Borescopes, fiberscopes & videoscopes
FireSight & Pultz high temperature CCTV video systems for boilers, furnaces, kilns & incinerators (up to 3500ºF)
Hand-Held Non-Contact Thermometers
Heitronics accurate non-contact infrared thermometers with long term stability
Ultrasonic wall thickness gauges
Holiday (porosity) detectors
Coating (paint) thickness gauges
Wire terminal pull testers
Portable Stroboscopes
Stroboscopes Main Menu
PK2 Pocket Strobe
DT-721 & DT-725 Low Cost Digital Stroboscopes
DT-311A, DT-315A & DT-315AEB Digital Stroboscopes
DT-311J & DT-315P Splash-Proof Stroboscopes
DT-314 External Trigger Digital Stroboscope
DS-12V Longest Battery-Life Portable Stroboscope
DS-303 AC-Powered Portable Stroboscope

Digital Tachometer Stroboscope

General Information

(115 VAC or 230 VAC)

(Internal battery, 12 V DC or AC Adapter)
Unit can be operated on AC power, using the supplied AC-Adapter, while the battery is being recharged

(External battery pack or 12 VDC)
This version permits the end-user to always have a spare, fully-charged battery for uninterrupted service

54-33,000 RPM/FPM

Portable, highly stable and accurate, industrial-quality tools for non-contact RPM measurement, inspection and observation of moving parts by "freezing" or "slowing down" the action.

DT-315A stroboscope with internal battery, 12 VDC or AC adapter

DT-315AEB stroboscope with  external battery pack or 12 VDC

Features of the DT-311, DT-315A & DT-315AEB stroboscopes:

Highest accuracy and most stable flash rate

Easy-to-read LED display

Easy-to-operate controls

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

Flash rate control

Instant double and half-rate flash selection for error-free reading



Protective rubber caps for the DT-300 series of stroboscopes

Swingarm for the DT-300 stroboscope



Flash Range 100-30,000 FPM
  Internal Mode:
  External Mode:

0.01% of reading
0.01% or 1 digit
Drift 0.01% per degree C
Update Time
  Internal Mode:
  External Mode:

0.2 seconds
0.01% or 1 digit
Output Signal Synchronous, 400 s pulse,
0 to approx. 12 V DC
1000 ohms impedance
Display & Rate Divide or multiply by 2, selectable
Low Battery Indicator Display shows L's
Operating Temperature 32-104 (0-40C)
Display 5 digits, 10 mm high, red LED
Flashtube Xenon, 10 W maximum
Flash Duration 10-30 s
Sensor Power Supply 12 VDC 0.5V (50ma)
Phase Shift 0 - 359 with 1 resolution or
0 - 333 ms from 200 - 3,000 FPM
Input Signal Req'd for
External Triggering
5-24 V P-P (not to exceed 35 V to GND)
pulse width 50 s minimum, rise time less than 0.2 ms
Input Impedance 10,000 ohms
Model Power Requirements
DT-311 115 V or 230 V AC (specify), 50/60 Hz, 30 VA
DT-315 115 V AC or 230 V AC Adapter or one (1) hour, internal, rechargeable 12 V battery or external 12 V DC
DT-315EB Three (3) hour, external, rechareable 12 V DC Power Pack or external 12 V DC
Model Access.
Batt Life
Full Charge
Dimensions Weight
DT-311 - N/A N/A 4.7 x 4.7 x7.2"
(120 x 120 x 183mm)
2.6 lbs.
(1.2 kg)
DT-315 Internal battery, 12 V DC with 115 V AC or 230 V
AC Adapter Charger
1 hour at
high flash
16 hours 4.7 x 5.6 x 9.7"
(120 x 141 x 248 mm)
4.4 lbs.
(2 kg)
DT-315EB External battery pack, 12 V DC, with 115 V AC
or 230 V AC Charger &
carrying case
3 hour at
high flash
16 hours 4.7 x 4.7 x7.2"
(120 x 120 x 183mm)
4.5 lbs.
(2 kg)
Diagram of the DT-300 series stroboscope


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