Adash A4950 Stroboskooppi

LED Stroboscope for a Wide Range of Machinery Maintenance Applications

Stroboscope enables to ostensibly stop rotating or generally periodic (reciprocating) motion of a machine. It allows also to find out the speed of rotation or to perform synchronized measurements without having to use reflective markers on the shaft. 

The A4950 stroboscope uses three ultra-bright LEDs with optical system as a source of flashes. The device is equipped with a colour graphic display and 3 operational buttons. Operation is very easy and intuitive. Two standard or rechargeable AA batteries are used for powering. The A4950 stroboscope can be used also as a tachometer by connecting an external speed probe.

Key Features

  • High power LEDs with lens and reflector system
  • Flashing frequency range from 0,5 Hz to 500 Hz (30 RPM to 30 000 RPM)
  • Flash frequency divider and multiplier
  • Control of the flash duration
  • Phase shift or shift by blades function
  • Flashing controlled by internal or external triggering
  • Powering for external laser tacho-probe
  • Trigger output for external instrument (balancer)
  • Torch mode
  • Powered by 2 AA batteries
  • Heavy duty case
  • Tripod mounting plate

Technical Specifications

Light source:

3 XR-E ultra-bright LED

Flash frequency range:

0,5 Hz – 500 Hz (30 RPM – 30 000 RPM)

Flash frequency resolution:

0,01 Hz or 0,1 RPM

Flash duration:

0,5° - 10° of speed frequency

Flash intensity:

approx. 3000 lx (25 Hz/300 mm)

Phase shift:

-180° to +180°

Trigger output pulse:

3,3 V

External trigger input pulse:

1 V - 5 V positive/negative edge

Powering for external tacho:

5 V / 50 mA


colour graphic OLED display, 128 x 128 pixels

Operating time:

20 hours (lithium batteries)

Operating temperature:

from -5 °C to 55 °C


150 x 60 x 35 mm


Tuotenumero A4950

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