REED K4020 Stroboscope, 100-10,000 fpm

 Features:

• Simply aim and synchronize the strobes flash rate (fpm) with the speed (rpm) of the object
• Direct reading of RPMs
• Exclusive one-chip micro-computer LSI circuit and quartz crystal control timebase assures accuracy of ±1%
• 4-digit, 0.3" high LED display
• Duty cycles from 5 to 30 minutes (depending on RPM range)
• Tripod mountable AC operated with 6-foot power cord

Specifications:

• Flash Range: 100 to 100,000 fpm (flashes per minute)
• Resolution: 1 rpm/fpm
• Accuracy: ±1%: 100 to 5000 fpm; ±0.05%: ≥ 5000 fpm
• Sampling Rate: 1/second
• Calibration: Crystal time base and microprocessor circuit, does not necessarily take any external calibration procedure
• Power Supply: 110 VAC, 50/60 Hz
• Dimensions: 8.3 x 4.8 x 4.8"
• Weight: 2.2 lbs