Immersion Controller, Application High Limit, Maximum Control Temperature 240 Degrees F, Minimum Control Temperature 120 Degrees F, Differential Temperature 8 Degrees F Fixed, Mounting Orientation Horizontal, Vertical, Number of Switches 8, Burner Circuit Voltage Type Low Voltage, Capillary Tube Length 4 1/2 in, Spud Size Not Applicable, Contact Form SPST, Multizone Control Compatible Not Applicable, Product Type Immersion Controller, Sensor Location Remote, Auto/Manual Switch Included Yes