Cart Cart “Honeywell 51402573-100 REV A HPM UCN Interface 74-3” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal Honeywell MC-TDOR12 Digital Out 120 VAC Relay 51309148-175 63-4 Honeywell MC-TDOR12 Digital Out 120 VAC Relay 51309148-175 63-4 $124.99 Quantity $124.99 Honeywell 51402573-100 REV A HPM UCN Interface 74-3 Honeywell 51402573-100 REV A HPM UCN Interface 74-3 $169.99 Quantity $169.99 Cart Totals Subtotal $294.98 Total $294.98 — or — Proceed to Checkout