Product Search

    SEARCH NOW FOR ALL YOUR SILENT KNIGHT SECURITY SYS SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Safety Systems / Gas Monitoring System

    Radwell is not an authorised distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorisation by any rights holder.

    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.

    Filter Results
    Results 1-50 of 77.
    HONEYWELL 9602-0205

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    9602-0205

    GAS DETECTOR, SATELLITE XT SERIES, 4-20 MA, WITHOUT RELAYS, DIN
    IN STOCK!
    £2,519.28 Price with VAT: £3,023.14 Buy Surplus As Low As £916.41 Price with VAT: £1,099.69
    £916.41 Price with VAT: £1,099.69
    Repair Yours £800.65 Price with VAT: £960.78
    HONEYWELL S301-IRF-R123

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R123

    R123 REFRIGERANT GAS SENSOR
    £2,278.48 Price with VAT: £2,734.18 Buy Surplus As Low As £1,367.38 Price with VAT: £1,640.86
    £1,367.38 Price with VAT: £1,640.86
    Repair Yours £1,192.35 Price with VAT: £1,430.82
    HONEYWELL S301-IRF-R404A

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R404A

    R404A REFRIGERANT GAS SENSOR
    £2,152.19 Price with VAT: £2,582.63 Buy Surplus As Low As £1,291.47 Price with VAT: £1,549.76
    £1,291.47 Price with VAT: £1,549.76
    Repair Yours £1,072.32 Price with VAT: £1,286.78
    HONEYWELL S301-IRF-R407C

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R407C

    R407C REFRIGERANT GAS SENSOR
    £2,152.19 Price with VAT: £2,582.63 Buy Surplus As Low As £1,291.47 Price with VAT: £1,549.76
    £1,291.47 Price with VAT: £1,549.76
    Repair Yours £1,072.32 Price with VAT: £1,286.78
    HONEYWELL S301-IRF-R4310

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R4310

    R4310 REFRIGERANT GAS SENSOR
    £2,669.08 Price with VAT: £3,202.90 Buy Surplus As Low As £1,602.05 Price with VAT: £1,922.47
    £1,602.05 Price with VAT: £1,922.47
    Repair Yours £1,330.01 Price with VAT: £1,596.01
    HONEYWELL TPPLBAWA8DNNNNN

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    TPPLBAWA8DNNNNN

    TPPL CONTROLLER BASIC, WALL MOUNT, AC115/220 150W, 8 X MA INPUT WITH 24 X RELAY OUTPUT
    £6,571.45 Price with VAT: £7,885.73 Buy Surplus As Low As £3,943.17 Price with VAT: £4,731.80
    £3,943.17 Price with VAT: £4,731.80
    Repair Yours £3,272.88 Price with VAT: £3,927.45
    HONEYWELL ECO-SC-43

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    ECO-SC-43

    HYDROGEN SULFIDE (H2S) 0-100 PPM
    £1,515.15 Price with VAT: £1,818.18 Buy Surplus As Low As £909.09 Price with VAT: £1,090.91
    £909.09 Price with VAT: £1,090.91
    Repair Yours £754.93 Price with VAT: £905.92
    HONEYWELL M-511474

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-511474

    AIRSCAN™ INFRARED SENSOR, R134A 0/, 3000, ATMOS, NEMA 1 ENCLOSURE
    £2,208.87 Price with VAT: £2,650.64 Buy Surplus As Low As £1,325.47 Price with VAT: £1,590.57
    £1,325.47 Price with VAT: £1,590.57
    Repair Yours £1,100.28 Price with VAT: £1,320.33
    HONEYWELL M-600410

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-600410

    AIRSCAN™ INFRARED SENSOR, R507A 0-3, 3000 PPM, ATMOS, NEMA 1 ENCLOSURE
    £2,208.87 Price with VAT: £2,650.64 Buy Surplus As Low As £1,325.47 Price with VAT: £1,590.57
    £1,325.47 Price with VAT: £1,590.57
    Repair Yours £1,100.28 Price with VAT: £1,320.33
    HONEYWELL M-600428

