Digital Sound Level Meter provides analog bargraph with 50dB range. Its feature includes ±2dB accuracy with 0.1dB resolution, AC analog output, record max/min values, utilizes 0.5″(12.7mm) electret condenser microphone and 40 to 130dB measuring range.
Digital stroboscope is ideal for inspecting and measuring the speed of moving gears, fans, centrifuges, pumps, motors and other equipment used in general industrial maintenance, production, quality control and laboratories. The crystal-controlled circuitry eliminates drift and allows readings accurate to 0.1 rpm.