Johnson Controls A99Bb 200C Temperature Sensor

The A421 Series Electronic Temperature Controls Are Single-Stage Controls With A Single-Pole, Double-Throw (Spdt) Output Relay. A421 Controls Feature A Bright Backlit Lcd With Adjustable Brightness And A Three-Button Touchpad Interface That Can Be Set Up To Restrict User Adjustments. An Led Indicates The Output Relay'S On/Off Status. Standard A421 Series Control Modules Have Simple On And Off Temperature Settings For Heating Or Cooling, An Adjustable Anti-Short Cycle Delay, Temperature Setback, And Sensor Offset Capability. The Temperature Control Range Is -40 To 212F Or -40 To 100C. The A421 Controls Are Available Either In Type 1 (Nema), Ip20 (Ce), High-Impact Plastic Enclosures Suitable For Surface Or Din Rail Mounting Or In Type 4X (Nema), Ip67 (Ce) Watertight, Corrosion Resistant Surface Mount Enclosures.