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SYSTEM SENSOR

  • WBB SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $40.84
    Original price $40.84 - Original price $40.84
    Original price $40.84
    Current price $33.28
    $33.28 - $33.28
    Current price $33.28

    WEATHERPROOF BACKBOX, RED.

    Original price $40.84
    Original price $40.84 - Original price $40.84
    Original price $40.84
    Current price $33.28
    $33.28 - $33.28
    Current price $33.28
    Save $7.56 Save $0.00
  • 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
  • PC2WL-LF SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $163.07
    Original price $163.07 - Original price $163.07
    Original price $163.07
    Current price $146.77
    $146.77 - $146.77
    Current price $146.77
    DISCONTINUED

    L-Series, white, ceiling-mountable, clear lens, 2-wire, horn strobe marked "FIRE". Selectable strobe settings: 15, 30, 75, 95, 115, 150 and 177 cd.

    Original price $163.07
    Original price $163.07 - Original price $163.07
    Original price $163.07
    Current price $146.77
    $146.77 - $146.77
    Current price $146.77
    Save $16.30 Save $0.00
  • 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
  • 2WTR-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $81.81
    Original price $81.81 - Original price $81.81
    Original price $81.81
    Current price $73.63
    $73.63 - $73.63
    Current price $73.63

    I3 PHOTO DETECTOR, PLUG-IN, 2-WIRE, 12/24 VDC, 135 °F THERMAL, FORM-C RELAY.

    Original price $81.81
    Original price $81.81 - Original price $81.81
    Original price $81.81
    Current price $73.63
    $73.63 - $73.63
    Current price $73.63
    Save $8.18 Save $0.00
  • 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
  • SMB500-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $24.02
    Original price $24.02 - Original price $24.02
    Original price $24.02
    Current price $21.62
    $21.62 - $21.62
    Current price $21.62

    WHITE BACK BOX

    Original price $24.02
    Original price $24.02 - Original price $24.02
    Original price $24.02
    Current price $21.62
    $21.62 - $21.62
    Current price $21.62
    Save $2.40 Save $0.00
  • 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
  • MWBBW SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $67.80
    Original price $67.80 - Original price $67.80
    Original price $67.80
    Current price $61.02
    $61.02 - $61.02
    Current price $61.02

    WALL, METAL WEATHERPROOF BACK BOX, WHITE

    Original price $67.80
    Original price $67.80 - Original price $67.80
    Original price $67.80
    Current price $61.02
    $61.02 - $61.02
    Current price $61.02
    Save $6.78 Save $0.00
  • 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
  • D4P120 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $162.16
    Original price $162.16 - Original price $162.16
    Original price $162.16
    Current price $145.94
    $145.94 - $145.94
    Current price $145.94

    4WIRE PHOTOELECTRIC PWR BOARD

    Original price $162.16
    Original price $162.16 - Original price $162.16
    Original price $162.16
    Current price $145.94
    $145.94 - $145.94
    Current price $145.94
    Save $16.22 Save $0.00
  • 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-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $74.87
    Original price $74.87 - Original price $74.87
    Original price $74.87
    Current price $67.38
    $67.38 - $67.38
    Current price $67.38

    REPLACEMENT FOR B224RB

    Original price $74.87
    Original price $74.87 - Original price $74.87
    Original price $74.87
    Current price $67.38
    $67.38 - $67.38
    Current price $67.38
    Save $7.49 Save $0.00
  • 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...

    View full details
    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
  • 5622 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $50.82
    Original price $50.82 - Original price $50.82
    Original price $50.82
    Current price $45.73
    $45.73 - $45.73
    Current price $45.73

    DUAL CIRCUITE 194°F FIXED TEMPERATURE RATE OF RISE

    Original price $50.82
    Original price $50.82 - Original price $50.82
    Original price $50.82
    Current price $45.73
    $45.73 - $45.73
    Current price $45.73
    Save $5.09 Save $0.00
  • 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
  • DST3 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $21.42
    Original price $21.42 - Original price $21.42
    Original price $21.42
    Current price $19.28
    $19.28 - $19.28
    Current price $19.28

    STEEL SAMPLING TUBE 3'

    Original price $21.42
    Original price $21.42 - Original price $21.42
    Original price $21.42
    Current price $19.28
    $19.28 - $19.28
    Current price $19.28
    Save $2.14 Save $0.00
  • 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
  • P2RLED SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $71.47 - Original price $71.47
    Original price
    $71.47
    $71.47 - $71.47
    Current price $71.47

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

    Original price $71.47 - Original price $71.47
    Original price
    $71.47
    $71.47 - $71.47
    Current price $71.47
  • 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
  • P4RL SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $115.85
    Original price $115.85 - Original price $115.85
    Original price $115.85
    Current price $104.27
    $104.27 - $104.27
    Current price $104.27

