Immersion Controller, Application High Limit, Maximum Control Temperature 200 Degrees F, Minimum Control Temperature 100 Degrees F, Differential Temperature 8 Degrees F Fixed, Mounting Orientation Vertical, Number of Switches 1, Switch Action Breaks, Burner Circuit Voltage Type Millivolt, Capillary Tube Length 3 in, Spud Size 1/4 in NPT, Contact Form Not Applicable, Multizone Control Compatible Not Applicable, Product Type Immersion Controller, Auto/Manual Switch Included Yes, Overall Depth 3 in