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  • 2151 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $53.23
    Original price $53.23 - Original price $53.23
    Original price $53.23
    Current price $47.91
    $47.91 - $47.91
    Current price $47.91
    DISCONTINUED

    Smoke Detector Head, Photo, Low-Profile

    Original price $53.23
    Original price $53.23 - Original price $53.23
    Original price $53.23
    Current price $47.91
    $47.91 - $47.91
    Current price $47.91
    Save $5.32 Save $0.00
  • 2D51 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $81.32 - Original price $81.32
    Original price
    $81.32
    $81.32 - $81.32
    Current price $81.32

    4- WIRE DUCT PHOTO DETECTOR HEAD

    Original price $81.32 - Original price $81.32
    Original price
    $81.32
    $81.32 - $81.32
    Current price $81.32
    Sold out
  • 2W-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $38.21 - Original price $38.21
    Original price
    $38.21
    $38.21 - $38.21
    Current price $38.21

    i3 smoke detector, 2-wire photoelectric with base

    Original price $38.21 - Original price $38.21
    Original price
    $38.21
    $38.21 - $38.21
    Current price $38.21
    Sold out
  • 2WT-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $50.14
    Original price $50.14 - Original price $50.14
    Original price $50.14
    Current price $45.13
    $45.13 - $45.13
    Current price $45.13

    I³ PHOTO DETECTOR, 2-WIRE, 12/24 VDC, PHOTO THERMAL

    Original price $50.14
    Original price $50.14 - Original price $50.14
    Original price $50.14
    Current price $45.13
    $45.13 - $45.13
    Current price $45.13
    Save $5.01 Save $0.00
  • 2WTA-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $64.06 - Original price $64.06
    Original price
    $64.06
    $64.06 - $64.06
    Current price $64.06

    2-Wire Photoelectric Smoke Detector

    Original price $64.06 - Original price $64.06
    Original price
    $64.06
    $64.06 - $64.06
    Current price $64.06
  • 2WTR-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $58.21
    Original price $58.21 - Original price $58.21
    Original price $58.21
    Current price $52.39
    $52.39 - $52.39
    Current price $52.39

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

    Original price $58.21
    Original price $58.21 - Original price $58.21
    Original price $58.21
    Current price $52.39
    $52.39 - $52.39
    Current price $52.39
    Save $5.82 Save $0.00
  • 4W-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $39.74 - Original price $39.74
    Original price
    $39.74
    $39.74 - $39.74
    Current price $39.74

    4-wire Photoelectric i3 Smoke Detector

    Original price $39.74 - Original price $39.74
    Original price
    $39.74
    $39.74 - $39.74
    Current price $39.74
    Sold out
  • 4WT-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $51.20 - Original price $51.20
    Original price
    $51.20
    $51.20 - $51.20
    Current price $51.20

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

    Original price $51.20 - Original price $51.20
    Original price
    $51.20
    $51.20 - $51.20
    Current price $51.20
    Sold out
  • 4WTA-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $72.40 - Original price $72.40
    Original price
    $72.40
    $72.40 - $72.40
    Current price $72.40

    Photoelectric Smoke and Heat Detector / Sounder

    Original price $72.40 - Original price $72.40
    Original price
    $72.40
    $72.40 - $72.40
    Current price $72.40
    Sold out
  • 4WTAR-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $83.56 - Original price $83.56
    Original price
    $83.56
    $83.56 - $83.56
    Current price $83.56

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

    Original price $83.56 - Original price $83.56
    Original price
    $83.56
    $83.56 - $83.56
    Current price $83.56
    Sold out
  • 4WTR-B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $61.90 - Original price $61.90
    Original price
    $61.90
    $61.90 - $61.90
    Current price $61.90

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

    Original price $61.90 - Original price $61.90
    Original price
    $61.90
    $61.90 - $61.90
    Current price $61.90
    Sold out
  • 5151 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $34.48 - Original price $34.48
    Original price
    $34.48
    $34.48 - $34.48
    Current price $34.48

