Automotive multimeter MS8239D Mastech 13-2089

The MS 8239D portable multimeter is a compact multimeter suitable for both standard electrical work and automotive electrical systems, featuring two additional functions: DWELL (engine rotation frequency) and TACH (contact closed angle). The MS8239D multimeter features both automatic and manual measurement range selection modes. The multimeter includes an auto-off function and can hold current and maximum measured values on the display. Technical specifications: Resolution: 2000 counts. DC voltage: 200 mV/2 V/20 V/200 V/600 V ±(0.7%+2). AC voltage: 200 mV/2 V/20 V/200 V ±(0.8%+3), 600 V ±(1.0%+3). DC current: 2 A/10 A ±(2.0%+10). AC current: 2 A/10 A ±(3.0%+10). Resistance: 200 Ohm/2 kOhm/20 kOhm/200 kOhm/2 MOhm ±(1.0%+1), 20 MOhm ±(1.0%+5). Engine rotation speed (tachometer): 4, 6, 8 cylinders ±3?. Contact closed angle (Engine ignition timing angle): 4, 6, 8 cylinders ±(3.0%+3). Diode test: forward current approx. 1 mA, reverse voltage: approx. 1.5 V. Update time: approx. 0.4 seconds. Auto-off: approximately after 15 minutes. Power supply: 1.5V x 2 batteries, AAA type. Dimensions: 150x74x42 mm. Weight: approx. 250 g (with batteries). Package contents: Multimeter, probes, batteries, instruction manual