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SYSTEM SENSOR

  • COSMO-2W SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $169.26 - Original price $169.26
    Original price
    $169.26
    $169.26 - $169.26
    Current price $169.26

    i4 Series combination CO/Smoke detector is a 2-Wire carbon monoxide (CO) and smoke detection technology in a single, system-connected device.

    Original price $169.26 - Original price $169.26
    Original price
    $169.26
    $169.26 - $169.26
    Current price $169.26
    Sold out
  • CO1224TR SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $151.32
    Original price $151.32 - Original price $151.32
    Original price $151.32
    Current price $136.07
    $136.07 - $136.07
    Current price $136.07

    Carbon Monoxide Detector W/Test – Ceiling Mt

    Original price $151.32
    Original price $151.32 - Original price $151.32
    Original price $151.32
    Current price $136.07
    $136.07 - $136.07
    Current price $136.07
    Sold out
  • 4W-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $62.88
    Original price $62.88 - Original price $62.88
    Original price $62.88
    Current price $55.87
    $55.87 - $55.87
    Current price $55.87

    4-wire Photoelectric i3 Smoke Detector

    Original price $62.88
    Original price $62.88 - Original price $62.88
    Original price $62.88
    Current price $55.87
    $55.87 - $55.87
    Current price $55.87
    Sold out
  • DNR SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $114.11
    Original price $114.11 - Original price $114.11
    Original price $114.11
    Current price $107.91
    $107.91 - $107.91
    Current price $107.91

    INNOVAIRFLEX INTELLIGENT DUCT DETECTOR, NON-RELAY, DOES NOT INCLUDE HEAD

    Original price $114.11
    Original price $114.11 - Original price $114.11
    Original price $114.11
    Current price $107.91
    $107.91 - $107.91
    Current price $107.91
    Sold out
  • OSI-R-SS SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $975.78
    Original price $975.78 - Original price $975.78
    Original price $975.78
    Current price $783.23
    $783.23 - $783.23
    Current price $783.23

    CONVENTIONAL SINGLE-ENDED REFLECTIVE IMAGING BEAM SMOKE DETECTOR

    Original price $975.78
    Original price $975.78 - Original price $975.78
    Original price $975.78
    Current price $783.23
    $783.23 - $783.23
    Current price $783.23
    Sold out
  • DST1.5 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $16.20 - Original price $16.20
    Original price
    $16.20
    $16.20 - $16.20
    Current price $16.20

    1.5' DUCT DETECTOR SAMPLING TUBE

    Original price $16.20 - Original price $16.20
    Original price
    $16.20
    $16.20 - $16.20
    Current price $16.20
    Sold out
  • 4WTR-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $111.49
    Original price $111.49 - Original price $111.49
    Original price $111.49
    Current price $106.48
    $106.48 - $106.48
    Current price $106.48

    4-wire, photoelectric i3 smoke detector with thermal sensor and Form C relay.

    Original price $111.49
    Original price $111.49 - Original price $111.49
    Original price $111.49
    Current price $106.48
    $106.48 - $106.48
    Current price $106.48
    Sold out
  • 5601P SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $30.51
    Original price $30.51 - Original price $30.51
    Original price $30.51
    Current price $23.51
    $23.51 - $23.51
    Current price $23.51

    135 °F (57° C) FIXED AND RATE-OF-RISE. (PLAIN)

    Original price $30.51
    Original price $30.51 - Original price $30.51
    Original price $30.51
    Current price $23.51
    $23.51 - $23.51
    Current price $23.51
    Sold out
  • SPSWK SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $173.87
    Original price $173.87 - Original price $173.87
    Original price $173.87
    Current price $156.48
    $156.48 - $156.48
    Current price $156.48
    DISCONTINUED

    WALL, OUTDOOR, WHITE, SELECTABLE CANDELA, SPEAKER/STROBE

    Original price $173.87
    Original price $173.87 - Original price $173.87
    Original price $173.87
    Current price $156.48
    $156.48 - $156.48
    Current price $156.48
    Sold out
  • 2D51 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $114.29 - Original price $114.29
    Original price
    $114.29
    $114.29 - $114.29
    Current price $114.29

    4- WIRE DUCT PHOTO DETECTOR HEAD

    Original price $114.29 - Original price $114.29
    Original price
    $114.29
    $114.29 - $114.29
    Current price $114.29
    Sold out
  • IM-10 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $483.73 - Original price $483.73
    Original price
    $483.73
    $483.73 - $483.73
    Current price $483.73

    Ten Input Monitor Addressable Module..Supports N/O Contact Inputs Only..Configurable for Any Input Type..

