ETR-4220 and ETR-4230 1/4 Din Microprocessor Based Smarter Logic^® Temperature Controls
96mm x 96mm · Smarter Logic for Superior Control · Only 2" Panel Depth Required · Universal Sensor Input · Universal Power Input · Automatic Tuning of PID Parameters · Sealed Mylar Front Panel · 3 Independent Outputs on ETR-4220 · 4 Independent Outputs on ETR-4230 · °F or °C Display · Configurable Security · All Control Parameters Front Panel Adjustable · Auto/Manual Operation · 3 Year Warranty  · From $360.00

ETR-4120 and ETR-4130 1/4 Din Microprocessor Based Smarter Logic^® Temperature Controls
96mm x 96mm · Smarter Logic for Superior Control · Selectable Input · ETR-4120: Single Output with 2 Optional Independent Alarms · ETR-4130: Heating and/or Cooling Outputs with 2 Optional Alarms · Ramp to Set Point · Double Segment Ramp and Soak · °F or °C Display · 5/8" and 1/2" Displays · Sealed Mylar Front Panel · External Lockout · All Control Parameters Adjustable from Front Panel · Automatic/Manual Mode Operation ·· 2" In-panel Depth · 3 Year Warranty  · From $300.00

ETR-404 and ETR-406 1/4 DIN Temperature Controls
Digital or Analog Set Point · Digital Indication · Plug-in Construction · Proportional with Manual Reset · Only 2" In-panel Depth · 5/8" LED Process Indication · Universal Power Input · 3 Year Warranty  · From $219.00

ETR-401 and ETR-402 1/4 DIN Temperature Controls
Analog Set Point · Deviation Meter or Non-indicating · Plug-in Construction · Proportional · Only 2" In-panel Depth · 3 Year Warranty  · From $109.00