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-600428

    AIRSCAN™ INFRARED SENSOR, R22 0/3000 PPM, ATMOS, NEMA 1 ENCLOSURE
    £2,208.87 Price with VAT: £2,650.64 Buy Surplus As Low As £1,325.47 Price with VAT: £1,590.57
    £1,325.47 Price with VAT: £1,590.57
    Repair Yours £1,100.28 Price with VAT: £1,320.33
    HONEYWELL M-600469

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-600469

    AIRSCAN™ INFRARED SENSOR,R404A 0/3000 PPM, ATMOS, NEMA 1 ENCLOSURE
    £2,208.87 Price with VAT: £2,650.64 Buy Surplus As Low As £1,325.47 Price with VAT: £1,590.57
    £1,325.47 Price with VAT: £1,590.57
    Repair Yours £1,100.28 Price with VAT: £1,320.33
    HONEYWELL M-700262

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-700262

    AIRSCAN™ INFRARED SENSOR,HFO1234YF 0/500 PPM, ATMOS, NEMA 1 ENCLOSURE CARB COMPLIANT
    £2,379.66 Price with VAT: £2,855.59 Buy Surplus As Low As £1,428.25 Price with VAT: £1,713.90
    £1,428.25 Price with VAT: £1,713.90
    Repair Yours £1,185.67 Price with VAT: £1,422.81
    HONEYWELL M-700263

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-700263

    AIRSCAN™ INFRARED SENSOR,HFO1234YF 0/500 PPM, STAINLESS STEEL ENCLOSURE CARB COMPLIANT
    £2,349.43 Price with VAT: £2,819.31 Buy Surplus As Low As £1,410.11 Price with VAT: £1,692.13
    £1,410.11 Price with VAT: £1,692.13
    Repair Yours £1,170.56 Price with VAT: £1,404.67
    HONEYWELL M-700264

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-700264

    AIRSCAN™ INFRARED SENSOR,HFO1234YF 0/500 PPM, ATMOS, STAINLESS STEEL ENCLOSURE CARB COMPLIANT
    £2,765.06 Price with VAT: £3,318.07 Buy Surplus As Low As £1,659.49 Price with VAT: £1,991.38
    £1,659.49 Price with VAT: £1,991.38
    Repair Yours £1,377.62 Price with VAT: £1,653.14
    HONEYWELL M-700266

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-700266

    AIRSCAN™ INFRARED SENSOR,HFO1234YF 0/1000 PPM, NEMA 1 ENCLOSURE
    £1,794.00 Price with VAT: £2,152.80 Buy Surplus As Low As £1,076.85 Price with VAT: £1,292.22
    £1,076.85 Price with VAT: £1,292.22
    Repair Yours £893.98 Price with VAT: £1,072.77
    HONEYWELL M-700273

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-700273

    AIRSCAN™ INFRARED SENSOR,HFO1234YF 0/3000 PPM, STAINLESS STEEL ENCLOSURE
    £2,182.42 Price with VAT: £2,618.91 Buy Surplus As Low As £1,309.60 Price with VAT: £1,571.52
    £1,309.60 Price with VAT: £1,571.52
    Repair Yours £1,087.43 Price with VAT: £1,304.92
    HONEYWELL M-700274

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    M-700274

    AIRSCAN™ INFRARED SENSOR,HFO1234YF 0/3000 PPM, ATMOS, STAINLESS STEEL ENCLOSURE
    £2,594.27 Price with VAT: £3,113.12 Buy Surplus As Low As £1,556.71 Price with VAT: £1,868.06
    £1,556.71 Price with VAT: £1,868.06
    Repair Yours £1,292.22 Price with VAT: £1,550.67
    HONEYWELL S301-IRF-R134A

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R134A

    REFRIGERANT GAS SENSOR, 10 VDC, 700 MA, FOR USE WITH 301-EM (0-100 PPM)
    £2,152.19 Price with VAT: £2,582.63 Buy Surplus As Low As £1,291.47 Price with VAT: £1,549.76
    £1,291.47 Price with VAT: £1,549.76
    Repair Yours £1,020.18 Price with VAT: £1,224.21
    HONEYWELL S301-IRF-R410A

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R410A

    R410A REFRIGERANT GAS SENSOR
    £2,152.19 Price with VAT: £2,582.63 Buy Surplus As Low As £1,291.47 Price with VAT: £1,549.76
    £1,291.47 Price with VAT: £1,549.76
    Repair Yours £1,072.32 Price with VAT: £1,286.78
    HONEYWELL XCL-LB-CH4-RA

