GraLab Model 451R Electronic Timer

GraLab Model 451R Electronic Timer

GraLab Model 451R Electronic Timer

B&H # GR451R MFR # GR451R
GraLab Model 451R Electronic Timer

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  • 1Description

The Gralab Model 451 is a dual memory switching timer/ intervalometer. It has all of the features as the 450, plus two independent, separately programmable memories allowing for operation as a single cycle switching timer as well as a continuously recycling intervalometer.

It also has a third time option that is adjustable in increments from 1 to 99 minutes.

Built-in metronome
Temperature range from 0-55C, Humidity range from 0-95% non-condensing
Backlit keys
UPC: 782365000443
In the Box
GraLab Model 451R Electronic Timer
  • 1-Year Warranty
  • Table of Contents
    • 1Description
    Time Range Choice of three ranges: 1-99 in mins.; 1-99 in secs.; .1-9.9 in tenths of secs.
    Maximum Wattage (Load) 600w
    Maximum Resistive Load 1200w
    Number of Outlets One
    Audible Options Three; End of cycle tone, once every second, or none at all
    Memory Two, separately programmable
    Display Two adjustable LEDs (for brightness, or can be switched off completely)
    Auto Reset Yes
    Foot Switch Yes
    Voltage 120v/50/60Hz. (Available in 220v model)
    Dimensions 3.5 x 4 x 8"
    Weight N/A
    Specialties Table or wall mountable
    Packaging Info
    Package Weight 2.1 lb
    Box Dimensions (LxWxH) 12.0 x 9.3 x 5.4"
    Model 451R Electronic Timer is rated 5.0 out of 5 by 3.
    Rated 5 out of 5 by from The darkroom standard timer These are the easiest to use timers still being made. We have a darkroom full of them and they take a lot of student abuse. Wish the chime was not so loud; other than that the controls are intuitive and the LED is very bright.
    Date published: 2015-05-14
    Rated 5 out of 5 by from Good tool for my Analog Lab Quite an excellent product, after contacting GraLab I was able to modify the timer to function with a higher inductive load and function with my Aristo VCL4500 light source.
    Date published: 2017-10-30
    Rated 5 out of 5 by from Great Timer I use these in our college photography lab, they hold up well under abuse!
    Date published: 2013-09-12
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