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    Sensors & Switches / Sensor Controller

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    Results 1-50 of 412.
    HONEYWELL R8285B1053

    HONEYWELL

    RESIDEO

    R8285B1053

    120/208/240 DPDT TRANS & RELAY
    ✓ IN STOCK!
    $124.00 Buy Surplus As Low As $75.00
    $75.00
    Repair Yours $200.00
    HONEYWELL L4064-B-2210

    HONEYWELL

    RESIDEO

    L4064-B-2210

    COMBINATION FAN, WITH LIMIT CONTROL, FAN AND LIMIT CONTROLLER, W/ 125 F FAN ON/100 F FAN OFF, 200 F HIGH LIMIT, 11-1/2" INSERTION
    ✓ IN STOCK!
    $227.00 Buy Surplus As Low As $137.00
    $137.00
    Repair Yours $200.00
    HONEYWELL 14000786-001

    HONEYWELL

    14000786-001

    PNEUMATIC RECEIVER GUAGE, 25-125DEGREES FARENHEIT, 1.5INCH DIAMETER
    ✓ IN STOCK!
    $217.00 Buy Surplus As Low As $131.00
    $131.00
    HONEYWELL CP980E1060

    HONEYWELL

    CP980E1060

    VELOCITROL SENSOR CONTROL
    ✓ IN STOCK!
    $1,292.00 Buy Surplus As Low As $982.00
    $982.00
    Repair Yours $645.00
    HONEYWELL R24AA2006

    HONEYWELL

    RESIDEO

    R24AA2006

    HEAT SEQUENCER,ON 1-60 SEC,OFF 75-95 SEC
    ✓ IN STOCK!
    $39.00 Buy Surplus As Low As $24.00
    $24.00
    Repair Yours $200.00
    HONEYWELL R24BA1006

    HONEYWELL

    RESIDEO

    R24BA1006

    HEAT SEQUENCER, 2 SW ON 1-20 SEC,OFF 40-110
    ✓ IN STOCK!
    $41.00 Buy Surplus As Low As $25.00
    $25.00
    Repair Yours $200.00
    HONEYWELL R24BA3002

    HONEYWELL

    RESIDEO

    R24BA3002

    HEAT SEQUENCER, 2 SW ON30-90 SEC, OFF 1-30
    ✓ IN STOCK!
    $41.00 Buy Surplus As Low As $25.00
    $25.00
    Repair Yours $200.00
    HONEYWELL C7041R-2000

    HONEYWELL

    C7041R-2000

    12' DUCT MOUNT AVERAGING SENSOR, 20KOHM
    ✓ IN STOCK!
    $21.00 Buy Surplus As Low As $13.00
    $13.00
    Repair Yours $200.00
    HONEYWELL C7061A1020

    HONEYWELL

    C7061A1020

    ULTRAVIOLET FLAME DETECTOR, DYNAMIC SELF CHECKING PURPLE PEEPER, 115/230VAC, 3/4 INCH MOUNTING, NEMA 4 RATED, -40/175 DEGREE AMBIENT TEMP RATING, FOR USE ON COMBUSTION GAS, OIL AND OTHER FUE ...
    ✓ IN STOCK!
    $3,549.00 Buy Surplus As Low As $2,698.00
    $2,698.00
    Repair Yours $1,768.00
    HONEYWELL C7061A1053

    HONEYWELL

    C7061A1053

    ULTRAVIOLET FLAME DETECTOR, DYNAMIC SELF CHECKING PURPLE PEEPER, 120VAC, 3/4 INCH MOUNTING, 96 INCH COLOR CODED LEAD WIRES, NEMA 4 RATED, -40/175 DEGREE AMBIENT TEMP RATING, DIRECTLY REPLACE ...
    ✓ IN STOCK!
    $3,037.00 Buy Surplus As Low As $1,823.00
    $1,823.00
    Repair Yours $1,514.00
    HONEYWELL CP980C1065

    HONEYWELL

    CP980C1065

    VELOCITROL DA 0-500 FPM
    ✓ IN STOCK!
    $1,099.00 Buy Surplus As Low As $710.60
    $710.60
    Repair Yours $548.00
    HONEYWELL HH57AC078A

    HONEYWELL

    HH57AC078A

    ENTHALPY SENSOR SOLID STATE, AVAILABLE, SURPLUS, NEVER USED, 2 YEAR RADWELL WARRANTY
    ✓ IN STOCK!
    $244.00 Buy Surplus As Low As $124.95
    $124.95
    Repair Yours $200.00
    HONEYWELL C7150B-1004

