DUSPOL digital. Digital True RMS voltage tester. Suitable for electrical engineering, industry, maintenance, service (troubleshooting), photovoltaic/wind power plants and hybrid vehicle technology. Test type 2-pole. Backlight of the LC display. Voltage display LED/LCD. Voltage measuring range 1 V - 1000 V AC/ 1200 V DC. Voltage display from 50 V even with empty batteries. True RMS true effective value measuring method. Phase rotation indicator yes, green LED. Continuity test yes. Continuity indicator optical/acoustic yellow LED/buzzer. Continuity test range 0 kOhm - 100 kOhm. Resistance measuring range 0.1 kOhm - 300 kOhm LCD. Resistance measurement 100 Ohm. Frequency measurement 1 Hz - 1000 Hz LCD. Diode test yes, LCD. Polarity display yes, LCD. Single-pole phase display yes, red LED. Non-contact voltage detection yes, flashing yellow LED. Direct display without pressing a push button, high-resistance test. Load connection via push button, low-resistance test. Intentional triggering of the RCD/FI circuit breaker. Vibration alarm in the test handle. Measuring point illumination yes. Internal base load yes. Load can be switched on yes. Can be used in precipitation yes, protection class IP 65 dust-tight, jet-proof. Robust housing design with rubberized grip surface. Tested and approved according to DIN EN 61243-3, VDE 0682-401:2015. Measuring circuit category Cat IV. Max. voltage measuring circuit category 600 V. Measuring circuit category Cat III. Max. voltage measuring circuit category 1000 V. Length 260 mm. Blade length 15 mm. Blade width 2 mm. Power supply with and without battery. Includes 2 x 1.5 V Micro/ AAA/ LR03 battery, measuring tip protection.