GraLab 300 Timer (Electro/Mechanical)

Priced: $107.28
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GraLab 300 Timer (Electro/Mechanical) -

Minutes and seconds can easily be read across the room in total darkness, making the 300 ideal for film processing, especially the precise timing required by color processing. The 60-minute time range can be set in minutes for developing and seconds for enlarger control. Two hands permit quick setting by seconds, minutes or combinations of seconds and minutes.
An exclusive dual-cam mechanism provides extreme accuracy for long time intervals: +/-015% at maximum dial setting. Two separate outlet receptacles control an enlarger or printer and safelight by a combination time/focus switch. Each outlet has a 600 watts rated capacity for operating most film processing equipment. The Model 300 can be used with a relay for heavier loads.
The case is made from a blend of hybrid plastics and measures 7 1/2" x 7 1/2" x 2 1/2". It is exceptionally strong, withstands high impact, resists chemicals and moisture, and is electrically non-conductive. The case has a recessed handle in the back and keyholes for wall mounting.


  • Sturdy polycarbonate/PET case with rubber base pads resists impact & chemicals.


  • Seconds hand rotates one revolution/min
  • Fluorescent lightfast fingertip control.
  • General photographic & industrial timing
  • Safelight outlet
  • Split-second accuracy
  • Three-wire grounded cord.
  • Two switchable outlets
  • Contemporary, easy-to-read numerals on a large 6-1/2" diameter face. Numerals, dial and hands are luminous. Glows 20-30 minutes, Recharge with incandescent light
  • Buzzer automatically signals end of developing period, can be set for desired volume. Adjustable from 0 dB to 80 dB.
  • Precision accuracy assured by electric synchronous motor.
  • Keyholes in back make wall mounting easy.
  • Gray, texture, non-slip finish has contemporary look.
  • Power switch starts the timing cycle
  • Enlarger or Printer outlet
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Accuracy:.015% at maximum setting
Audible Options:Buzzer automatically signals end of Timing period can be set for desired volume
Auto Reset:No
Dimensions:7 1/2" x 7 1/2" x 2 1/2
Display:easy-to-read numerals on a large 6 1/2" diameter face. Numerals, dial and hands are luminous.
Foot Switch:No
Housing Material:Sturdy Polycarbonate
Max. Lamp Load:600W
Max. Motor Load:1/3 HP
Max. Resistive Load:1200W
Number of Outlets:(2) 1 for Enlarger or Printer, 1 for Safelight
Time Range:5 Seconds to 60 minutes in Seconds & Minutes
Voltage:Input voltage 100-130 VAC, 50 or 60 Hz

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