    Original price $483.73 - Original price $483.73
    Original price
    $483.73
    $483.73 - $483.73
    Current price $483.73
    Sold out
  • 5623 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $53.32 - Original price $53.32
    Original price
    $53.32
    $53.32 - $53.32
    Current price $53.32

    135°F FIXED HEAT DETECTOR TEMP ONLY

    Original price $53.32 - Original price $53.32
    Original price
    $53.32
    $53.32 - $53.32
    Current price $53.32
    Sold out
  • HWL-LF SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $92.88 - Original price $92.88
    Original price
    $92.88
    $92.88 - $92.88
    Current price $92.88

    Low-frequency sounder, 15, 30, 75, 95,..110, 135, 185 cd, wall, white

    Original price $92.88 - Original price $92.88
    Original price
    $92.88
    $92.88 - $92.88
    Current price $92.88
    Sold out
  • COSMOD2W SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $96.57 - Original price $96.57
    Original price
    $96.57
    $96.57 - $96.57
    Current price $96.57

    2W I4 INTERFACE MODULE

    Original price $96.57 - Original price $96.57
    Original price
    $96.57
    $96.57 - $96.57
    Current price $96.57
    Sold out
  • SB-I/O SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $23.75
    Original price $23.75 - Original price $23.75
    Original price $23.75
    Current price $21.38
    $21.38 - $21.38
    Current price $21.38

    INDOOR/OUTDOOR BACKBOX FOR NBG-12 SERIES; EXCEPT NBG-12LRA, USE IN OUTDOOR APPLICATIONS WITH NBG-12LO (ONLY). UL LISTED. PLASTIC

    Original price $23.75
    Original price $23.75 - Original price $23.75
    Original price $23.75
    Current price $21.38
    $21.38 - $21.38
    Current price $21.38
    Sold out
  • 5151 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $55.49 - Original price $55.49
    Original price
    $55.49
    $55.49 - $55.49
    Current price $55.49

    100 SERIES PLUG-IN TERMINAL

    Original price $55.49 - Original price $55.49
    Original price
    $55.49
    $55.49 - $55.49
    Current price $55.49
    Sold out
  • RTS2 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $136.48 - Original price $136.48
    Original price
    $136.48
    $136.48 - $136.48
    Current price $136.48

    Multi Signaling Unit, 20 to 29VDC. Key Reset

    Original price $136.48 - Original price $136.48
    Original price
    $136.48
    $136.48 - $136.48
    Current price $136.48
    Sold out
  • SPWK SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $104.06 - Original price $104.06
    Original price
    $104.06
    $104.06 - $104.06
    Current price $104.06

    Speaker, White, Wall Mount, Outdoor

    Original price $104.06 - Original price $104.06
    Original price
    $104.06
    $104.06 - $104.06
    Current price $104.06
    Sold out
  • 4WTAR-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $117.44 - Original price $117.44
    Original price
    $117.44
    $117.44 - $117.44
    Current price $117.44

    I3 PHOTO DETECTOR, PLUG-IN, 4-WIRE, 12/24 VDC, 135 °F THERMAL, TEMPORAL 85 DBA SOUNDER, FORM-C RELAY.

    Original price $117.44 - Original price $117.44
    Original price
    $117.44
    $117.44 - $117.44
    Current price $117.44
    Sold out
  • MP120KL SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $59.60 - Original price $59.60
    Original price
    $59.60
    $59.60 - $59.60
    Current price $59.60

    120VAC ADAPTER

    Original price $59.60 - Original price $59.60
    Original price
    $59.60
    $59.60 - $59.60
    Current price $59.60
    Sold out
  • WFD20N SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $356.87 - Original price $356.87
    Original price
    $356.87
    $356.87 - $356.87
    Current price $356.87

    2” WATERFLOW DETECTOR, SCHEDULE 10/40

    Original price $356.87 - Original price $356.87
    Original price
    $356.87
    $356.87 - $356.87
    Current price $356.87
    Sold out
  • SPSRHK SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $191.87 - Original price $191.87
    Original price
    $191.87
    $191.87 - $191.87
    Current price $191.87

    SPEAKER/STROBE, WALL, HIGH-CANDELA..135, 150, 177, 185 RED, OUTDOOR,..INCLUDES BACKBOX

    Original price $191.87 - Original price $191.87
    Original price
    $191.87
    $191.87 - $191.87
    Current price $191.87
    Sold out
  • P2RHK-120 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $154.64 - Original price $154.64
    Original price
    $154.64
    $154.64 - $154.64
    Current price $154.64
    DISCONTINUED

    HORN/STROBE, 120 VOLT, HI CANDELA, 135,150,177,185 CD, RED OUTDOOR, INCLUDES BACKBOX

    Original price $154.64 - Original price $154.64
    Original price
    $154.64
    $154.64 - $154.64
    Current price $154.64
    Sold out
  • WFD60N SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $301.01 - Original price $301.01
    Original price
    $301.01
    $301.01 - $301.01
    Current price $301.01

    WATERFLOW DETECTOR 6"

