Johnson Controls Digital Thermostat (A419)

  • Model:Thermostat-Digital-A419
  • Shipping Weight: 2.25lbs
  • Manufactured by: Johnson Control


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The Johnson Controls Digital Temp Controller operates by overriding the internal thermostat in a refrigerator or freezer which gives the brewer greater control over the temperature.

It can be used to heat or cool a fermentation environment when hooked up to a refrigerator. It turns the compressor on when the ambient temperature rises above your programmed temperature.

When it is hooked up to a heater, it activates when the temperature drops too low. A sensor probe monitors the temperature inside while the readout displays it in either Fahrenheit or Celsius.


  • (2) 5 foot extension cords with plug,
  • 6 foot sensor lead
  • Easy to read LCD display
  • Temp set points from -30^f to 212^f
  • Set differential of up to 30^f
    (you choose how much the temperature will vary)

More Information:

The A419 electronic temperature control is a single stage, electronic temperature control with a single-pole, double-throw (SPDT) output relay.
The control features a lockable, three-button touchpad for setup and adjustment and a liquid crystal display (LCD) which displays the sensed temperature and other control functions.
A front panel LED indicates theoutput relay status.

Electrical Ratings:

Voltage:            120V      208V      240V
Horsepower:       one        one         one
Full Load Amps:  16         9.2          8
Locked Amps:     96         55           48
Non-ind Amps:     15        10           10
Pilot duty: 125 VA at 120 to 240 VAC (N.C. contacts)

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