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    Sensors & Switches / Heat Detector

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    Rockwell Disclaimer: The product is used surplus. Radwell is not an authorised surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorised dealers. Because Radwell is not an authorised distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Radwell makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Radwell also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Radwell also makes no representations as to your right to install any such firmware on the product. Radwell will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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    Results 1-50 of 54.
    HONEYWELL SK-HEAT

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    SK-HEAT

    DISCONTINUED BY MANUFACTURER, HEAT DETECTOR, DUAL LED INDICATORS, UL LISTED, 15-32 VDC, 6.5 MA
    ✓ IN STOCK!
    Buy Surplus As Low As £126.67 Price with VAT: £152.00
    £126.67 Price with VAT: £152.00
    HONEYWELL SK-HEAT-W

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    SK-HEAT-W

    HEAT DETECTOR, WHITE, LOW-PROFILE INTELLIGENT, 2-WIRE, INCLUDES BASE, 135 DEGREES C FIXED-TEMPERATURE
    ✓ IN STOCK!
    £49.13 Price with VAT: £58.96 Buy Surplus As Low As £32.43 Price with VAT: £38.91
    £32.43 Price with VAT: £38.91
    HONEYWELL SD505-AHS

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    SD505-AHS

    DISCONTINUED BY MANUFACTURER, ADDRESSABLE HEAT SENSOR, 17-41VDC, 3-15/16IN DIAMETER, 2IN HEIGHT INCLUDING BASE, 135 F-150 F DETECTION RAANGE
    Buy Surplus As Low As £138.91 Price with VAT: £166.69
    £138.91 Price with VAT: £166.69
    HONEYWELL IDP-HEAT

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    IDP-HEAT

    DISCONTINUED BY MANUFACTURER, ADDRESSABLE THERMAL DETECTOR, FIXED TEMP 135`F, PLUG -IN TYPE
    Buy Surplus As Low As £98.27 Price with VAT: £117.92
    £98.27 Price with VAT: £117.92
    HONEYWELL HASOLO-461

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    HASOLO-461

    SOLO-461 CORDLESS HEAT DETC TESTER
    £2,135.57 Price with VAT: £2,562.68 Buy Surplus As Low As £1,281.64 Price with VAT: £1,537.97
    £1,281.64 Price with VAT: £1,537.97
    HONEYWELL IDP-HEAT-HT

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    IDP-HEAT-HT

    DISCONTINUED BY MANUFACTURER, IDPHEATHT, ADDRESSABLE, VARIABLE DETECTOR, HIGH TEMP,135 DEG.F - 190
    Buy Surplus As Low As £122.42 Price with VAT: £146.91
    £122.42 Price with VAT: £146.91
    HONEYWELL IDP-HEAT-ROR

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    IDP-HEAT-ROR

    ADDRESSABLE THRML DETC FIX TEMP 135°F, RATE OF RISE
    £54.41 Price with VAT: £65.29 Buy Surplus As Low As £33.25 Price with VAT: £39.90
    £33.25 Price with VAT: £39.90
    HONEYWELL FS20X-211-24-3

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS20X-211-24-3

    DUAL IR/UV STAINLESS STEEL ENCL. WITH (2) M25 ENTRIES, FM, CFM, ATEX, IECEX FOR CLASS I, ZONE 1
    £4,757.04 Price with VAT: £5,708.45 Buy Surplus As Low As £2,854.23 Price with VAT: £3,425.07
    £2,854.23 Price with VAT: £3,425.07
    HONEYWELL FS24X-211-21-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-211-21-1

    QUADBAND™ IR3+ DETECTOR, COPPER-FREE ALUMINUM ENCL., (2) ¾”NPT ENTRIES FM & ATEX APPROVED
    £5,413.73 Price with VAT: £6,496.48 Buy Surplus As Low As £3,248.69 Price with VAT: £3,898.43
    £3,248.69 Price with VAT: £3,898.43
    HONEYWELL FS24X-211-22-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-211-22-1

    QUADBAND™ IR3+ DETECTOR, 316 STAINLESS STEEL ENCL., (2) ¾” NPT ENTRIES FM & ATEX APPROVED
    £5,840.70 Price with VAT: £7,008.84 Buy Surplus As Low As £3,504.87 Price with VAT: £4,205.85
    £3,504.87 Price with VAT: £4,205.85
    HONEYWELL FS24X-211-23-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-211-23-1

    QUADBAND™ IR3+ DETECTOR, COPPER-FREE ALUMINUM ENCL., (2) M25 ENTRIES FM & ATEX APPROVED
    £5,413.73 Price with VAT: £6,496.48 Buy Surplus As Low As £3,248.69 Price with VAT: £3,898.43
    £3,248.69 Price with VAT: £3,898.43
    HONEYWELL FS24X-911-23-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-911-23-1