    Original price $301.01 - Original price $301.01
    Original price
    $301.01
    $301.01 - $301.01
    Current price $301.01
    Sold out
  • SPSRK SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $171.69 - Original price $171.69
    Original price
    $171.69
    $171.69 - $171.69
    Current price $171.69
    DISCONTINUED

    WALL, OUTDOOR, RED, SELECTABLE CANDELA, SPEAKER/STROBE

    Original price $171.69 - Original price $171.69
    Original price
    $171.69
    $171.69 - $171.69
    Current price $171.69
    Sold out
  • R-20E SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $69.50 - Original price $69.50
    Original price
    $69.50
    $69.50 - $69.50
    Current price $69.50

    The R-20E is a multi-voltage relay with terminal strip field wiring connections, mounting track and hardware mounted in a steel enclosure. The clos...

    View full details
    Original price $69.50 - Original price $69.50
    Original price
    $69.50
    $69.50 - $69.50
    Current price $69.50
    Sold out
  • P4RK SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $141.23 - Original price $141.23
    Original price
    $141.23
    $141.23 - $141.23
    Current price $141.23

    4 Wire Horn/Strobe STD Candela Red

    Original price $141.23 - Original price $141.23
    Original price
    $141.23
    $141.23 - $141.23
    Current price $141.23
    Sold out
  • OSY2 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $223.32
    Original price $223.32 - Original price $223.32
    Original price $223.32
    Current price $191.12
    $191.12 - $191.12
    Current price $191.12

    OUSIDE SCREW AND YOKE VALVE SUPERVISORY SWITCH

    Original price $223.32
    Original price $223.32 - Original price $223.32
    Original price $223.32
    Current price $191.12
    $191.12 - $191.12
    Current price $191.12
    Sold out
  • EOLR-1 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $36.08 - Original price $36.08
    Original price
    $36.08
    $36.08 - $36.08
    Current price $36.08

    SPST relay, ULC approved as an end of line relay to supervise power supplies.

    Original price $36.08 - Original price $36.08
    Original price
    $36.08
    $36.08 - $36.08
    Current price $36.08
    Sold out
  • D4S SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $208.21
    Original price $208.21 - Original price $208.21
    Original price $208.21
    Current price $204.15
    $204.15 - $204.15
    Current price $204.15

    INNOVAIRFLEX 4-WIRE CONVENTIONAL SENSOR ONLY COMPONENT

    Original price $208.21
    Original price $208.21 - Original price $208.21
    Original price $208.21
    Current price $204.15
    $204.15 - $204.15
    Current price $204.15
    Sold out
  • D4120W SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $422.67 - Original price $422.67
    Original price
    $422.67
    $422.67 - $422.67
    Current price $422.67

    Watertight 4-Wire Duct Smoke Detector

    Original price $422.67 - Original price $422.67
    Original price
    $422.67
    $422.67 - $422.67
    Current price $422.67
    Sold out
  • B224RB-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $60.00 - Original price $60.00
    Original price
    $60.00
    $60.00 - $60.00
    Current price $60.00
    DISCONTINUED

    INTELLIGENT RELAY BASE; IVORY

    Original price $60.00 - Original price $60.00
    Original price
    $60.00
    $60.00 - $60.00
    Current price $60.00
    Sold out
  • B200S-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $83.45
    Original price $83.45 - Original price $83.45
    Original price $83.45
    Current price $80.59
    $80.59 - $80.59
    Current price $80.59

    INTELLIGENT, ADDRESSABLE, PROGRAMMABLE PLUG-IN SOUNDER BASE HIGH OR LOW VOLUME OUTPUT WITH ANSI TEMPORAL 3 OR TEMPORAL 4, CONTINUOUS, MARCH OR CUST...

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    Original price $83.45
    Original price $83.45 - Original price $83.45
    Original price $83.45
    Current price $80.59
    $80.59 - $80.59
    Current price $80.59
    Sold out
  • 4WT-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $71.96 - Original price $71.96
    Original price
    $71.96
    $71.96 - $71.96
    Current price $71.96

    I³ PHOTO DETECTOR, 4-WIRE, 12/24 VDC, PHOTO THERMAL.

