Time: Over 500mS/for time Measurement Rate: About 0.5 times/sec Overvoltage and Overcurrent Setting Alarm Mode: Display warning interface to remind users Overvoltage Reminder Setting Range: 1-200V Low pressure Reminder Setting Range: 0-190V Overcurrent Reminder Setting Range: 0.2-100A Display Type: Micro-power LCD module LCM black font green backlight Chinese and English display Working Temperature: -10 - +60/14 - 140 Working Humidity: 10 - 80 (No glazed frost) Working Pressure: 80 - 106kPa Instruction for Connection and Operation : 1. Open the package, insert the power adapter into the end of the product and supply the power. 2. Anti-clockwise rotate the two current knobs to the lower limit. 3. Connecting the Power Supply under test to the product according to the diagram above, and the current input voltage value will be read out. Keep pressing the for key to reset all data to zero; 4. Slowly clockwise rotate the two current knobs (coarse&fine) to adjust the current to the rating value of the Power Supply(The current should be slowly adjusted, using the fine knob priority, the coarse knob could be only used under large current condition.) 5. When testing the battery, Low voltage discharge limit should be set up, to avoid the possible damage caused by over discharging while discharge capacity test of the battery. Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Electronic Load Tester