    100 SERIES PLUG-IN TERMINAL

    Original price $34.48 - Original price $34.48
    Original price
    $34.48
    $34.48 - $34.48
    Current price $34.48
    Sold out
  • 5251H SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $110.58
    Original price $110.58 - Original price $110.58
    Original price $110.58
    Current price $99.52
    $99.52 - $99.52
    Current price $99.52

    ADDRESSABLE HEAT DETECTOR HEAD, 190F FIXED, REQUIRES BASE

    Original price $110.58
    Original price $110.58 - Original price $110.58
    Original price $110.58
    Current price $99.52
    $99.52 - $99.52
    Current price $99.52
    Save $11.06 Save $0.00
  • 5601P SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $18.69
    Original price $18.69 - Original price $18.69
    Original price $18.69
    Current price $16.71
    $16.71 - $16.71
    Current price $16.71

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

    Original price $18.69
    Original price $18.69 - Original price $18.69
    Original price $18.69
    Current price $16.71
    $16.71 - $16.71
    Current price $16.71
    Sold out
  • 5602 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $17.43
    Original price $17.43 - Original price $17.43
    Original price $17.43
    Current price $16.15
    $16.15 - $16.15
    Current price $16.15

    SINGLE CIRCUIT 194"F(90"C) RATE OF RISE AND FIXED TEMP

    Original price $17.43
    Original price $17.43 - Original price $17.43
    Original price $17.43
    Current price $16.15
    $16.15 - $16.15
    Current price $16.15
    Sold out
  • 5603 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $21.48
    Original price $21.48 - Original price $21.48
    Original price $21.48
    Current price $14.83
    $14.83 - $14.83
    Current price $14.83

    135°F FIXED TEMPERATURE....CAN REPLACE 283B-PL

    Original price $21.48
    Original price $21.48 - Original price $21.48
    Original price $21.48
    Current price $14.83
    $14.83 - $14.83
    Current price $14.83
    Save $6.65 Save $0.00
  • 5604 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $16.22 - Original price $16.22
    Original price
    $16.22
    $16.22 - $16.22
    Current price $16.22

    194 °F (90° C) fixed temperature.

    Original price $16.22 - Original price $16.22
    Original price
    $16.22
    $16.22 - $16.22
    Current price $16.22
    Sold out
  • 5621 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $44.09
    Original price $44.09 - Original price $44.09
    Original price $44.09
    Current price $35.18
    $35.18 - $35.18
    Current price $35.18

    135°F FIXED TEMPERATURE

    Original price $44.09
    Original price $44.09 - Original price $44.09
    Original price $44.09
    Current price $35.18
    $35.18 - $35.18
    Current price $35.18
    Save $8.91 Save $0.00
  • 5622 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $36.16
    Original price $36.16 - Original price $36.16
    Original price $36.16
    Current price $28.04
    $28.04 - $28.04
    Current price $28.04

    DUAL CIRCUITE 194°F FIXED TEMPERATURE RATE OF RISE

    Original price $36.16
    Original price $36.16 - Original price $36.16
    Original price $36.16
    Current price $28.04
    $28.04 - $28.04
    Current price $28.04
    Save $8.12 Save $0.00
  • 5623 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $32.94 - Original price $32.94
    Original price
    $32.94
    $32.94 - $32.94
    Current price $32.94

    135°F FIXED HEAT DETECTOR TEMP ONLY

    Original price $32.94 - Original price $32.94
    Original price
    $32.94
    $32.94 - $32.94
    Current price $32.94
    Sold out
  • 5624 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $33.94
    Original price $33.94 - Original price $33.94
    Original price $33.94
    Current price $26.05
    $26.05 - $26.05
    Current price $26.05