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-CH4-RA

    FLAMMABLE 100 %LEL, MA RELAYS
    £2,637.34 Price with VAT: £3,164.81 Buy Surplus As Low As £1,582.41 Price with VAT: £1,898.89
    £1,582.41 Price with VAT: £1,898.89
    Repair Yours £1,314.14 Price with VAT: £1,576.97
    HONEYWELL XCL-LB-CH4-RM

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-CH4-RM

    FLAMMABLE 100 %LEL, MODBUS RELAYS
    £2,836.09 Price with VAT: £3,403.31 Buy Surplus As Low As £1,701.80 Price with VAT: £2,042.17
    £1,701.80 Price with VAT: £2,042.17
    Repair Yours £1,413.13 Price with VAT: £1,695.76
    HONEYWELL XCL-LB-CO-RA

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-CO-RA

    CO 300PPM, MA RELAYS
    £2,313.91 Price with VAT: £2,776.69 Buy Surplus As Low As £1,388.95 Price with VAT: £1,666.74
    £1,388.95 Price with VAT: £1,666.74
    Repair Yours £1,153.18 Price with VAT: £1,383.81
    HONEYWELL XCL-LB-CO-RM

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-CO-RM

    CO 300PPM, MODBUS RELAYS
    £2,387.97 Price with VAT: £2,865.56 Buy Surplus As Low As £1,432.78 Price with VAT: £1,719.34
    £1,432.78 Price with VAT: £1,719.34
    Repair Yours £1,189.45 Price with VAT: £1,427.34
    HONEYWELL XCL-LB-NH3-RA

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-NH3-RA

    NH3 100PPM, MA RELAYS
    £3,680.95 Price with VAT: £4,417.14 Buy Surplus As Low As £2,208.87 Price with VAT: £2,650.64
    £2,208.87 Price with VAT: £2,650.64
    Repair Yours £1,834.05 Price with VAT: £2,200.86
    HONEYWELL XCL-LB-NH3-RM

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-NH3-RM

    NH3 100PPM, MODBUS RELAYS
    £3,929.57 Price with VAT: £4,715.48 Buy Surplus As Low As £2,357.74 Price with VAT: £2,829.29
    £2,357.74 Price with VAT: £2,829.29
    Repair Yours £1,957.23 Price with VAT: £2,348.67
    HONEYWELL XCL-LB-NO2-RA

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-NO2-RA

    NO2 20PPM, MA RELAYS
    £2,387.97 Price with VAT: £2,865.56 Buy Surplus As Low As £1,432.78 Price with VAT: £1,719.34
    £1,432.78 Price with VAT: £1,719.34
    Repair Yours £1,189.45 Price with VAT: £1,427.34
    HONEYWELL XCL-LB-NO2-RM

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-LB-NO2-RM

    NO2 20PPM, MODBUS RELAYS
    £2,537.59 Price with VAT: £3,045.11 Buy Surplus As Low As £1,522.71 Price with VAT: £1,827.25
    £1,522.71 Price with VAT: £1,827.25
    Repair Yours £1,264.26 Price with VAT: £1,517.12
    HONEYWELL XCL-SC-H2S

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-SC-H2S

    XCL/XRL SENSOR-H2S
    £235.02 Price with VAT: £282.02 Buy Surplus As Low As £141.31 Price with VAT: £169.58
    £141.31 Price with VAT: £169.58
    Repair Yours £151.14 Price with VAT: £181.36
    HONEYWELL XCL-SC-NH3

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-SC-NH3

    XCL/XRL SENSOR-NH3
    £408.83 Price with VAT: £490.59 Buy Surplus As Low As £245.60 Price with VAT: £294.72
    £245.60 Price with VAT: £294.72
    Repair Yours £204.04 Price with VAT: £244.84
    HONEYWELL XCL-SC-NO2

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-SC-NO2

    XCL/XRL SENSOR-NO2
    £343.84 Price with VAT: £412.60 Buy Surplus As Low As £206.30 Price with VAT: £247.56
    £206.30 Price with VAT: £247.56
    Repair Yours £171.54 Price with VAT: £205.85
    HONEYWELL XCL-VEA-CO-RA

