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T: 514-354-2511
T: 1 800 463-4363
F: 514-354-6948
Timer and electronic intervalometer Material Testing

Timer and electronic intervalometer

Product Code:

Need more Info? (514) 354-2511 - 1-800-463-4363

  • Reliable and accurate time after time. The 451's automatic reset makes it even quicker and easier.
  • Uses: industrial and time-lapse photography, animal feeding and stimulus, water analysis, centrifuges, sloenoid switching, to name a few.
  • Independent, separately programmable memories control on/off cycles. Use as a single cycle switching timer or in tandem as a continuously recycling intervalometer.
  • Timesetting i easy with 451's rotary switch. Brightness can be adjusted or switched off on the 1/2" high, 2-digit LED display. Left on, it gives a running countdown of the cycling memory.
  • Three time ranges are available: 1-99 minutes, 1-99 seconds, .1-9.9 in tenths of a second.
  • Choose the audio you prefer. One second end of cycle tone; a metronome which beeps once every second throughout the cycle... or no audio.
  • AC power can be switched through an AC outlet and logic level compatible signal through an output jack. The on/off state is the same as the AC outlet.
  • Compact and solid, the 451 measures 3 1/2" x 4" x 8". It's durable; stands up to years of service. Set on a table or wall mount.


Accuracy Better than ±.01% @ 1 second relative to power frequency (20°C ambient, no load).
Repeatability ±.005% @ 1 second relative to power frequency (20°C ambient, no load).
Temperature Range 0° to 55°C
Humidity 0 to 95% noncondensing
Voltages Input voltage 100-130 VAC, 50 or 60 Hz (U.S. and Canada), 210-250 VAC, 50 or 60 Hz for use in other countries.
Power  Rating of AC outlets@120VAC
  • Max Lamp Load 600W
  • Max Resistive Load 1200W
  • Max Motor Load 1/3 HP
  • UL & CSA listed
GraLab's Model 450 Printing Timer is ideal in the darkroom. Gives instant response with push-button controls; two countdown ranges, and many of the 451's features. 


HU4292-451 Electronic timer / intervalometer model 451


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