    194 °F (90° C) FIXED TEMPERATURE, DUAL CIRCUIT, NORMALLY OPEN

    Original price $33.94
    Original price $33.94 - Original price $33.94
    Original price $33.94
    Current price $26.05
    $26.05 - $26.05
    Current price $26.05
    Save $7.89 Save $0.00
  • 6500-MMK-US SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $141.47 - Original price $141.47
    Original price
    $141.47
    $141.47 - $141.47
    Current price $141.47

    MULTI MOUNT KIT

    Original price $141.47 - Original price $141.47
    Original price
    $141.47
    $141.47 - $141.47
    Current price $141.47
    Sold out
  • 72377B-801 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $304.19 - Original price $304.19
    Original price
    $304.19
    $304.19 - $304.19
    Current price $304.19

    WALL / POLE MOUNTING BRACKET FOR TCPA-10 SERIES

    Original price $304.19 - Original price $304.19
    Original price
    $304.19
    $304.19 - $304.19
    Current price $304.19
    Sold out
  • A77-01-02 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $44.99
    Original price $44.99 - Original price $44.99
    Original price $44.99
    Current price $35.99
    $35.99 - $35.99
    Current price $35.99

    Replacement terminal block kit for WFD series waterflow detectors.

    Original price $44.99
    Original price $44.99 - Original price $44.99
    Original price $44.99
    Current price $35.99
    $35.99 - $35.99
    Current price $35.99
    Save $9.00 Save $0.00
  • B110RLP SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $23.84
    Original price $23.84 - Original price $23.84
    Original price $23.84
    Current price $16.97
    $16.97 - $16.97
    Current price $16.97
    DISCONTINUED

    B110RLP is a 2-wire base with a 470 Ohm current limiting resistor for use with 100 Series smoke detectors.

    Original price $23.84
    Original price $23.84 - Original price $23.84
    Original price $23.84
    Current price $16.97
    $16.97 - $16.97
    Current price $16.97
    Save $6.87 Save $0.00
  • B112LP SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $35.48 - Original price $35.48
    Original price
    $35.48
    $35.48 - $35.48
    Current price $35.48
    DISCONTINUED

    BASE, 4-WIRE, LOW-PROFILE, FORM-A&C, 24VDC

    Original price $35.48 - Original price $35.48
    Original price
    $35.48
    $35.48 - $35.48
    Current price $35.48
    Sold out
  • B114LP SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $102.60 - Original price $102.60
    Original price
    $102.60
    $102.60 - $102.60
    Current price $102.60

    BASE 6.0" 4W RLY (FIRELITE)

    Original price $102.60 - Original price $102.60
    Original price
    $102.60
    $102.60 - $102.60
    Current price $102.60
    Sold out
  • B114LPBT SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $87.87 - Original price $87.87
    Original price
    $87.87
    $87.87 - $87.87
    Current price $87.87

    BASE 6.0" FOR 2151

    Original price $87.87 - Original price $87.87
    Original price
    $87.87
    $87.87 - $87.87
    Current price $87.87
    Sold out
  • B200S SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $82.31
    Original price $82.31 - Original price $82.31
    Original price $82.31
    Current price $81.53
    $81.53 - $81.53
    Current price $81.53

    Addressable, Synchronizable, Intelligent Sounder base designed for new and existing dwelling unit applications.

    Original price $82.31
    Original price $82.31 - Original price $82.31
    Original price $82.31
    Current price $81.53
    $81.53 - $81.53
    Current price $81.53
    Sold out
  • B200S-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $82.30 - Original price $82.30
    Original price
    $82.30
    $82.30 - $82.30
    Current price $82.30
    DISCONTINUED

    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 $82.30 - Original price $82.30
    Original price
    $82.30
    $82.30 - $82.30
    Current price $82.30
    Sold out
  • B200S-LF-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $111.31 - Original price $111.31
    Original price
    $111.31
    $111.31 - $111.31
    Current price $111.31
    DISCONTINUED

