Benning CM E1 True RMS earth clamp meter. For earth loop resistance and leakage current measurements. Digital display. 4-digit LCD display (9999 points). Earth loop resistance measurement. Earth loop resistance measuring range 0.025 Ohm - 1500 Ohm. Earth loop resistance measurement RE on multiple earthed earthing systems. Easy to use, no need to disconnect the earth electrode or set earth spikes and probes. Adjustable upper and lower alarm limits. Optical and acoustic alarm function if earth resistance is too high. Automatic calibration during start-up. Reference resistance loop for self-monitoring. Current measuring range/AC 0.0003 - 35 A. Current type alternating current. Measurement of leakage, leakage and load currents from 0.3 mA - 35 A using the TRUE RMS measuring method. True effective value measurement (TRMS) yes. Measuring range selection automatic. Automatic switch-off. Automatic battery undervoltage display. Instantaneous value memory hold. Internal memory. Data logger REC for 116 measured values. Clamp opening 38 mm. Dimensions: 276 x 100 x 47 mm. Measuring circuit category Cat III. Max. voltage measuring circuit category 300 V. Includes robust protective case, reference resistance loop, 1 x 9 V block/ 6LR61.