    HORN STROBE, WALL, 4-WIRE, RED, L-SERIES

    Original price $115.85
    Original price $115.85 - Original price $115.85
    Original price $115.85
    Current price $104.27
    $104.27 - $104.27
    Current price $104.27
    Save $11.58 Save $0.00
  • SPWL SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $54.32
    Original price $54.32 - Original price $54.32
    Original price $54.32
    Current price $48.89
    $48.89 - $48.89
    Current price $48.89

    SPEAKER WHITE WALL

    Original price $54.32
    Original price $54.32 - Original price $54.32
    Original price $54.32
    Current price $48.89
    $48.89 - $48.89
    Current price $48.89
    Save $5.43 Save $0.00
  • 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
  • SCWLED-CLR-ALERT SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $77.62
    Original price $77.62 - Original price $77.62
    Original price $77.62
    Current price $69.86
    $69.86 - $69.86
    Current price $69.86

    LED STROBE; CEILING; WHITE; ALERT; 2-WIRE

    Original price $77.62
    Original price $77.62 - Original price $77.62
    Original price $77.62
    Current price $69.86
    $69.86 - $69.86
    Current price $69.86
    Save $7.76 Save $0.00
  • 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
  • SPSCRV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $69.64
    Original price $69.64 - Original price $69.64
    Original price $69.64
    Current price $62.68
    $62.68 - $62.68
    Current price $62.68
    DISCONTINUED

    Speaker Strobe, High Volume, Standard-candela, Indoor, Ceiling Mount, Red

    Original price $69.64
    Original price $69.64 - Original price $69.64
    Original price $69.64
    Current price $62.68
    $62.68 - $62.68
    Current price $62.68
    Save $6.96 Save $0.00
  • CHSWL SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $115.69
    Original price $115.69 - Original price $115.69
    Original price $115.69
    Current price $104.13
    $104.13 - $104.13
    Current price $104.13

    SYSTEM SENSOR CHIME STROBE WHITE WALL

    Original price $115.69
    Original price $115.69 - Original price $115.69
    Original price $115.69
    Current price $104.13
    $104.13 - $104.13
    Current price $104.13
    Save $11.56 Save $0.00
  • 5251H SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $155.41
    Original price $155.41 - Original price $155.41
    Original price $155.41
    Current price $139.87
    $139.87 - $139.87
    Current price $139.87

    ADDRESSABLE HEAT DETECTOR HEAD, 190F FIXED, REQUIRES BASE

    Original price $155.41
    Original price $155.41 - Original price $155.41
    Original price $155.41
    Current price $139.87
    $139.87 - $139.87
    Current price $139.87
    Save $15.54 Save $0.00
  • 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
  • LENS-AC SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $17.98
    Original price $17.98 - Original price $17.98
    Original price $17.98
    Current price $15.83
    $15.83 - $15.83
    Current price $15.83
    DISCONTINUED

    CEILING STROBE LENS ATTACHMENT, AMBER

    Original price $17.98
    Original price $17.98 - Original price $17.98
    Original price $17.98
    Current price $15.83
    $15.83 - $15.83
    Current price $15.83
    Save $2.15 Save $0.00
  • BZGW-AL SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $58.69
    Original price $58.69 - Original price $58.69
    Original price $58.69
    Current price $18.35
    $18.35 - $18.35
    Current price $18.35

    4x2 Wall White Bezel Kit with ALERT

    Original price $58.69
    Original price $58.69 - Original price $58.69
    Original price $58.69
    Current price $18.35
    $18.35 - $18.35
    Current price $18.35
    Save $40.34 Save $0.00
  • DST1 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $12.99
    Original price $12.99 - Original price $12.99
    Original price $12.99
    Current price $11.69
    $11.69 - $11.69
    Current price $11.69

    INNOVAIRFLEX SAMPLING TUBE, STEEL, 1’ WITH HOLES

    Original price $12.99
    Original price $12.99 - Original price $12.99
    Original price $12.99
    Current price $11.69
    $11.69 - $11.69
    Current price $11.69
    Save $1.30 Save $0.00
  • 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
  • MWBBCW SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $73.91
    Original price $73.91 - Original price $73.91
    Original price $73.91
    Current price $66.52
    $66.52 - $66.52
    Current price $66.52

    CEILING, METAL WEATHERPROOF BACK BOX, WHITE

    Original price $73.91
    Original price $73.91 - Original price $73.91
    Original price $73.91
    Current price $66.52
    $66.52 - $66.52
    Current price $66.52
    Save $7.39 Save $0.00
  • 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
  • B501-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $14.28
    Original price $14.28 - Original price $14.28
    Original price $14.28
    Current price $12.85
    $12.85 - $12.85
    Current price $12.85

    INTELLIGENT DETECTOR BASES WITHOUT FLANGE

    Original price $14.28
    Original price $14.28 - Original price $14.28
    Original price $14.28
    Current price $12.85
    $12.85 - $12.85
    Current price $12.85
    Save $1.43 Save $0.00
  • 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