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

    View full details
    Original price $111.31 - Original price $111.31
    Original price
    $111.31
    $111.31 - $111.31
    Current price $111.31
    Sold out
  • B200S-LF-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $92.29 - Original price $92.29
    Original price
    $92.29
    $92.29 - $92.29
    Current price $92.29

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

    View full details
    Original price $92.29 - Original price $92.29
    Original price
    $92.29
    $92.29 - $92.29
    Current price $92.29
    Sold out
  • B200S-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $59.38
    Original price $59.38 - Original price $59.38
    Original price $59.38
    Current price $57.34
    $57.34 - $57.34
    Current price $57.34

    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 $59.38
    Original price $59.38 - Original price $59.38
    Original price $59.38
    Current price $57.34
    $57.34 - $57.34
    Current price $57.34
    Sold out
  • B200SR-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $64.53 - Original price $64.53
    Original price
    $64.53
    $64.53 - $64.53
    Current price $64.53
    DISCONTINUED

    INTELLIGENT PLUG-IN SOUNDER BASE WITH ANSI TEMPORAL 3 OR CONTINUOUS TONE; IVORY

    Original price $64.53 - Original price $64.53
    Original price
    $64.53
    $64.53 - $64.53
    Current price $64.53
    Sold out
  • B200SR-LF-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $126.28
    Original price $126.28 - Original price $126.28
    Original price $126.28
    Current price $113.65
    $113.65 - $113.65
    Current price $113.65
    DISCONTINUED

    Addressable Low Frequency Sounder Base, Ivory

    Original price $126.28
    Original price $126.28 - Original price $126.28
    Original price $126.28
    Current price $113.65
    $113.65 - $113.65
    Current price $113.65
    Save $12.63 Save $0.00
  • B200SR-LF-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $99.54
    Original price $99.54 - Original price $99.54
    Original price $99.54
    Current price $89.59
    $89.59 - $89.59
    Current price $89.59

    INTELLIGENT LOW-FREQUENCY PLUG-IN SUNDER BASE WITH ANSI TEMPORAL 3 OR CONTINOUS TONE; WHITE

    Original price $99.54
    Original price $99.54 - Original price $99.54
    Original price $99.54
    Current price $89.59
    $89.59 - $89.59
    Current price $89.59
    Save $9.95 Save $0.00
  • B200SR-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $67.09
    Original price $67.09 - Original price $67.09
    Original price $67.09
    Current price $60.38
    $60.38 - $60.38
    Current price $60.38

    INTELLIGENT PLUG-IN SOUNDER BASE WITH ANSI TEMPORAL 3 OR CONTINUOUS TONE; WHITE

    Original price $67.09
    Original price $67.09 - Original price $67.09
    Original price $67.09
    Current price $60.38
    $60.38 - $60.38
    Current price $60.38
    Save $6.71 Save $0.00
  • B224BI SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $50.26
    Original price $50.26 - Original price $50.26
    Original price $50.26
    Current price $40.73
    $40.73 - $40.73
    Current price $40.73
    DISCONTINUED

    INTELLIGENT ISOLATOR BASE

    Original price $50.26
    Original price $50.26 - Original price $50.26
    Original price $50.26
    Current price $40.73
    $40.73 - $40.73
    Current price $40.73
    Save $9.53 Save $0.00
  • B224BI-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $21.64
    Original price $21.64 - Original price $21.64
    Original price $21.64
    Current price $14.98
    $14.98 - $14.98
    Current price $14.98
    DISCONTINUED

    ISOLATOR BASE; IVORY

    Original price $21.64
    Original price $21.64 - Original price $21.64
    Original price $21.64
    Current price $14.98
    $14.98 - $14.98
    Current price $14.98
    Save $6.66 Save $0.00
  • B224BI-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $52.06
    Original price $52.06 - Original price $52.06
    Original price $52.06
    Current price $42.35
    $42.35 - $42.35
    Current price $42.35

