Johnson Controllers Mechanical Temperature Controller A19EAF-2C Flange Mounted Duct, SPDT, Heat & CoolThis is a wide-range temperature control with a special air coil sensing element and an adjustable mounting flange.Features: SPDT snap-action switchunaffected by barometric pressure or cross- ambient temperaturesflat flange mounting with the coil element permits positioning the sensing bulb in the appropriate portion of the air stream Product Specifications BRANDJohnson Controls CAPILLARY LENGTH FEETCoiled Capillary BULB SIZE INCHES-- MAXIMUM BULB TEMPERATURE °F (°C)140 (60) DIFFERENTIAL TEMPERATURE °F2 TEMPERATURE CONTROL RANGE °F30 to 110 VOLTAGE240 / 120 NEMA RATING1 STAGESSingle SWITCH ACTIONSPDT TYPEHeat & Cool LISTING, RATING, CERTIFICATIONUL Listed LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERA19EAF-2C