High-performance, hand-held stroboscopes for visual inspection

SKF offers a wide range of portable TKRS stroboscopes for visual inspection of running machines in challenging industrial environments. These portable tools provide early detection of abnormalities to help schedule maintenance tasks and reduce additional loads on rotating equipment in order to reach planned performance levels. Designed for ease of use, the four TKRS models offer from 3 to 118 ultra-bright LEDs. Each stroboscope features a large screen and multifunctional selector switch to help you quickly navigate to the correct menu. Brightness and performance levels are adjustable. 

General benefits of TKRS series:
  • Intuitive operation for fast and easy inspection jobs
  • Ergonomic and robust design for portable usage in industrial environments
  • Bright LEDs with long lifetime and continuous operation
  • Tripod mount for stationary inspection
Applications and industries:
  • General industry – Inspection of fans, gears, belts, chains, couplings, shafts, etc.
  • Paper – Quality control 
  • Textile – Setup/Inspection of production processes, especially spindles and weaving patterns
  • Printing – Quality control
  • Test equipment – Analysis of materials and components during fast movements, including component behavior under vibration or resonance frequency tests


Stroboscope TKRS 11
  • Quick speed selection with rotary button
  • Black and white LCD display
  • Three ultra-bright LEDs
Product photos:


Stroboscope TKRS 21
  • High luminescence with seven ultra-bright LEDs
  • Multi-line backlit TFT
Product photos:


Stroboscope TKRS 31
  • Built-in laser tachometer with flash synchronization
  • Pro-mode with additional features like slow motion phase shift
  • Trigger input and output with signal modification
Product photos:


Stroboscope TKRS 41
  • Extreme luminescence with 118 ultra-bright LEDs
  • Portable operation with built-in rechargeable battery
  • Continuous operation for long term inspection with power adapter
  • Flash synchronization from laser tachometer or trigger input
Product photos:
  • Technical data TKRS 11
    DesignationTKRS 11
    Light power>2 000 Lux at 3°
    flash duration and 0,3 m (12 in.) distance
    Brightness (flash duration)adjustable, 0,2°–5,0°
    Accuracy ±0,02% (±1 digit / ±0,025 µs) whichever is greater
    Laser speed measurementNo
    Phase shiftYes
    Run time 5:30 h @ 1° (100% display brightness)
    ca. 7:45 h @ 0,2° (20% display brightness)
    DisplayBlack and White LCD
    Power source3 x AA batteries (included)
    Instrument dimensions  225 × 78 × 50 mm (8.9 x 3 x 2 in.)
    Instrument weight (incl. batteries)0,29 kg (0.64 lb)
    Case dimensions260 x 180 x 85 mm (10.2 x 7.1 x 3.3 in.)
    Total weight (case + instrument)0,78 kg (1.7 lb)
  • Technical data TKRS 21
  • Technical data TKRS 31
  • Technical data TKRS 41
  • Spare parts
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