    INTELLIGENT ISOLATOR BASE; WHITE

    Original price $52.06
    Original price $52.06 - Original price $52.06
    Original price $52.06
    Current price $42.35
    $42.35 - $42.35
    Current price $42.35
    Save $9.71 Save $0.00
  • B224RB SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $50.39
    Original price $50.39 - Original price $50.39
    Original price $50.39
    Current price $40.85
    $40.85 - $40.85
    Current price $40.85
    DISCONTINUED

    SENSOR INTELLIGENT RELAY BASE

    Original price $50.39
    Original price $50.39 - Original price $50.39
    Original price $50.39
    Current price $40.85
    $40.85 - $40.85
    Current price $40.85
    Save $9.54 Save $0.00
  • B224RB-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $37.69 - Original price $37.69
    Original price
    $37.69
    $37.69 - $37.69
    Current price $37.69
    DISCONTINUED

    INTELLIGENT RELAY BASE; IVORY

    Original price $37.69 - Original price $37.69
    Original price
    $37.69
    $37.69 - $37.69
    Current price $37.69
    Sold out
  • B224RB-WH SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $53.27
    Original price $53.27 - Original price $53.27
    Original price $53.27
    Current price $43.44
    $43.44 - $43.44
    Current price $43.44

    REPLACEMENT FOR B224RB

    Original price $53.27
    Original price $53.27 - Original price $53.27
    Original price $53.27
    Current price $43.44
    $43.44 - $43.44
    Current price $43.44
    Save $9.83 Save $0.00
  • B300-6 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $12.16
    Original price $12.16 - Original price $12.16
    Original price $12.16
    Current price $6.44
    $6.44 - $6.44
    Current price $6.44

    6" BASE LOW-PROFILE, STANDARD FLANGED, WHITE

    Original price $12.16
    Original price $12.16 - Original price $12.16
    Original price $12.16
    Current price $6.44
    $6.44 - $6.44
    Current price $6.44
    Save $5.72 Save $0.00
  • B300-6-IV SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $20.33
    Original price $20.33 - Original price $20.33
    Original price $20.33
    Current price $9.16
    $9.16 - $9.16
    Current price $9.16
    DISCONTINUED

    6" BASE; IVORY

    Original price $20.33
    Original price $20.33 - Original price $20.33
    Original price $20.33
    Current price $9.16
    $9.16 - $9.16
    Current price $9.16
    Sold out
  • B401BR SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $25.80
    Original price $25.80 - Original price $25.80
    Original price $25.80
    Current price $18.72
    $18.72 - $18.72
    Current price $18.72
    DISCONTINUED

    Plug-in detector BaseCompatible with detectors 1451 / 2451 / 2451TH

    Original price $25.80
    Original price $25.80 - Original price $25.80
    Original price $25.80
    Current price $18.72
    $18.72 - $18.72
    Current price $18.72
    Save $7.08 Save $0.00
  • B406B SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $31.20 - Original price $31.20
    Original price
    $31.20
    $31.20 - $31.20
    Current price $31.20
    DISCONTINUED

    Conventional Plug-In Detector BaseCompatible with detectors 1451 / 2451 / 2451TH / 5451

    Original price $31.20 - Original price $31.20
    Original price
    $31.20
    $31.20 - $31.20
    Current price $31.20
    Sold out
  • B501 SYSTEM SENSOR

    SYSTEM SENSOR
    Original price $9.16
    Original price $9.16 - Original price $9.16
    Original price $9.16
    Current price $3.74
    $3.74 - $3.74
    Current price $3.74
    DISCONTINUED

    INTELLIGENT DETECTOR BASE WITHOUT FLANGE; IVORY; SOLD WITHOUT INDIVIDUAL PACKAGING.

    Original price $9.16
    Original price $9.16 - Original price $9.16
    Original price $9.16
    Current price $3.74
    $3.74 - $3.74
    Current price $3.74
    Save $5.42 Save $0.00