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-VEA-CO-RA

    VESDA CO 300PPM 4-20MA REL VEA
    £1,916.42 Price with VAT: £2,299.70 Buy Surplus As Low As £1,150.15 Price with VAT: £1,380.18
    £1,150.15 Price with VAT: £1,380.18
    Repair Yours £955.19 Price with VAT: £1,146.22
    HONEYWELL XCL-VEA-CO-RA-5

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-VEA-CO-RA-5

    VESDA CO 300PPM 4-20MA REL XCL VEA
    £6,764.90 Price with VAT: £8,117.88 Buy Surplus As Low As £4,059.55 Price with VAT: £4,871.45
    £4,059.55 Price with VAT: £4,871.45
    Repair Yours £3,369.60 Price with VAT: £4,043.52
    HONEYWELL XCL-VEA-CO-RM

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-VEA-CO-RM

    VESDA CO 300PPM MODBUS REL XCL VEA
    £2,015.41 Price with VAT: £2,418.50 Buy Surplus As Low As £1,209.85 Price with VAT: £1,451.82
    £1,209.85 Price with VAT: £1,451.82
    Repair Yours £1,004.31 Price with VAT: £1,205.17
    HONEYWELL XCL-VEA-H2-RA-5

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-VEA-H2-RA-5

    VESDA H2 1000PPM 4-20MA REL XCL VEA
    £8,057.88 Price with VAT: £9,669.46 Buy Surplus As Low As £4,834.88 Price with VAT: £5,801.85
    £4,834.88 Price with VAT: £5,801.85
    Repair Yours £4,013.45 Price with VAT: £4,816.14
    HONEYWELL XCL-VEA-H2-RM

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-VEA-H2-RM

    VESDA H2 1000PPM MODBUS REL XCL VEA
    £3,581.95 Price with VAT: £4,298.34 Buy Surplus As Low As £2,149.17 Price with VAT: £2,579.01
    £2,149.17 Price with VAT: £2,579.01
    Repair Yours £1,784.17 Price with VAT: £2,141.01
    HONEYWELL XCL-XRL-SC-CO

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    XCL-XRL-SC-CO

    VESDA SENSEPOINT XCL/XRL REPLACEMENT SENSOR - CO 300PPM
    £235.02 Price with VAT: £282.02 Buy Surplus As Low As £141.31 Price with VAT: £169.58
    £141.31 Price with VAT: £169.58
    Repair Yours £151.14 Price with VAT: £181.36
    HONEYWELL 129426-L3

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    129426-L3

    COMBUSTIBLE EXPLOSION PROOF SENSOR - (GAIN 1.3-1.599 / HYDROGEN)
    £869.79 Price with VAT: £1,043.75 Buy Surplus As Low As £522.18 Price with VAT: £626.61
    £522.18 Price with VAT: £626.61
    Repair Yours £433.76 Price with VAT: £520.52
    HONEYWELL S301-IRF-R11

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R11

    R11 REFRIGERANT GAS SENSOR
    £2,152.19 Price with VAT: £2,582.63 Buy Surplus As Low As £1,291.47 Price with VAT: £1,549.76
    £1,291.47 Price with VAT: £1,549.76
    Repair Yours £1,072.32 Price with VAT: £1,286.78
    HONEYWELL S301-IRF-R125

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    S301-IRF-R125

    R125 REFRIGERANT GAS SENSOR
    £2,152.19 Price with VAT: £2,582.63 Buy Surplus As Low As £1,291.47 Price with VAT: £1,549.76
    £1,291.47 Price with VAT: £1,549.76
    Repair Yours £1,072.32 Price with VAT: £1,286.78
    HONEYWELL TPPLBDWA2NNNNNN

    HONEYWELL

    SILENT KNIGHT SECURITY SYS

    TPPLBDWA2NNNNNN

    TPPL CONTROLLER BASIC, WALL MOUNT, DC POWERED, 2 X MA INPUT
    £2,817.20 Price with VAT: £3,380.64 Buy Surplus As Low As £1,690.47 Price with VAT: £2,028.56
    £1,690.47 Price with VAT: £2,028.56
    Repair Yours £1,403.31 Price with VAT: £1,683.97
    1 2