J0052 by MARS Save 10% $525.00 $475.00 SKU 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart ${{amount}} Control Package Heated Units - consists of INS-TD (Internal Adjustable Time Delay), INS-24V (24volt control) and 99-018 (Magnetic Reed Switch)460/3/60 - Used for high traffic doors