Air Products and Controls makes the interface hardware that connects fire alarm systems to the rest of a building — multi-voltage relays, sounder and relay detector bases, remote annunciation and indicator stations, and duct detector housings and accessories.
These are the parts that solve integration problems: shutting down an air handler on alarm, releasing a door holder, driving an auxiliary function, or bringing a remote indication somewhere staff will see it. Relays are selected by coil voltage and contact configuration; bases are matched to the detector family they carry.

Air Products and Controls
APC MR-104/C/R Relay, Enclsr, Metal, 4 SPDT, Red
Sale price$177.40
Regular price$212.88
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC MIS0003APO Set of 2 Keys
Sale price$8.80
Regular price$10.56
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC MR-104/C 4-Position SPDT with LED in Metal Enclosure
Sale price$165.90
Regular price$199.08
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC FAST TUBE Plastic Sampling Tube 3x2Feet Package
Sale price$22.35
Regular price$26.82
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC KIT0016APO Duct Detector Starter Kit
Sale price$4.40
Regular price$5.28
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC 427304 18/4 UNS Strobe CMR ORG Strip 1000 Reel In Box
Sale price$602.20
Regular price$722.64
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC 427100 18 AWG 2 Conductor Non-Shielded Non-Plenum Gray Jacket 1000 REEL In Box
Sale price$330.50
Regular price$396.60
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC 416402 22 AWG 6 Conductor Shielded Non-Plenum Gray Jacket with Blue Stripe 1000 REEL In Box
Sale price$455.35
Regular price$546.42
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC MR-201/C MR-200 Series Multi-Voltage, Energized LED
Sale price$27.60
Regular price$33.12
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC MSR-AV/T/R/C AV Combination Sounder with LED Strobe Red Plate Clear Lens
Sale price$112.80
Regular price$135.36
In Stock
Air Products and Controls
APC MS-RH/KA/P/A/T Remote Horn with Red Alarm LED
Sale price$67.50
Regular price$81.00
Only 2 units left
Air Products and Controls
APC MR-1C Gray ABS, 94V-0 Vover with 18ga CRS Back Box
Sale price$13.75
Regular price$16.50
In Stock
Air Products and Controls
APC TG-1500 Centurion Smoke Test Gas for SM / HS Series Duct Detectors
Sale price$30.90
Regular price$37.08
In Stock
Air Products and Controls
APC TG-1000 Standard Test Gas
Sale price$81.40
Regular price$97.68
Not in stock - available on backorder - lead time on request
Air Products and Controls
APC STN-10.0 10.0 Feet Metal Sampling Tube
Sale price$48.55
Regular price$58.26
In Stock