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DT-311A Digital Stroboscope

Flash Range: 40-35,000 RPM/FPM

The DT-311A-2 (DT-311N) is a portable, highly stable and accurate, industrial-quality stroboscope. Suitable for non-contact RPM measurement, inspection and observation of moving parts by "freezing" or "slowing down" movement.


  • Highest accuracy and most stable flash rate
  • Easy-to-operate controls
  • Easy-to-read LED display
  • Detachable pistol-grip handle
  • Provides 12 V DC power for external sensors
  • Accepts external trigger input and provides synchronizing pulse output
  • Phase shift for best view and flash photography
  • Instant double and half-rate flash selection for error-free reading
  • Flash rate control


Light Output (LUX) vs Distance

at 30 cm Distance, 6000 flashes/min (FPM)

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Flash Range
40-35,000 FPM
Internal Mode: ±0.01% of reading
External Mode: ±0.01% or ± 1 digit
±0.01% per degree C
Update Time
Internal Mode: 0.2 seconds
External Mode: ±0.01% or ± 1 digit
Input Signal
LO level: 0-0.4 VDC
HI level: 2.5 - 12 VDC -- or open collector (npn)
pulse width 50us min
Output Signal
Synchronous, 400 µs pulse, 0 to approx. ± 12 V DC 1000 ohms impedance
Display & Rate
Divide or multiply by 2, selectable
Operating Temperature
5 digits, 10 mm high, red LED
Xenon, 10 W maximum
Flash Duration
10-30 µs
Sensor Power Supply
12 VDC ± 0.5V (50ma)
Power Requirements
115 V or 230 V AC (specify), 50/60 Hz, 30 VA
Phase Shift
0 - 359° with 1° resolution or
0 - 333 ms from 200 - 3,000 FPM
Input Impedance
10,000 ohms
1.2 kg (2.6 lbs.)
120 x 120 x 183mm
(4.7 x 4.7 x7.2")
1 year

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Product name
DT-311A-2 (DT-311N) Stroboscope
€ 627,00 


Product name
DT-FLASH Spare Flash Tube DT-311A / DT-315A
€ 58,00 
DT-CAPS - Protective end caps for DT series
€ 120,00 
DT-300CC Carrying Case for DT-300 Series Strobes
€ 138,00 
Cert. Strobe - Calibration Inspection & Certificate Stroboscope
€ 99,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available , preorder 1-2 weeks , special order, request
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