    QUADBAND™ IR3+ DETECTOR, COPPER-FREE ALUMINUM ENCL., (2) M25 FM & ATEX APPROVEDENTRIES FM & ATEX AP
    £3,084.71 Price with VAT: £3,701.65 Buy Surplus As Low As £1,851.43 Price with VAT: £2,221.72
    £1,851.43 Price with VAT: £2,221.72
    Repair Yours £1,537.07 Price with VAT: £1,844.48
    HONEYWELL FS24X-911-24-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-911-24-1

    QUADBAND™ IR3+ DETECTOR, 316 STAINLESS STEEL ENCL. (2) 25MM ENTRIES FM & ATEX APPROVED
    £3,496.56 Price with VAT: £4,195.87 Buy Surplus As Low As £2,098.54 Price with VAT: £2,518.25
    £2,098.54 Price with VAT: £2,518.25
    Repair Yours £1,741.86 Price with VAT: £2,090.23
    HONEYWELL 302-135

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-135

    135 °F (57° C) VERTICAL MOUNT.
    £55.17 Price with VAT: £66.20 Buy Surplus As Low As £33.25 Price with VAT: £39.90
    £33.25 Price with VAT: £39.90
    HONEYWELL 302-ET-135

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-ET-135

    135 °F (57° C) VERTICAL MOUNT, INDOOR OR OUTDOOR USE. CAN BE MOUNTED TO 1/2" CONDUIT THREADS FOR ATTACHMENT TO THREADED HUB COVER.
    £56.68 Price with VAT: £68.01 Buy Surplus As Low As £34.01 Price with VAT: £40.81
    £34.01 Price with VAT: £40.81
    HONEYWELL 302-ET-194

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-ET-194

    194 °F (90° C) VERTICAL MOUNT, INDOOR OR OUTDOOR USE, CAN BE MOUNTED TO 1/2" CONDUIT THREADS FOR ATTACHMENT TO THREADED HUB COVER.
    £56.68 Price with VAT: £68.01 Buy Surplus As Low As £34.01 Price with VAT: £40.81
    £34.01 Price with VAT: £40.81
    HONEYWELL 5621

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    5621

    135 F FIXED TEMP/RATE OF RISE HEAT DET. DUAL CIRCUIT
    £36.27 Price with VAT: £43.53 Buy Surplus As Low As £21.91 Price with VAT: £26.30
    £21.91 Price with VAT: £26.30
    HONEYWELL 5622

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    5622

    CONVENTIONAL HEAT DETECTOR, DUAL-CIRCUIT, 194 FIXED/RATE-OF-RISE
    £39.30 Price with VAT: £47.15 Buy Surplus As Low As £24.18 Price with VAT: £29.02
    £24.18 Price with VAT: £29.02
    HONEYWELL 5623

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    5623

    SYSTEM SENSOR, 125 VAC, 6 AMP, 3 AMP 26 VDC, 100 F, ALARM TEMP 135, INPUT 14 22 AWG
    £48.36 Price with VAT: £58.04 Buy Surplus As Low As £29.47 Price with VAT: £35.37
    £29.47 Price with VAT: £35.37
    HONEYWELL 5624

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    5624

    194 F FIXED TEMP ONLY HEAT DET. DUAL CIRCUIT
    £43.83 Price with VAT: £52.60 Buy Surplus As Low As £26.45 Price with VAT: £31.74
    £26.45 Price with VAT: £31.74
    HONEYWELL FSL100-IR3

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FSL100-IR3

    FLAME DETECTOR, WITH RED HOUSE
    £2,873.71 Price with VAT: £3,448.45 Buy Surplus As Low As £1,724.71 Price with VAT: £2,069.65
    £1,724.71 Price with VAT: £2,069.65
    HONEYWELL FSL100-IR3-W

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FSL100-IR3-W

    IR3 FLAME DETECTOR WHITE
    £2,910.90 Price with VAT: £3,493.08 Buy Surplus As Low As £1,747.15 Price with VAT: £2,096.58
    £1,747.15 Price with VAT: £2,096.58
    HONEYWELL FSL100-UV-W

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FSL100-UV-W

    UV FLAME DETECTOR WHITE
    £3,031.06 Price with VAT: £3,637.27 Buy Surplus As Low As £1,818.94 Price with VAT: £2,182.72
    £1,818.94 Price with VAT: £2,182.72
    HONEYWELL FSL100-UVIR

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FSL100-UVIR

    UV/IR FLAME DETECTOR DELIVERS ROBUST, FAST, AND RELIABLE DETECTION OF FLAMING FIRES IN A WIDE RANGE OF APPLICATIONS
    £4,519.00 Price with VAT: £5,422.80 Buy Surplus As Low As £1,520.44 Price with VAT: £1,824.53
    £1,520.44 Price with VAT: £1,824.53
    HONEYWELL FSL100-UVIR-W

