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DT-900 Digital Portable Stroboscope

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The DT-900 is no longer available. For a replacement we recommend the PK2X or DS-2000LED-LSR;

PK2X Xenon Strobe
DS-2000LED-LSR LED Strobe

30 - 12,500 RPM/FPM

The DT-900 Portable Strobe is designed for non-contact RPM measurements and inspecting moving parts by "freezing" or "slowing down" the action. Requiring only one hand to operate, yet delivers performance comparable to much larger and heavier "pistol-grip" type models.

The DT-900 is ideal for industrial, laboratory, R&D and academic environments. Its small size and excellent performance provide superior convenience and value - at a reasonable price.

The DT-900 Techstrobe series is offered in various configurations to fit the exact needs of the user. Models include DT-900-U, DT-900-TR , DT-900-UT, DT-900-PR and DT-900-UP. Refer to the BUY NOW section below for complete details and prices.

Also known as SKF TMRS and SMS-400B
NSN 6220-01-572-0758 (DT-900)


  • Easy to use with just one hand.
  • The changeable NiMH battery powers the stroboscope 1-2,5 hours.
  • "LOW BAT"appears in the display if the energy becomes less.
  • NIST-Traceable calibration certificate & test report optionally available
  • Resolution of 0.1 Flashes per minute.
  • Universal Battery Charger is supplied on "-U", "-UT" and "-UP" versions for use anywhere Worldwide on 100-265 VAC


Flash Range30 - 12,500 fpm
Accuracy± 0.01%
Resolution0.1 fpm
Operation modesFlashes with internal trigger
Flashes with external trigger Tachometer
Display8 digits, 15 mm high
FlashtubeXenon 10 W / white 6500 K
Flash Duration10 - 15 µs / approx. 400 lux
Flash life100 mill. flashes
Phase Adjustment5° per increment
Input signal0.25 - 983.3 Hz
Output signal0.667 - 108.333 Hz
External trigger5 V TTL Signal
Power100-240 V DC quick-change battery
Tripod mounting1/4 - 20unc, length 8 mm
Weight1.4lb (620 g)
Temperature range50 - 95 °F (10 - 35 °C)
Dimensions9.6" x 2.6" x 3.1" (24.5 cm x 6.5 cm x 8 cm)
Warranty1 years
Country of OriginCanada


Buy Now

Item Description Price
Strobe with (1) battery and Universal battery charger. WITHOUT carrying case
Strobe with (1) battery and Universal battery charger. WITH carrying case
Strobe Kit with (1) battery, (1) spare flash tube, holster & Universal battery charger in carrying case
Strobe kit with (2) batteries, (1) spare flashtube, holster & Universal battery charger in carrying case
DT-900-TR is no longer available, Purchase DT-900-UT
DT-900-PR is no longer available, Purchase DT-900-UP
Spare battery for DT-900
Spare battery for DT-900 (Renewed with slight cosmetic blemishes) - Please contact us for pricing and availability.
Spare Flash Tube for DT-900 - FLASHTUBE900, FT-900, SMS-908, SMS-400B
Universal Battery Charger for DT-900 100-240V - CH-900 - Please contact us for pricing and availability.
Spare Carrying Case for DT-900
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.