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    Results 1-50 of 84.
    SIEMENS DT-135WP

    SIEMENS

    PYROTRONICS

    DT-135WP

    FIRE DECTOR, THERMAL, RATE COMP. FIXED, 135 DEG, WEATHERPROOF, 2500 SQ FT MAX
    ✓ IN STOCK!
    $151.73 Buy Surplus As Low As $101.15
    $101.15
    SIEMENS HFP-11

    SIEMENS

    HFP-11

    DISCONTINUED BY MANUFACTURER, FIRE DETECTOR, (500-033290), FOR FIREFINDER XLS AND FS-250 PANELS, PLUG-IN, 2-WIRE, MULTI-SENSOR, PHOTOELECTRIC/THERMAL INPUTS, 135 DEG F RATED
    ✓ IN STOCK!
    Buy Surplus As Low As $413.70
    $413.70
    SIEMENS FDOOT441

    SIEMENS

    PYROTRONICS

    FDOOT441

    DUAL OPTICAL/HEAT DETECTOR, USED WITH DESIGO FIRE SAFETY CONTROL PANELS, REDUNDANT, OPTICAL/THERMAL SENSOR, FORWARD/BACKWARD LIGHT SCATTERING, PROGRAMMABLE, HIGH-SENSITIVITY, MEETS NFPA 76 S ...
    ✓ IN STOCK!
    $215.93 Buy Surplus As Low As $164.11
    $164.11
    SIEMENS DT-275EP

    SIEMENS

    PYROTRONICS

    DT-275EP

    275 DEG EXP PROOF THERMAL
    ✓ IN STOCK!
    $310.93 Buy Surplus As Low As $8.08
    $8.08
    SIEMENS TRI-S

    SIEMENS

    PYROTRONICS

    TRI-S

    FIRE ALARM, INTELLIGENT INTERFACE, INPUT MODULE, SINGLE INPUT, 1 LB 4.5 X 4.25 X 2 INCH
    ✓ IN STOCK!
    $1,544.85 Buy Surplus As Low As $474.70
    $474.70
    Repair Yours $415.00
    SIEMENS DT-200F

    SIEMENS

    PYROTRONICS

    DT-200F

    DISCONTINUED BY MANUFACTURER, THERMAL FIRE DETECTOR, FIXED TEMPERATURE, 200 DEG
    ✓ IN STOCK!
    $75.72 Buy Surplus As Low As $59.71
    $59.71
    SIEMENS ILP-2

    SIEMENS

    PYROTRONICS

    ILP-2

    DISCONTINUED BY MANUFACTURER, SMOKE DETECTOR, PHOTOELECTRIC, FOR USE W/ SIEMENS XL3/ MXL/ IXL SERIES
    ✓ IN STOCK!
    Buy Surplus As Low As $168.53
    $168.53
    SIEMENS RL-30

    SIEMENS

    PYROTRONICS

    RL-30

    DISCONTINUED BY MANUFACTURER, REMOTE LAMP, RND PLATE FOR OCTG
    ✓ IN STOCK!
    $91.18 Buy Surplus As Low As $54.71
    $54.71
    SIEMENS DT-135R

    SIEMENS

    PYROTRONICS

    DT-135R

    THERMAL FIRE DETECTOR, RATE OF RISE / FIXED TEMPERATURE, 135 DEGREE F
    ✓ IN STOCK!
    $63.04 Buy Surplus As Low As $37.37
    $37.37
    SIEMENS DF1101-EX

    SIEMENS

    DF1101-EX

    DISCONTINUED BY MANUFACTURER, FLAME DETECTOR UNIT, INFRARED, 3 SENSORS, 16-28 VDC, 0.5 MA, IP67, FOR EXPLOSION-HAZARD AREAS OF ZONES 1 AND 2, (BPZ:5166750001)
    ✓ IN STOCK!
    Buy Surplus As Low As $2,846.00
    $2,846.00
    SIEMENS FDOOTC441

    SIEMENS

    PYROTRONICS

    FDOOTC441

    DUAL OPTICAL/ HEAT/ CARBON MONOXIDE DETECTOR , FDOOTC441
    ✓ IN STOCK!
    $387.12 Buy Surplus As Low As $300.30
    $300.30
    SIEMENS FDO421