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FSL100-UVIR-W

    UVIR FLAME DETECTOR WHITE
    £3,015.19 Price with VAT: £3,618.22 Buy Surplus As Low As £1,809.11 Price with VAT: £2,170.93
    £1,809.11 Price with VAT: £2,170.93
    HONEYWELL IDP-HEAT-ROR-W

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    IDP-HEAT-ROR-W

    INTELLIGENT RATE OF RISE THERMAL SENSOR, WHITE, 15 DEGREE F PER MINUTE, 135 DEGREE F FIXED
    £54.80 Price with VAT: £65.76 Buy Surplus As Low As £32.88 Price with VAT: £39.46
    £32.88 Price with VAT: £39.46
    HONEYWELL WSK-HEAT

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    WSK-HEAT

    SWIFT WIRELESS HEAT DETECTOR INCLUDES B501W BASE
    £173.05 Price with VAT: £207.66 Buy Surplus As Low As £104.28 Price with VAT: £125.14
    £104.28 Price with VAT: £125.14
    HONEYWELL WSK-HEAT-ROR

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    WSK-HEAT-ROR

    SWIFT WIRELESS HEAT RATE-OF-RISE DETECTOR INCLUDES B501W BASE
    £182.12 Price with VAT: £218.54 Buy Surplus As Low As £109.57 Price with VAT: £131.49
    £109.57 Price with VAT: £131.49
    HONEYWELL SK-HEAT-HT-W

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    SK-HEAT-HT-W

    ADDRESSABLE HIGH HEAT DETECTOR, WHITE, INCLUDES BASE
    £61.79 Price with VAT: £74.15 Buy Surplus As Low As £37.07 Price with VAT: £44.49
    £37.07 Price with VAT: £44.49
    HONEYWELL IFP-1000ECS

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    IFP-1000ECS

    IFP-1000 INTEGRATED WITH EMERGENCY COMMUNICATION SYSTEM - NEW PRICE
    £4,147.20 Price with VAT: £4,976.65 Buy Surplus As Low As £2,488.47 Price with VAT: £2,986.17
    £2,488.47 Price with VAT: £2,986.17
    Repair Yours £2,066.05 Price with VAT: £2,479.25
    HONEYWELL SK-HEAT-HT

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    SK-HEAT-HT

    HI-TEMP HEAT DETECTOR (BASE INCLUDED IN SK DEVICE)
    £99.98 Price with VAT: £119.98 Buy Surplus As Low As £60.30 Price with VAT: £72.36
    £60.30 Price with VAT: £72.36
    HONEYWELL SD505-HEAT

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    SD505-HEAT

    DISCONTINUED BY MANUFACTURER, HEAT DETECTOR, LOW PROFILE, 17-41 VOLTS, 0.55 MILLAMPERE STANDBY
    Buy Surplus As Low As £235.84 Price with VAT: £283.01
    £235.84 Price with VAT: £283.01
    HONEYWELL FS20X-211-10

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS20X-211-10

    OBSOLETE, FS20X21110, REPLACEMENT ELECTRONICS MODULE FOR FS20X DETECTORS. MODULE ONLY, STANDARD TEMP. RANGE
    Buy Surplus As Low As £2,629.79 Price with VAT: £3,155.74
    £2,629.79 Price with VAT: £3,155.74
    Repair Yours £2,191.49 Price with VAT: £2,629.79
    HONEYWELL FS20X-211-21-2

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS20X-211-21-2

    FLAME DETECTOR, 18- 32 VDC, 50 - 400 OHMS, 3/4 IN NPT, ULTRAVIOLET
    £4,968.64 Price with VAT: £5,962.36 Buy Surplus As Low As £2,588.22 Price with VAT: £3,105.87
    £2,588.22 Price with VAT: £3,105.87
    HONEYWELL FS20X-211-22-2

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS20X-211-22-2

    DUAL IR/UV STAINLESS STEEL ENCL. WITH (2) ¾”NPT ENTRIES, FM, CFM FOR CLASS I, DIVISION 1, GROUPS A,
    £4,671.65 Price with VAT: £5,605.98 Buy Surplus As Low As £2,803.60 Price with VAT: £3,364.31
    £2,803.60 Price with VAT: £3,364.31
    HONEYWELL FS20X-211-23-3

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS20X-211-23-3

    DUAL IR/UV COPPER-FREE ALUMINUM ENCL. WITH (2) M25 ENTRIES, FM, CFM, ATEX, IECEX FOR CLASS I, ZONE
    £3,177.66 Price with VAT: £3,813.19 Buy Surplus As Low As £1,906.60 Price with VAT: £2,287.91
    £1,906.60 Price with VAT: £2,287.91
    Repair Yours £1,583.16 Price with VAT: £1,899.79
    HONEYWELL FS24X-211-24-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-211-24-1