    HONEYWELL

    C7150B-1004

    TEMPERATURE MIX AIR SENSOR, 300 OHMS, 1/4 INCH MOUNTING
    ✓ IN STOCK!
    $75.00 Buy Surplus As Low As $45.00
    $45.00
    Repair Yours $200.00
    HONEYWELL R7284B1024

    HONEYWELL

    RESIDEO

    R7284B1024

    INTERRUPTED ELECTRONIC OIL PRIMARY, ELECTRICAL CONNECTIONS BURNER MOTOR OIL VALVE IGNITION CAD CELL LIMIT THERMOSTAT AND ALARM, 15 SECOND SAFETY SWITCH TIMING, W/LIGHT
    ✓ IN STOCK!
    $111.00 Buy Surplus As Low As $67.00
    $67.00
    HONEYWELL L4006H 1004

    HONEYWELL

    RESIDEO

    L4006H 1004

    AQUASTAT, BREAKS ON RISE, 100-240F RANGE, 240F FACTORY STOP, MANUAL RESET LESS WELL
    ✓ IN STOCK!
    $372.00 Buy Surplus As Low As $224.00
    $224.00
    Repair Yours $200.00
    HONEYWELL 50053952-020

    HONEYWELL

    RESIDEO

    50053952-020

    BOOST CONTROL, 20-40-60 MINUTE
    ✓ IN STOCK!
    $116.00 Buy Surplus As Low As $89.00
    $89.00
    Repair Yours $200.00
    HONEYWELL W7340C-1000

    HONEYWELL

    W7340C-1000

    ECONOMIZER LOGIC MODULE, 2-10 VDC
    ✓ IN STOCK!
    $713.00 Buy Surplus As Low As $363.80
    $363.80
    Repair Yours $301.95
    HONEYWELL Y7355H1009

    HONEYWELL

    Y7355H1009

    COMMERCIAL THERMOSTAT/SENSOR PACKAGE, T7350H1009-COMMUNICATING THERMOSTAT FOR SINGLE USE-MULTISTAGE CONVENTIONAL OR HEAT PUMP APPLICATIONS (3H/3C), C7041B2005- DUCT MOUNT SENSOR, T7771A1005- ...
    ✓ IN STOCK!
    $1,513.00 Buy Surplus As Low As $1,035.00
    $1,035.00
    Repair Yours $754.00
    HONEYWELL T6031A-1227

    HONEYWELL

    T6031A-1227

    TEMPERATURE CONTROL, REFRIGERATION, 5' CAPILLARY, 24 VAC TO 30 VAC, 24V, GRAY
    ✓ IN STOCK!
    $267.00 Buy Surplus As Low As $161.00
    $161.00
    Repair Yours $200.00
    HONEYWELL TR71

    HONEYWELL

    TR71

    DISCONTINUED BY MANUFACTUREER,TEMPERATURE MODULE, TWO WIRE, ZIO, LCD, WALL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As $182.00
    $182.00
    Repair Yours $200.00
    HONEYWELL TR42-CO2

    HONEYWELL

    TR42-CO2

    DISCONTINUED BY MANUFACTURER, LCD TEMPERATURE, CO2 SYLK, WALL MODULE
    ✓ IN STOCK!
    Buy Surplus As Low As $474.30
    $474.30
    Repair Yours $464.00
    HONEYWELL HR90

    HONEYWELL

    RESIDEO

    HR90

    DIGITAL RADIATOR CONTROLLER
    ✓ IN STOCK!
    $140.00 Buy Surplus As Low As $71.40
    $71.40
    Repair Yours $200.00
    HONEYWELL FE-MF3

    HONEYWELL

    MICROSWITCH

    FE-MF3

    CIRCUIT BOARD ASSEMBLY, PHOTOELECTRIC CONTROLLER
    ✓ IN STOCK!
    $17.00 Buy Surplus As Low As $9.35
    $9.35
    HONEYWELL FMP1

    HONEYWELL

    MICROSWITCH

    FMP1

    DISCONTINUED BY MANUFACTURER, STD P/S BOARD
    ✓ IN STOCK!
    Buy Surplus As Low As $132.00
    $132.00
    HONEYWELL FMP2

    HONEYWELL

    MICROSWITCH

    FMP2

    POWER SUPPLY BOARD, FOR FM SERIES
    ✓ IN STOCK!
    $87.00 Buy Surplus As Low As $44.00
    $44.00
    Repair Yours $200.00
    HONEYWELL FFSRT012R2