    SIEMENS

    PYROTRONICS

    FDO421

    SMOKE DETECTOR, OPTICAL, PHOTOELECTRIC, PLUG-IN, 2-WIRE, 16-30 VDC, 280 AMP, 0-95% NON CONDENSING, SELF-TESTING
    ✓ IN STOCK!
    $182.00 Buy Surplus As Low As $110.11
    $110.11
    SIEMENS S54329-F25-A2

    SIEMENS

    S54329-F25-A2

    SMOKE DETECTOR, HEAT DETECTOR, SLSW SERIES, MULTI-LEVEL SETTINGS, LED STROBE, 16-33 VOLTS, 15CD: 30 DC MA; 40 FWR MA, 30CD: 40 DC MA; 59 FWR MA, 75CD: 102 DC MA; 149 FWR MA, 110CD: 201 DC MA ...
    ✓ IN STOCK!
    $69.00 Buy Surplus As Low As $39.40
    $39.40
    SIEMENS 500-649570

    SIEMENS

    500-649570

    ELECTRONICS PACKAGE, FS-REL
    ✓ IN STOCK!
    $173.72 Buy Surplus As Low As $87.47
    $87.47
    Repair Yours $300.00
    SIEMENS FDOT421

    SIEMENS

    PYROTRONICS

    FDOT421

    SMOKE DETECTOR, OPTICAL/THERMAL, PHOTOELECTRIC, PLUG-IN, 2-WIRE, 16-30 VDC, 280 AMP, 0-95% NON CONDENSING, SELF-TESTING
    ✓ IN STOCK!
    $192.00 Buy Surplus As Low As $91.42
    $91.42
    SIEMENS ABHW-4B

    SIEMENS

    PYROTRONICS

    ABHW-4B

    BUZZER VERSION AUDIBLE BASE, STANDARD 3,000 HZ TONE, COMPLIES WITH NFPA 72
    ✓ IN STOCK!
    $183.09 Buy Surplus As Low As $93.13
    $93.13
    SIEMENS ABHW-4S

    SIEMENS

    PYROTRONICS

    ABHW-4S

    DETECTION BASE, FIRE ALARM INTELLIGENT AUDIBLE SOUNDER BASE, DESIGNED FOR SLEEPING AREAS, 520 HZ LOW FREQUENCY AUDIBLE BASE, NFPA 72 CODE REQUIREMENTS, NFPA 720 CARBON MONOXIDE REQUIREMENTS, ...
    ✓ IN STOCK!
    $154.13 Buy Surplus As Low As $92.48
    $92.48
    SIEMENS HI121

    SIEMENS

    PYROTRONICS

    HI121

    HEAT DETECTOR, FOR CONVENTIONAL HEAT ONLY, 3 COLOR LIGHT EMITTING DIODE, S54372-F3-A1
    ✓ IN STOCK!
    $85.18 Buy Surplus As Low As $51.11
    $51.11
    SIEMENS OH921

    SIEMENS

    PYROTRONICS

    OH921

    OPTICAL & THERMAL DETECTOR, 2-WIRE, SURFACE MOUNTING BASE, SCREW CLAMP CONTACTS
    ✓ IN STOCK!
    $88.00 Buy Surplus As Low As $39.52
    $39.52
    SIEMENS CDT-135R

    SIEMENS

    CDT-135R

    THERMAL FIRE DETECTOR, CDT-SERIES, 57 C / 135 F, RATE-OF-RISE, FIXED
    ✓ IN STOCK!
    $53.43 Buy Surplus As Low As $40.60
    $40.60
    SIEMENS PE-11C

    SIEMENS

    PE-11C

    DISCONTINUED BY MANUFACTURER, SMOKE DETECTOR CONVENTIONAL PHOTOELECTRIC, TWO-WIRE, PLUG-IN
    ✓ IN STOCK!
    Buy Surplus As Low As $105.44
    $105.44
    SIEMENS OH121

    SIEMENS

    PYROTRONICS

    OH121

    THERMAL SMOKE DETECTOR, AUTO-SENSITIVITY, 3 COLOR LED, S54372-F2-A1
    ✓ IN STOCK!
    $128.00 Buy Surplus As Low As $82.39
    $82.39
    SIEMENS QRA2

    SIEMENS

    LANDIS & GYR

    QRA2

    UV FLAME DETETOR, NORMAL SENSITIVITY, WITHOUT FLANGE/CLAMP
    ✓ IN STOCK!
    $313.60 Buy Surplus As Low As $155.00
    $155.00
    SIEMENS 500-390674