    Original price $71.96 - Original price $71.96
    Original price
    $71.96
    $71.96 - $71.96
    Current price $71.96
    Sold out
  • RTS151KEY SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $81.98 - Original price $81.98
    Original price
    $81.98
    $81.98 - $81.98
    Current price $81.98

    Remote test station; key reset123

    Original price $81.98 - Original price $81.98
    Original price
    $81.98
    $81.98 - $81.98
    Current price $81.98
    Sold out
  • MHR SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $29.58
    Original price $29.58 - Original price $29.58
    Original price $29.58
    Current price $25.06
    $25.06 - $25.06
    Current price $25.06

    MINI HORN, RED

    Original price $29.58
    Original price $29.58 - Original price $29.58
    Original price $29.58
    Current price $25.06
    $25.06 - $25.06
    Current price $25.06
    Sold out
  • SPSWK-CLR-ALERT SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $216.63 - Original price $216.63
    Original price
    $216.63
    $216.63 - $216.63
    Current price $216.63
    DISCONTINUED

    WALL SPKR/STRB WHT PLAS BOX CLR LENS

    Original price $216.63 - Original price $216.63
    Original price
    $216.63
    $216.63 - $216.63
    Current price $216.63
    Sold out
  • PC2RLED SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $82.46
    Original price $82.46 - Original price $82.46
    Original price $82.46
    Current price $74.21
    $74.21 - $74.21
    Current price $74.21

    LED HORN STROBE; CEILING; RED; FIRE; 2-WIRE

    Original price $82.46
    Original price $82.46 - Original price $82.46
    Original price $82.46
    Current price $74.21
    $74.21 - $74.21
    Current price $74.21
    Sold out
  • BZR-AG SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $57.95 - Original price $57.95
    Original price
    $57.95
    $57.95 - $57.95
    Current price $57.95

    WALL RED BEZEL KIT AGENT

    Original price $57.95 - Original price $57.95
    Original price
    $57.95
    $57.95 - $57.95
    Current price $57.95
    Sold out
  • P2WK-P SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $111.16 - Original price $111.16
    Original price
    $111.16
    $111.16 - $111.16
    Current price $111.16
    DISCONTINUED

    WHITE OUTDOOR HORN STROBE, PLAIN

    Original price $111.16 - Original price $111.16
    Original price
    $111.16
    $111.16 - $111.16
    Current price $111.16
    Sold out
  • M500DM SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $32.09 - Original price $32.09
    Original price
    $32.09
    $32.09 - $32.09
    Current price $32.09

    DUAL CLASS B MONITOR MODULE

    Original price $32.09 - Original price $32.09
    Original price
    $32.09
    $32.09 - $32.09
    Current price $32.09
    Sold out
  • B114LP SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $144.20 - Original price $144.20
    Original price
    $144.20
    $144.20 - $144.20
    Current price $144.20

    BASE 6.0" 4W RLY (FIRELITE)

    Original price $144.20 - Original price $144.20
    Original price
    $144.20
    $144.20 - $144.20
    Current price $144.20
    Sold out
  • P2RL-LF SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $138.07 - Original price $138.07
    Original price
    $138.07
    $138.07 - $138.07
    Current price $138.07
    DISCONTINUED

    COMBO 2W WALL LOW FREQUENCY RED

    Original price $138.07 - Original price $138.07
    Original price
    $138.07
    $138.07 - $138.07
    Current price $138.07
    Sold out
  • SRK-R SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $90.68 - Original price $90.68
    Original price
    $90.68
    $90.68 - $90.68
    Current price $90.68

    REPLACEMENT STROBE, 12/24 VOLT, RED, MULTI-CANDELA 15,15/75,30,75,110,115 CD, OUTDOOR

    Original price $90.68 - Original price $90.68
    Original price
    $90.68
    $90.68 - $90.68
    Current price $90.68
    Sold out
  • SSV120-10 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $76.99 - Original price $76.99
    Original price
    $76.99
    $76.99 - $76.99
    Current price $76.99

    The SSV120-10 is a 10", 120VAC alarm bell.

    Original price $76.99 - Original price $76.99
    Original price
    $76.99
    $76.99 - $76.99
    Current price $76.99
    Sold out
  • HCWL-LF-BP10 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $967.91
    Original price $967.91 - Original price $967.91
    Original price $967.91
    Current price $857.05
    $857.05 - $857.05
    Current price $857.05

    LOW-FREQUENCY COMPACT SOUNDER, 15, 30, 75, 95, 110, 135, 185 CD, CEILING, WHITE - BULK PACK of 10 UNITS

    Original price $967.91
    Original price $967.91 - Original price $967.91
    Original price $967.91
    Current price $857.05
    $857.05 - $857.05
    Current price $857.05
    Sold out
  • HWL-LF-BP10 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $701.46 - Original price $701.46
    Original price
    $701.46
    $701.46 - $701.46
    Current price $701.46

    LOW-FREQUENCY SOUNDER, 15, 30, 75, 95,

    Original price $701.46 - Original price $701.46
    Original price
    $701.46
    $701.46 - $701.46
    Current price $701.46
    Sold out
  • SPWL-BP10 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $368.26 - Original price $368.26
    Original price
    $368.26
    $368.26 - $368.26
    Current price $368.26

    SPEAKER WHITE WALL; 10 PACK

    Original price $368.26 - Original price $368.26
    Original price
    $368.26
    $368.26 - $368.26
    Current price $368.26
    Sold out