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GrgoWheel        PRE002-PEM100    Wheel Diameter     12 " (319.7mm)                    -Material     ABS Plastic/Friction Resistant PU Tyre Leather    Handle     -Zeroing     Yes                    -Turnable     Yes    Display     -Zeroing     Yes                    -Smallest distance     10cm                    -Biggest distance     999.99m     Extracted     1026 mm     Contracted     435 mm     Storage...

Easy to see and be used. Big digital reading. Water resistant. 

Super High Resolution DC 1mA, AC 0.1mA One Touch Zero for DCA True RMS

High Resolution DC 1mA, AC 0.1mA Connect to an Oscilloscopes to observe Current Waveform Connect to Chart Recorder/Datalogger/ DMM to Record Current Data

DC/AC 2000A Cable f 55mm, Bus Bar 72mm(D) x 22mm(W) True RMS (2000) Average Sensing (2003) DCA One Touch Zero Auto Range A, V, W Continuity Max/Min/Hold Relative Measurement

AC+DC 1200KW DC/AC 2000A & ANALOG OUTPUT Cable F 55mm True RMS Temperature ( ℃ or ℉ ) 0.1 ℃ / ℉ Resolution

I-V Curve Test for Solar Cell. Maximum Solar Power (Pmax) Search by Auto-scan (60V, 6A) Maximum Voltage (Vmaxp) at Pmax Maximum Current (Imaxp) at Pmax Voltage at open circuit (Vopen) Current at short circuit (Ishort) I-V curve with cursor Optional printer (model: 300XP) to hardcopy I-V curve Calculation of Efficiency (%) Manual single point test

●I-V curve test for solar system ●Continuous monitoring output power, watt hour, efficiency of solar system and inverter ●Max. solar system power (Pmax) search by Auto-scan: 1000V, 12A ●Max. voltage (Vmaxp) and Max. current (Imaxp) at Pmax ●Voltage at open circuit (Vopen), Current at short circuit (Ishort) ●Temperature measurement of solar panels, Irradiance measurement of sun light, series resistance (Rs) calculation of solar panels ●Real time data logging, built-in calendar clock ●Efficiency (%) calculation of solar panels ●Conversion of I-V curve under OPC to data under standard test condition (STC) based upon IEC standard ●Provide Operating Condition (OPC) and Standard Test Condition (STC) test reports for   verification of solar panel performance (OK, or NO OK) ●With optional power clamps (SOLAR 15 and SOLAR 21), measure/record DC power output of solar system and AC power output of inverter (1 phase or balanced 3 phase); calculate efficiency of DC to AC power conversion and max. power ●Parameter setting of solar panels; setting for number of solar panels in a string ●Rechargeable lithium battery, low battery warning...