Plug-And-Play A421 Series Electronic Temperature Controller With Prewired Power Cord, -40 To 212 Fahrenheit Range, 120 240 VAC, UL Type 1 IP20, SPDT 12 Amp, LCD Front-Panel Lockable Touchpad For Easy Setup, Replacement For A419 Models
✔️ 120/240 VAC, IP20 UL Type 1, SPDT 12A, -40 to 212°F
The A421 digital temperature controller is a single-stage device designed for precise heating or cooling in brewing, keezer, and fermentation setups. It replaces the A419 model and adds improved LCD readouts and a lockable front-panel touchpad for easy setup.
✅ SPDT relay output supports heating or cooling
✅ Backlit LCD display with lockable front-panel touchpad for easy setup
✅ Temperature range -40 to 212°F (-40 to 100°C) with °F/°C display
✅ 120/240 VAC operation, UL Type 1, IP20 protection
✅ Sensor offset, temperature setback, anti-short cycle, and restricted user adjustments
💡 What is a digital temperature controller used for in home brewing or fermentation projects?
A handy device helps keep beer, wine, and fermentations at a steady temperature when heating or cooling is needed.
- handy for maintaining fermentation temperatures and beer or keg storage
- single-stage control with SPDT relay to switch heating or cooling devices
- LCD display with lockable front panel for easy setup and monitoring
- works with 120/240 VAC and supports °F/°C display