Extech 461950 Panel Mount Tachometer

The 461950 is a 1/8 DIN Panel Tachometer. Measure rotational motor speed, moving fans, pumps, gears, propeller devices. Choice of 2 sensor pickup types: Proximity sensor-0.1 in. (3 mm) target distance, range up to 36,000rpm (600Hz); Photoelectric sensor-0.4 in. (10 mm) target distance, range up to 6,000rpm (100Hz). 1/8 DIN size. Powered by 115/230VAC 50/60Hz.

• Measure rpm from 5 to 99,990rpm with microprocessor quartz crystal accuracy of 0.05%
• Large 4 digit LED display updates 1/sec (rpm<60)
• Resolution: 0.1rpm (5 to 1000rpm), 1rpm (1000 to 999rpm), 10rpm (10,000rpm to 99,990rpm)
• Unique design permits rpm measurements of a one hole gear or disk eliminating the need for special gears
• A pulse is measured when a ferrous object (stud) passes by sensor
• Optional proximity and photo sensors

• rpm: 5 to 99,990rpm
• Basic accuracy: ±0.05%
• Resolution: 0.1rpm (5 to 1000rpm), 1rpm (1000 to 9999rpm), 10rpm (10,000rpm to 99,990rpm)
• Power: 115V or 230V AC; 50/60Hz
• Dimensions/Weight: Bezel 3.8x1.9x2.4" (96x48x60mm); Panel cutout 3.6x1.8" (92x45mm) Meter 3.6x3.5x1.7" (92x90x42mm)/ 14oz (397g)
• Sampling Time: 1sec>60rpm, >1sec>10 to 60rpm
• Dimensions: 4.9"x2"x1.3" (124x50x33mm)
• Weight: 4oz (114g)