    HONEYWELL

    MICROSWITCH

    FFSRT012R2

    SAFETY ELECTRONIC
    ✓ IN STOCK!
    $496.00 Buy Surplus As Low As $248.00
    $248.00
    Repair Yours $207.00
    HONEYWELL FMT-2

    HONEYWELL

    MICROSWITCH

    FMT-2

    PC BOARD
    ✓ IN STOCK!
    $69.30 Buy Surplus As Low As $45.14
    $45.14
    HONEYWELL FE-MLS10S-G30B

    HONEYWELL

    MICROSWITCH

    FE-MLS10S-G30B

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC CONTROLLER, MODULATED, 22-26 VDC, 2.9 W
    ✓ IN STOCK!
    Buy Surplus As Low As $190.00
    $190.00
    HONEYWELL FE-TRB

    HONEYWELL

    MICROSWITCH

    FE-TRB

    DISCONTINUED BY MANUFACTURER, MODULAR CONTROL BASE, TRANSFORMER, STANDARD 2 OCTAL SOCKETS, PLUG-IN DPDT RELAY, 115 VAC, 50/60 HZ, 15 VA
    ✓ IN STOCK!
    Buy Surplus As Low As $103.50
    $103.50
    HONEYWELL HE105A1000

    HONEYWELL

    RESIDEO

    HE105A1000

    12GPD WHOLE HOUSE SMALL BYPASS HUM
    ✓ IN STOCK!
    $266.00 Buy Surplus As Low As $160.00
    $160.00
    Repair Yours $200.00
    HONEYWELL HE205A1000

    HONEYWELL

    RESIDEO

    HE205A1000

    17GPD, WHOLE HOUSE LARGE, BYPASS HUMIDIFIER
    $288.00 Buy Surplus As Low As $173.00
    $173.00
    Repair Yours $200.00
    HONEYWELL FE-TR8B

    HONEYWELL

    MICROSWITCH

    FE-TR8B

    DISCONTINUED BY MANUFACTURER, LOGIC MODULE, 15 VAC / 12 VDC, 50/60 HZ, FOR PHOTOELECTRIC SENSOR, LIGHT/DARK OPERATE, TIME DELAY
    ✓ IN STOCK!
    Buy Surplus As Low As $191.52
    $191.52
    HONEYWELL 272695

    HONEYWELL

    272695

    FRESH AIR CONTROLLER, RANGE HIGH OR LOW, TURNSTYLE ADJUST SWITCH, LED INDICATOR
    ✓ IN STOCK!
    $54.90 Buy Surplus As Low As $32.94
    $32.94
    Repair Yours $200.00
    HONEYWELL YL7220AJ3105

    HONEYWELL

    YL7220AJ3105

    ECONOMIZER YPAK, MOD/2 SENSOR/MS3105
    $885.00 Buy Surplus As Low As $531.00
    $531.00
    Repair Yours $441.00
    HONEYWELL FE-TR8-T82

    HONEYWELL

    MICROSWITCH

    FE-TR8-T82

    DISCONTINUED BY MANUFACTURER, LOGIC MODULE, 15 VAC / 12 VDC, 50/60 HZ, FOR PHOTOELECTRIC SENSOR, LIGHT/DARK OPERATE, TIME DELAY
    ✓ IN STOCK!
    Buy Surplus As Low As $162.79
    $162.79
    HONEYWELL L4064-B-2228

    HONEYWELL

    RESIDEO

    L4064-B-2228

    FAN AND LIMIT CONTROL, FAN/LIMIT COMBINATION, 5" INSERTION, FAN AND LIMIT CONTROLLER. 5 INCH INSERT ; COLOR. MULTICOLORED ; STYLE. MODERN ; BLADE LENGTH. 4 INCHES ; SWITCH TYPE. LIMIT SWITCH ...
    ✓ IN STOCK!
    $219.00 Buy Surplus As Low As $132.00
    $132.00
    Repair Yours $200.00
    HONEYWELL L4064-B-2236

    HONEYWELL

    RESIDEO

    L4064-B-2236

    FAN AND LIMIT CONTROLLER, -40 TO 190 DEGREE OPERATING TEMPERATURE,8" ELEMENT INSERTION, 50 F MAXIMUM AMBIENT AT ELEMENT
    ✓ IN STOCK!
    $219.00 Buy Surplus As Low As $133.00
    $133.00
    HONEYWELL FPC

    HONEYWELL

    RESIDEO

    FPC

    FREEZE PROTECT, OPEN, 38F, CLOSE 48F
    ✓ IN STOCK!
    $100.00 Buy Surplus As Low As $60.00
    $60.00
    Repair Yours $200.00
    HONEYWELL L4079B1058