    SIEMENS

    PYROTRONICS

    500-390674

    REMOTE ALARM LAMP, 1 LED, RECTANGULAR/SINGLE GANG, MODEL RLI-2
    ✓ IN STOCK!
    $57.09 Buy Surplus As Low As $25.50
    $25.50
    SIEMENS RLW-11

    SIEMENS

    RLW-11

    REMOTE LAMP MODULE - WALL MOUNT
    ✓ IN STOCK!
    $44.60 Buy Surplus As Low As $35.14
    $35.14
    SIEMENS HI320C

    SIEMENS

    HI320C

    DISCONTINUED BY MANUFACTURER, HEAT DETECTOR, 16-29V, CLASS A1R, IMPACT PROOF HOUSING, LED RESPONSE INDICATOR, SCREWLESS SPRING TERMINALS
    ✓ IN STOCK!
    Buy Surplus As Low As $32.18
    $32.18
    SIEMENS RL-40

    SIEMENS

    PYROTRONICS

    RL-40

    REMOTE LAMP, RCTGL PLATE FOR SWITCH (PART# 500-390672) , RL-40
    ✓ IN STOCK!
    $97.72 Buy Surplus As Low As $58.63
    $58.63
    SIEMENS US2:2021872-001

    SIEMENS

    US2:2021872-001

    FLAME PHOTOMETRIC DETECTOR II, BASIC ASSEMBLY
    ✓ IN STOCK!
    $5,921.00 Buy Surplus As Low As $2,011.34
    $2,011.34
    SIEMENS FDT421

    SIEMENS

    PYROTRONICS

    FDT421

    HEAT DETECTOR, PROGRAMMABLE, 7 FIELD SELECTABLE SETTINGS, COMPATIBLE WITH SIEMENS MODEL H-SERIES DEVICES, TRI-COLOR LED STATUS INDICATOR, WHITE COLOR, CEILING MOUNT
    ✓ IN STOCK!
    $177.00 Buy Surplus As Low As $135.00
    $135.00
    SIEMENS 500-693376

    SIEMENS

    500-693376

    DISCONTINUED BY MANUFACTURER, MANUAL PULL STATION, SCREW TERMINALS (3X), 2 WIRE TERMINATION (FLYING LEADS)
    ✓ IN STOCK!
    Buy Surplus As Low As $79.82
    $79.82
    SIEMENS DT-200WP

    SIEMENS

    PYROTRONICS

    DT-200WP

    THERMAL DETECTOR, RATE COMP, FIXED, 200 DEG, WTHPRF
    ✓ IN STOCK!
    $130.66 Buy Surplus As Low As $74.74
    $74.74
    SIEMENS DT-135F

    SIEMENS

    PYROTRONICS

    DT-135F

    FIXED TEMPERATURE 135 DEG.
    $53.00 Buy Surplus As Low As $32.00
    $32.00
    SIEMENS ILED-HW

    SIEMENS

    PYROTRONICS

    ILED-HW

    REMOTE ALARM LAMP, WALL MOUNT, MULTI-COLOR LED, 5INCH DIAMETER, 1 MA CURRENT DRAW
    $47.47 Buy Surplus As Low As $29.29
    $29.29
    SIEMENS DT-160EP

    SIEMENS

    PYROTRONICS

    DT-160EP

    HEAT DETECTOR, RC-FT TMP, 160 DEG, EXPLOSION PRF
    $366.00 Buy Surplus As Low As $220.00
    $220.00
    SIEMENS QR12B2.B180B

    SIEMENS

    QR12B2.B180B

    QRI2B2.B180B - INFRARED FLAME DETECTOR, LATERAL, CABLE 180CM, STRIPPED+FERRULES
    $1,380.00 Buy Surplus As Low As $836.28
    $836.28
    SIEMENS DF1151-EX

    SIEMENS

    DF1151-EX

    DISCONTINUED BY MANUFACTURER, FLAME DETECTOR, INFRARED, CERBERUS, WAVEREX, INTERACTIVE, FOR EXPLOSION-HAZARD AREAS OF ZONES 1 AND 2
    Buy Surplus As Low As $4,800.00
    $4,800.00
    Repair Yours $3,984.00
    SIEMENS DS-2

