Stroboscope Model K4020
- Simply aim & synchronize the strobe's flash rate (fpm) with the speed (rpm) of the object
- Direct reading of RPMs
- Exclusive one-chip micro- computer LSI circuit & crystal control time-base assures accuracy of ±1%
- Duty cycles from 5 to 30 minutes (depending on RPM range)
- Tripod mountable AC operated with 6-foot power cord
Freeze motion and measure totational speed without contact.

| K4020 | |
| Flash Range | 100 to 100,000 fpm/rpm |
| Speed Range | - |
| Resolution | 1 fpm/rpm |
| Accuracy | ±1%: 100-5000 fpm; ±0.05%: [greater equal] 5000 fpm |
| Phase Range | - |
| Resolution | - |
| Time Base | Quartz crystal |
| Sampling Time | 1 second |
| Display | 4-digit LED, 0.3" high |
| Flash Tube | - |
| Flash Duration | - |
| Power Supply | 110 VAC, 50/60Hz |
| Dimensions | 8.3" x 4.8" x 4.8"/210 x 120 x 120 mm |
| Weight | 2.2 lb/1 kg |