    HONEYWELL

    L4079B1058

    CONTROLLER, MANUAL RESET, 5 PSI TO 50 PSI, 35 TO 350 KPA, 1/4IN NPT FEMALE FITTING MOUNT
    ✓ IN STOCK!
    $342.00 Buy Surplus As Low As $206.00
    $206.00
    Repair Yours $200.00
    HONEYWELL LP920A-1013

    HONEYWELL

    LP920A-1013

    CONTRL, DA, 30-150 F, 3" CAP
    ✓ IN STOCK!
    $804.00 Buy Surplus As Low As $430.73
    $430.73
    Repair Yours $401.00
    HONEYWELL LP920A-1039

    HONEYWELL

    LP920A-1039

    PNEUMATIC REMOTE BULB TEMPERATURE CONTROL, 5FT CAPILLARY, 30-150DEG F, DIRECT ACTING, FOR DUCT APPLICATIONS
    ✓ IN STOCK!
    $1,448.00 Buy Surplus As Low As $1,101.00
    $1,101.00
    Repair Yours $701.00
    HONEYWELL C7031D-1062

    HONEYWELL

    C7031D-1062

    DISCONTINUED BY MANUFACTURER, TEMPERATURE SENSOR, MOISTURE PROOF SENSOR, ELECTRONIC CIRCUIT, FOR UNITS: XL80/100/500, TEMPERATURE RANGE: 40 TO 240 DEGREES FARENHEIT, WITH WELL
    ✓ IN STOCK!
    Buy Surplus As Low As $131.00
    $131.00
    HONEYWELL C7400A 1046

    HONEYWELL

    C7400A 1046

    ENTHALPY SENSOR, SOLID STATE, ANALOG, AIR DUCT, SUPPLY/RETURN, ECONOMIZING, 4-20 MA, 2 1/4 INCH QUICK CONNECT TERMINALS,
    ✓ IN STOCK!
    $219.60 Buy Surplus As Low As $142.29
    $142.29
    Repair Yours $200.00
    HONEYWELL 5818MNL

    HONEYWELL

    ADEMCO

    5818MNL

    RECESSED DOOR TRANSMITTER, 1 ZONE, 1.5 VDC, 345 MHZ
    ✓ IN STOCK!
    $86.00 Buy Surplus As Low As $47.69
    $47.69
    HONEYWELL 5898

    HONEYWELL

    ADEMCO

    5898

    MOTION SENSOR, WIRELESS X BAND, DUAL TEC, RANGE 50 X 60(90 DEGREE WIDE ANGLE), FOUR 1.5V AA, ENERGIZER L91, 345 MHZ, -4F TO 131F, 7 TO 9 MOUNTING HEIGHT
    ✓ IN STOCK!
    $353.00 Buy Surplus As Low As $212.00
    $212.00
    Repair Yours $200.00
    HONEYWELL YL7220SJ3104

    HONEYWELL

    YL7220SJ3104

    JADE ECON ENT SENSOR 27# DCA
    $874.00 Buy Surplus As Low As $525.00
    $525.00
    Repair Yours $436.00
    HONEYWELL 04905-X25-33-073-X7-000-000

    HONEYWELL

    04905-X25-33-073-X7-000-000

    DISCONTINUED BY MANUFACTURER, CONDUCTIVITY CELL, CONTROL ANALYZER, 120-240VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $120.00
    $120.00
    Repair Yours $200.00
    HONEYWELL 6581800298

    HONEYWELL

    6581800298

    DISCONTINUED BY MANUFACTURER, COLOR SENSOR PROCESSOR, PANEL MOUNTED, 26 PIN CONNECTOR
    ✓ IN STOCK!
    Buy Surplus As Low As $1,980.00
    $1,980.00
    Repair Yours $1,494.00
    HONEYWELL T7515D-1000

    HONEYWELL

    T7515D-1000

    DISCONTINUED BY MANUFACTURER, EXCEL SPACE TEMPERATURE SENSOR
    ✓ IN STOCK!
    Buy Surplus As Low As $219.00
    $219.00
    Repair Yours $200.00
    HONEYWELL T915C-1407

    HONEYWELL

    T915C-1407

    DISCONTINUED BY MANUFACTURER, TEMPERATURE CONTROLLER, PROGRAMMABLE, 15/90 F, 20 DEG CAP, REPLACED BY: T991A1012
    ✓ IN STOCK!
    Buy Surplus As Low As $752.40
    $752.40
    Repair Yours $548.00
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