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Johnson Controls A421ABD 2C Electronic Temperature Review

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
🏠 Large Appliance Accessories, 🏠 Appliances

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Description of Johnson Controls A421ABD 2C Electronic Temperature

Easy-to-read, bright, adjustable backlit LCD screen displays the temperature. Basic and advanced programming menus allow you to easily set up your control application on the LCD using a simple three-button touchpad interface. Adjustable On and Off temperature set points enable easy to set up cooling or heating. Item Package Dimension: 5.0" L x 5.0" W x 5.0" H.

Reviews

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Type of review

Revainrating 5 out of 5

The A419 is best suited for some applications because it has differential adjustment.

I have 2 A419 and 1 A421. I've used them from time to time to control a smoker, a seedling heater, and a fan on a gas heater. The A419 is best suited for some applications because it has a differential setting that corresponds to a setpoint that needs to be changed frequently, e.g. B. when smoking fish, and I only have to make one adjustment each time. A 421 works well for a setpoint that stays fairly constant, like fan control for a heater. When using both A419 and A421 I have a contactor to…

Pros
  • Kitchen and dining room
Cons
  • Difficult to say