• measurement of insulating resistance and calculation of the resulting leakage current
• testing voltages of 50 V, 100 V, 250 V, 500 V and 1000 V
• selectable limiting values for ISO measurement, green LED for “PASS”, red LED for testing voltage/external voltage
• resistance measurement with a testing current of 200 mA for testing protective conductor connections
• measurement of polarization index (PI) and dielectric absorption rate (DAR)
• switchable probe tip for triggering the measuring process
• internal memory for 100 measuring values per measuring function
• TRUE RMS voltage measurement with low-pass filter
• including case, switchable probe tip, silicone measuring leads, magnetic hook, alligator clips, rubber protective frame and batteries

• measurement of the protective conductor line and of the equipotential bonding line with a testing current of 200 mA
• measurement of the insulation resistance with testing voltages of 100 V, 250 V, 500 V and 1000 V
• line impedance and loop impedance measurement (optional without tripping of the RCD) with calculation of the shortcircuit current (PFC/PSC)
• complete testing of RCDs with nominal fault currents of 10/30/100/300/500/1000 mA
• measurement of contact voltage (without tripping), tripping time and tripping current (ramp test) of residual current operated device (RCD)
• phase-sequence testing in three-phase mains
• voltage measurement up to 500 V and online voltage monitoring

in addition to the BENNING IT 110 :
• testing of universal current-sensitive RCDs of type B
• current measurement (TRUE RMS) by means of current clamp adapter (optional)
• illumination measurement by means of lux sensor (optional)
• earthing measurement by means of three-wire measuring method (optionally with earthing set)
• integrated measured value memory for 500 measurements
• USB and RS 232 interface
• BENNING PC-Win IT 120 B software included in delivery

• measured value memory covering four levels: object/ block/ fuse/ measuring point
• bidirectional interfaces (USB / RS 232)
• upload of installation structures and download of measured values
• integrated real-time clock (measured value with date/ time)
• unambiguous „PASS“ / „FAIL“ indication by means of green/ red LED on the tester and on the switchable „Commander“ probe tip
• „Commander“ probe tip with „TEST“ and „MEM“ key as well as bright LED measuring point illumination
• connection for barcode scanner for identifying the measuring point and renaming the storage location
• help function with connecting diagram
• graphic display with background lighting
• power supply by means of six NiMH storage batteries (AA)
• device with integrated storage battery charging function
• delivery including case, storage batteries, measuring leads, charging cable, switchable „Commander“ probe tip, PC software and calibration recor