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DT-365 High-Intensity, Battery Powered LED Stroboscope

Made in Japan
Click images to enlarge.
Model DT-365E (6 LEDs)

High-Intensity, Battery Powered LED Stroboscopes. The DT-365 and DT-365E High-Intensity, Battery-Powered LED Stroboscopes are velocity analyzing and measuring devices that are ideal for machinery process inspection.

The DT-365 and DT-365E Stroboscopes are capable of flashing their LED lights in a synchronous frequency to the operating machinery, creating the illusion of viewing slowed or frozen images. Utilizing this phenomenon of slowing or stopping the motion with the adjusted flash rate of its LED lights, machine parts and processes may be inspected for defects, aiding in preventative maintenance programs. This LED technology extends operation due to the low energy requirement of the light diodes compared with xenon lit stroboscopes. Proper operation is assured as concerns of light failure during usage, common with xenon bulbs, is eliminated. The light output (Lux) of the LED’s is far brighter than xenon powered stroboscopes with the DT-365 outshining all comparable stroboscopes on the market from its array of 18 LED’s and 6 LED’s for the DT-365E.

The operation panel is a vibrant red LED display that is ideal for viewing in dark locations. The simple to use keypad plus rate adjustment dial aids in making quick changes of the flash rate to coincide with changes in the speed of your process. The dial allows fine-tune altering of the flash rate while the x2/÷2 keys enable large spanning over the entire flash range.

The DT-365 & DT-365E have the added feature of modifying the flash duration or on time which aids in picture clarity often necessary in printing processes. The phase shift function is ideal for rotating equipment where the user needs to change the focus on different blades, gears, or section of the machinery. These stroboscopes are also capable of being synchronized with an input signal. To complete the system, the DT-365 has a power output to supply an input sensor if desired. The robust aluminum housing is NEMA-4X (IP65) protected allowing usage in harsh plant environments. The DT-365’s array of 18 LED’s allows continuous operation from 2 to 5 hours while the DT-365E’s array of 6 LED’s allows 3 to 8 hours depending on user settings.

Typical applications for the DT-365 and DT-365E are to determine speeds, inspect rotors, meshing gears, motors, textile equipment, printing production lines, conveyors, industrial fans, pump operation, vibration equipment diagnostics and many more.


  • DT-365 uses 18 separate high-intensity LEDs
  • DT-365E uses 6 separate high-intensity LEDs
  • Extraordinary durability with extruded aluminum, NEMA 4X (IP65) construction
  • Bright LED display and simple controls aid in user operation
  • Long Lasting, quick-charge NiMH rechargeable battery provides exceptional usage reliability
  • Phase shift (in degrees of delay time) enables visual analysis of rotating or reciprocating objects through all points of motion/time/angle
  • Flash controller dial permits accurate adjustments to the flash rate
  • LED technology greatly extends operation life and eliminates need to replace burned out bulbs
  • Capable of being synchronized with input signal from sensor or controller


Range FPM (RPM)60 - 120,000; From Input Signal 40 - 35,000
Accuracy±0.02% of reading
Lux Rating (Approx.)6000 FPM & 3.6° (100 µs): Distance 8" (20 cm) 18,400 lx with 10" (250 mm) irradiation dia., Distance 20" (50 cm) 6200 lx with 13.5" (350 mm) irradiation dia.

1500 FPM & 3.6° (400 µs): Distance 8" (20 cm) 15,000 lx with 10" (250 mm) irradiation dia., Distance 20" (50 cm) 6000 lx with 13.5" (350 mm) irradiation dia.
Lamp LifetimeTyp. 50,000 hours. Varies depending on usage.
Display6 digit Red LED
ResolutionInternal Mode 1 FPM. External Mode 0.1 FPM
Flash Duration0.1 to 3.6° (0.14 µsec to 400 µsec)
Phase Shift0 to 999 msec; 0 to 359°
Power Requirement100 to 230 VAC to included AC power adapter
BatteryNiMH battery requires approximate 2.5 hour recharge time
Battery LifeApprox. 2 hrs. with flash duration set to 3.6° & 5 hrs. with duration set to 1.0°
Synchronization Input SignalH level: 2.5 - 12V; L level: 0 - 0.4V
Input Signal Range FPM (RPM)40 - 35,000
Input Signal Flash Delay FPM (RPM)60 - 10,000
Input Signal12V pulse input
Power Supply OutputDC12V 40mA for sensor input
Temperature Limits32 to 95°F (0 to 35°C)
Humidity Limits35 to 85% RH
Protection ClassNEMA 4X (IP65)
Product Weight4.6 lbs (2.1 kg)
Warranty2 years
Included AccessoriesAC power adapter, Input signal connector, flash-light style attachable handle


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Item Description Price
NO LONGER AVAILABLE - DT-365E is the recommended replacement
High Intensity Portable LED (6) Stroboscope with Rechargeable Battery and USA Plug
NIST Traceable Calibration Certificate
Replacement Re-Chargeable Battery for DT-365 LED Strobe - DT-365BAT
IEC C13 to PC Euro Plug, 6ft / 2m Cable
Replacement Battery Charger for DT-365 LED Stroboscope
Flexible swing arm for DT-361, DT-365, DT-365E LED Stroboscopes
SAS-DT360 Mounting base, for use with SAS-360 Flexible Swing Arm
Daisy chain syncing cable for DT-361 and DT-365 stroboscopes with Connectors, 10 ft length
Input/Output Connector for DT-361 & DT-365 Stroboscopes
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.