    SIEMENS

    DS-2

    FIRE DETECTOR, WHITE,
    $106.00 Buy Surplus As Low As $53.00
    $53.00
    SIEMENS 500-086448

    SIEMENS

    500-086448

    FIRE DETECTOR, HIGH ALT/VEL ION DETECTOR
    $237.00 Buy Surplus As Low As $119.00
    $119.00
    SIEMENS DT-200CS

    SIEMENS

    PYROTRONICS

    DT-200CS

    DISCONTINUED BY MANUFACTURER, THERMAL FIRE DETECTOR, FIXED TEMPERTURE: 200 DEGREES, CONTACT RATINGS: 6-125VAC, 5 AMP, 6-25 VDC
    Buy Surplus As Low As $126.92
    $126.92
    SIEMENS SR-35-RC

    SIEMENS

    PYROTRONICS

    SR-35-RC

    PC BOARD, MULTIPLE RELAY, SDPT, 2 A, ISA CERTIFIED, STAND-OFF MOUNT
    $1,012.00 Buy Surplus As Low As $608.00
    $608.00
    SIEMENS S54372F3A1

    SIEMENS

    S54372F3A1

    DETECTOR
    $170.00 Buy Surplus As Low As $102.00
    $102.00
    SIEMENS 20/20MI-11SF

    SIEMENS

    PYROTRONICS

    20/20MI-11SF

    FLAME DETECTOR, MINI TRIPLE IR (IR3), OPERATING VOLTAGE: 18-32 VDC, 1-10 TO 40M, 2 RELAYS (ALARM AND FAULT-NOT WITH EX), 0-20MA (SINK OR SOURCE), RS-485 MODBUS COMPATIBLE, HORIZONTAL 100; VE ...
    $4,558.00 Buy Surplus As Low As $2,735.00
    $2,735.00
    SIEMENS PYROP121

    SIEMENS

    PYROP121

    PHOTOELECTRIC SMOKE DETECTOR, DIMENSION 4 X 4 X 2 IN, EQUIPPED WITH MICROPROCESSOR-CONTROLLED CIRCUIT
    $101.00 Buy Surplus As Low As $61.00
    $61.00
    SIEMENS 20/20ML-12SF

    SIEMENS

    PYROTRONICS

    20/20ML-12SF

    MINI UV/IR FLM DET PLG SS FM
    $3,069.00 Buy Surplus As Low As $1,842.00
    $1,842.00
    SIEMENS DI-3IS

    SIEMENS

    PYROTRONICS

    DI-3IS

    DISCONTINUED BY MANUFACTURER, IONIZATION SMOKE DETECTOR, INTRINSICALLY SAFE, NORMAL 100UA, ALARM 80MA, 21 +3 VDC, +32F (0C) TO +100F (38C) PER UL
    Buy Surplus As Low As $390.00
    $390.00
    SIEMENS DT-200R

    SIEMENS

    PYROTRONICS

    DT-200R

    FIRE DETECTOR, RATE OF RISE/FIXED TEMP, 200DEG,
    $51.00 Buy Surplus As Low As $31.00
    $31.00
    SIEMENS DT-190EP

    SIEMENS

    PYROTRONICS

    DT-190EP

    HEAT DETECTOR, R.C.-F.T. TMP 190 DEG, EXPLOSION PROOF
    $515.10 Buy Surplus As Low As $269.67
    $269.67
    SIEMENS DT-135CL

    SIEMENS

    PYROTRONICS

    DT-135CL

    THERMAL FIRE DETECTOR, 135F FIXED TEMP, 1AMP, 6-25VDC
    Buy Surplus As Low As $146.55
    $146.55
    SIEMENS OSI-90

    SIEMENS

    PYROTRONICS

    OSI-90

    SMOKE DETECTOR, IMAGER, OSID, 80 DEGREE COVERAGE, BEAM DETECTOR, 30-150 M RANGE
    $1,594.79 Buy Surplus As Low As $957.48
    $957.48
    SIEMENS DT3P-135

    SIEMENS

    PYROTRONICS

    DT3P-135

    DISCONTINUED BY MANUFACTURER, THERMAL FIRE DETECTOR, 135 DEGREE/F, RATE COMPENSATION, PLUG-IN DETECTOR
    Buy Surplus As Low As $105.07
    $105.07
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