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Gralab Model 451 99 Minute Electronic Timer/Intervalometer, 120V/50-60Hz

SKU: GL5451156 MFR: 5-451-156
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Key Features

  • Precise enlarger timer: Achieve accuracy with 1/10 second minimum interval settings.
  • Darkroom timer repeatability: Ensures consistent results with +/-.005% at 10 seconds.
  • Versatile intervalometer: Use for timed exposures, with a total range of 99 minutes.
  • Electronic timer with buzzer: Select from 3 audio signals for darkroom timing cues.
  • Durable timer build: Operates reliably from 32 to 131 deg. F for lasting use.
  • Enlarger timer compatibility: Handles up to 600W lamp load for various setups.
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Review Summary

2023-07-12T05:08:30

Rated 5 out of 5

Received promptly - exactly what we ordered

It is terrific, came promptly, and is precisely what we expected.

ACCOUNTS P.

2019-02-27T09:52:50

Rated 5 out of 5

Sturdy and efficient

Worth the price! I run a high school photo lab, and these are at each enlarger. They get used continually for years on end without issue.

MELANIE M.

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Gralab Model 451 Specifications

  • Minimum Setting

    1/10 second

  • Total Range

    99 minutes, by minutes, seconds and 1/10 seconds

  • Automatic Buzzer

    3 audio signal choices

  • Accuracy

    Better than +/- .01% at 1 second (20 degrees C ambient, no load)

  • Repeatability

    +/-.005% at 10 seconds (20 deg. C ambient, no load)

  • Voltages

    Input voltage 100-130 VAC, 50-60 Hz; 210-250 VAC, 50-60 Hz

  • AC Outlet Power Rating

    At 120 VAC

  • Max Lamp Load

    600W

  • Max Resistive Load

    1200W

  • Max Motor Load

    1/3 HP

  • Temperature Range

    0 to 55 deg. C (32 to 131 deg. F)

  • Humidity

    0-95% noncondensing

  • Dimensions

    3.5 x 4 x 8" (8.89 x 10.16 x 20.32cm)

  • Weight

    3 lbs (1.36kg)

  • UPC Code

    782365000443

About Gralab Model 451

FEATURED REVIEWS

Received promptly - exactly what we ordered

By ACCOUNTS P.

It is terrific, came promptly, and is precisely what we expected.

Sturdy and efficient

By MELANIE M.

Worth the price! I run a high school photo lab, and these are at each enlarger. They get used continually for years on end without issue.

With its advanced technology and user-friendly design, the Model 451 Solid State Digital Timer/Intervalometer, 120V/50-60Hz, is an exceptional tool for a wide range of applications, from factory settings to photography studios and labs. Engineered for precision and reliability, this timer offers two independent, programmable memories for flexible single cycle switching or continuous cycling, ensuring you have the control you need for your specific requirements.

Boasting 100% solid state construction, the Model 451 guarantees digital accuracy and repeatability, making it a dependable choice for tasks that demand precision. Its highly visible two-digit LED display simplifies time setting, while its expansive 99-minute time range can be set in minutes, seconds, and even tenths of seconds, offering unparalleled versatility.

Further enhancing its functionality, this dual memory switching timer features separately programmable memories, allowing for operation as a single-cycle switching timer. It also includes an auto-start feature for continuous cycling, making it a versatile tool for various applications.

The Model 451 is designed with user convenience in mind, offering easily adjustable controls for display brightness, AC outlet power, audio signal choices, and countdown time ranges. Choose from three countdown time ranges: minutes up to 99, seconds up to 99, and tenths of seconds up to 9.9. The audio signal choices include off, metronome, and end-of-cycle tone, providing flexibility based on your needs.

Encased in a durable plastic shell with rubber base pads, the Model 451 is built to last. It also features wall mounting keyholes in the back for easy installation. This timer is compatible with all GraLab timers that accept a footswitch, including Models 450, 450R, 451, 451R, 645, 655, and 900. Whether you're working in a high-demand industrial setting or a busy photography studio, the Model 451 Solid State Digital Timer/Intervalometer is a reliable and high-quality choice.

Gralab Model 451 Features

  • Reliable and accurate time after time
  • Two digit display
  • Pushing the START/RESET bar during a cycle stops the timer and automatically resets it to the originally set time.

Key Features

  • Precise enlarger timer: Achieve accuracy with 1/10 second minimum interval settings.
  • Darkroom timer repeatability: Ensures consistent results with +/-.005% at 10 seconds.
  • Versatile intervalometer: Use for timed exposures, with a total range of 99 minutes.
  • Electronic timer with buzzer: Select from 3 audio signals for darkroom timing cues.
  • Durable timer build: Operates reliably from 32 to 131 deg. F for lasting use.
  • Enlarger timer compatibility: Handles up to 600W lamp load for various setups.

What's in the box:

  • GraLab Model 451 99 Minute Electronic Timer/Intervalometer
  • GraLab 1 Year Limited Warranty