    QUADBAND™ IR3+ DETECTOR, 316 STAINLESS STEEL ENCL. (2) M25 ENTRIES FM & ATEX APPROVED
    £5,816.52 Price with VAT: £6,979.82 Buy Surplus As Low As £3,490.51 Price with VAT: £4,188.62
    £3,490.51 Price with VAT: £4,188.62
    HONEYWELL FS24X-911-21-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-911-21-1

    QUADBAND™ IR3+ DETECTOR, COPPER-FREE ALUMINUM ENCL., (2) ¾”NPT ENTRIES FM & ATEX APPROVED
    £4,134.36 Price with VAT: £4,961.23 Buy Surplus As Low As £2,480.92 Price with VAT: £2,977.10
    £2,480.92 Price with VAT: £2,977.10
    HONEYWELL FS24X-911-22-1

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FS24X-911-22-1

    QUADBAND™ IR3+ DETECTOR, 316 STAINLESS STEEL ENCL., (2) ¾” NPT ENTRIES FM & ATEX APPROVED
    £8,096.42 Price with VAT: £9,715.70 Buy Surplus As Low As £4,858.31 Price with VAT: £5,829.97
    £4,858.31 Price with VAT: £5,829.97
    HONEYWELL 302-194

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-194

    194 °F (90° C) VERTICAL MOUNT.
    £55.17 Price with VAT: £66.20 Buy Surplus As Low As £33.25 Price with VAT: £39.90
    £33.25 Price with VAT: £39.90
    HONEYWELL 302-AW-135

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-AW-135

    HEAT DETECTOR, 302 SERIES, 135 F (57 C), VERTICAL MOUNT, FLYING LEADS, 6-125 V DC, 0.5-5 A
    £58.19 Price with VAT: £69.83 Buy Surplus As Low As £35.52 Price with VAT: £42.62
    £35.52 Price with VAT: £42.62
    HONEYWELL 302-AW-194

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-AW-194

    194 °F (90° C) VERTICAL MOUNT, FOR INDOOR OR OUTDOOR USE.
    £58.19 Price with VAT: £69.83 Buy Surplus As Low As £35.52 Price with VAT: £42.62
    £35.52 Price with VAT: £42.62
    HONEYWELL 302-EPM-135

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-EPM-135

    135 °F (57° C) EXPLOSION-PROOF.
    £105.80 Price with VAT: £126.96 Buy Surplus As Low As £63.48 Price with VAT: £76.17
    £63.48 Price with VAT: £76.17
    HONEYWELL 302-EPM-194

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    302-EPM-194

    194 °F (90° C) EXPLOSION-PROOF.
    £115.62 Price with VAT: £138.74 Buy Surplus As Low As £69.52 Price with VAT: £83.43
    £69.52 Price with VAT: £83.43
    HONEYWELL 5601P

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    5601P

    135 F FIXED TEMP/RATE OF RISE HEAT DET. SINGLE CIRCUIT
    £19.65 Price with VAT: £23.58 Buy Surplus As Low As £12.09 Price with VAT: £14.51
    £12.09 Price with VAT: £14.51
    HONEYWELL 5602

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    5602

    HEAT DETECTOR, 194 DEGREES F FIXED TEMP/RATE OF RISE, SINGLE CIRCUIT, SCREW TERMINALS, REPLACES HD-602
    £26.46 Price with VAT: £31.76 Buy Surplus As Low As £15.87 Price with VAT: £19.04
    £15.87 Price with VAT: £19.04
    HONEYWELL 5603

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    5603

    135 F FIXED TEMP ONLY HEAT DET. SINGLE CIRCUIT
    £22.67 Price with VAT: £27.20 Buy Surplus As Low As £13.60 Price with VAT: £16.32
    £13.60 Price with VAT: £16.32
    HONEYWELL E2010

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    E2010

    CENTRAL STATION CONTROL ENCODER / DECODER, DESKTOP
    £4,545.45 Price with VAT: £5,454.54 Buy Surplus As Low As £2,727.27 Price with VAT: £3,272.72
    £2,727.27 Price with VAT: £3,272.72
    HONEYWELL SD505-HEAT-BP

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    SD505-HEAT-BP

    ADDRESSABLE HEAT DETECTOR 135?F - 150?F BULK PACK (QTY 10)
    £696.74 Price with VAT: £836.09 Buy Surplus As Low As £418.65 Price with VAT: £502.38
    £418.65 Price with VAT: £502.38
    HONEYWELL FSL100-UV

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    FSL100-UV

    UV FLAME DETECTOR RED
    £2,714.42 Price with VAT: £3,257.31 Buy Surplus As Low As £1,629.26 Price with VAT: £1,955.11
    £1,629.26 Price with VAT: £1,955.11
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