Johnson Controls Digital Temperature Controller A421GEF-01C, 24 VAC, SPDT, Nema 4X

The a421 series controls are single stage, low-voltage electronic temperature controls with a single-pole, double-throw (spdt) output relay. these can be used to control a wide variety of single-stage refrigeration or hvac equipment with an ambient temperature range of -40 to 212°f. model a421gef-01c features type 4x (nema) ip66 watertight, corrosion-resistant enclosure suitable for surface mount and rated for 24 vac class 2, safety extra low voltage. includes a99bb-25c ptc temperature sensor with a 2 in. standard probe and 9-7/8 in. pvc cable. control front panel lcd basic and advanced programming menu on/off temperature adjustment switch-activated temperature setback adjustable anti-short cycle delay adjustable sensor offset optional restricted adjustment mode sensor failure mode.