1 Gossen Metrawatt tester, model Profitest Mxtra IQ. measuring and testing equipment for testing the effectiveness of protective measures; on fixed electrical installations after completion. Repair, and extension on the occasion of a retest (DGUV requirement 3). The device is fault-free, function is given. Condition: used, Optical condition: good, there are slight dirt and scratches on the top and bottom of the device. The test device is equipped with a power supply and test tips. A CE marking is available on the test device, power supply and test tips. No original packaging.   Technical features: Measuring category : 600V CAT III / 300 V CAT IV Wide range measuring device for all AC and three-phase networks with voltages from 65 to 500 V and frequencies from 15,4 to 420 Hz. Grinding and grid impedance measurement with DC premagnetization. Testing of fault current protection device with special RCD protection switches (selective S, SRCDs, PRCDs, Schukomat, Sidos, Type G/R , AC ,A ,F, B, B+, EV. MI ) Checking error current. USB interface.