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    Controls & Indicators / Temperature/Process Control

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    Results 1-50 of 77.
    SIEMENS LDU11.523A27

    SIEMENS

    LANDIS & GYR

    LDU11.523A27

    CONTROL BOX, 220-240VOLT, 5S
    ✓ IN STOCK!
    $1,259.00 Buy Surplus As Low As $756.00
    $756.00
    Repair Yours $628.00
    SIEMENS 533-376

    SIEMENS

    LANDIS & GYR

    533-376

    DISCONTINUED BY MANUFACTURER, TEMPERATURE SENSOR, 20-120F, MODEL: 010334
    ✓ IN STOCK!
    Buy Surplus As Low As $205.20
    $205.20
    Repair Yours $200.00
    SIEMENS 540-122

    SIEMENS

    LANDIS & GYR

    540-122

    DISCONTINUED BY MANUFACTURER, ROOM TEMPERATURE SENSOR, TERMINAL EQUIPMENT CONTROLLER, WITH FAHRENHEIT INDICATION, SETPOINT DIAL, DI SWITCH, REPLACED BY QAA2280.FWSC
    ✓ IN STOCK!
    Buy Surplus As Low As $182.00
    $182.00
    Repair Yours $200.00
    SIEMENS PRV-2.128

    SIEMENS

    LANDIS & GYR

    PRV-2.128

    DISCONTINUED BY MANUFACTURER, CONTROLLER HEATING, 24VAC, 50/60HZ, 100VA
    ✓ IN STOCK!
    Buy Surplus As Low As $433.50
    $433.50
    Repair Yours $283.00
    SIEMENS QAF81.3

    SIEMENS

    LANDIS & GYR

    QAF81.3

    FROST MONITOR 250VAC 2POINT 3000MM CAPILARY TUBE
    ✓ IN STOCK!
    $191.00 Buy Surplus As Low As $146.00
    $146.00
    Repair Yours $200.00
    SIEMENS LOK16.250A27

    SIEMENS

    LANDIS & GYR

    LOK16.250A27

    OIL BURNER CONTROL, UNIVERSAL, 5 AMP, 230 VAC, 50/60 HZ, 3.5 VA, TV 22.5S, TS MAX 5S
    ✓ IN STOCK!
    $2,258.10 Buy Surplus As Low As $1,354.86
    $1,354.86
    Repair Yours $1,250.00
    SIEMENS RWF61.10

    SIEMENS

    LANDIS & GYR

    RWF61.10

    DISCONTINUED BY MANUFACTURER, TEMPERATURE CONTROLLER, UNIVERSAL, POLYGYR, 24 VAC, 50/60 HZ, 1 MA, 0-10 VDC, 1 ANALOG OUTPUT, FOR USE W/ HVAC AND TEMPERATURE SENSORS QAA / AQF, -10 TO +10 DEG ...
    ✓ IN STOCK!
    Buy Surplus As Low As $477.00
    $477.00
    Repair Yours $396.00
    SIEMENS RMU710-2

    SIEMENS

    LANDIS & GYR

    RMU710-2

    DISCONTINUED BY MANUFACTURER, UNIVERSALCONTROLLER, 1 CONTROL LOOP, INTEGRATED SUPERVISORY FUNCTIONS, 4 AMP, 250 VAC, IP20
    ✓ IN STOCK!
    Buy Surplus As Low As $900.00
    $900.00
    Repair Yours $747.00
    SIEMENS PRU10.64

    SIEMENS

    LANDIS & GYR

    PRU10.64

    DISCONTINUED BY MANUFACTURER, UNIVERSAL PROCESS UNIT, WITH P-BUS AND CONNECTIONS FOR BLN OR FLN BUS, AC 24V, 50/60 HZ, PROTECTION CLASS IP20, RS-232 AND BLN / FLN (RS-485) INTERFACE
    ✓ IN STOCK!
    Buy Surplus As Low As $455.00
    $455.00
    Repair Yours $380.00
    SIEMENS RWD32

    SIEMENS

    LANDIS & GYR

    RWD32

    DISCONTINUED BY MANUFACTURER, TEMPERATURE CONTROLLER AC 230V 50/60HZ 6.5VA
    ✓ IN STOCK!
    Buy Surplus As Low As $214.97
    $214.97
    Repair Yours $272.97
    SIEMENS 544-780FA

    SIEMENS

    LANDIS & GYR

    544-780FA

    DISCONTINUED BY MANUFACTURER, ROOM TEMP SENSOR, WITH OVERRIDE, SETPOINT (BEIGE), LED DISPLAY, REPLACED BY QAA2212.FWSN
    ✓ IN STOCK!
    Buy Surplus As Low As $569.00
    $569.00
    Repair Yours $370.00
    SIEMENS LAL3.25

    SIEMENS

    LANDIS & GYR

    LAL3.25

    DISCONTINUED BY MANUFACTURER, OIL BURNER CONTROL, 220-240V, 50-60HZ, 5 AMP, 3.5VA, TV 22.5S, TS MAX 5S
    ✓ IN STOCK!
    Buy Surplus As Low As $270.00
    $270.00
    Repair Yours $249.00
    SIEMENS 536-195

    SIEMENS

    LANDIS & GYR

    536-195

    DISCONTINUED BY MANUFACTURER, ROOM TEMPERATURE SENSOR, 20/120F
    ✓ IN STOCK!
    Buy Surplus As Low As $152.00
    $152.00
    Repair Yours $200.00
    SIEMENS 540-120

    SIEMENS

    LANDIS & GYR

    540-120

    TERMINAL EQUIPMENT CONTROLLER RTS
    ✓ IN STOCK!
    Buy Surplus As Low As $136.00
    $136.00
    Repair Yours $200.00
    SIEMENS 544-770B

    SIEMENS

    LANDIS & GYR

    544-770B

    TEMPERATURE SENSORE, OVERRIDE AND SETPOINT, 18-22AWG
    ✓ IN STOCK!
    $356.00 Buy Surplus As Low As $214.00
    $214.00
    Repair Yours $200.00
    SIEMENS RWD62

    SIEMENS

    LANDIS & GYR

    RWD62

    UNIVERSAL TEMPERATURE CONTROLLER, 2 ANALOG OUTPUTS, 2 DIGITAL INPUTS, 4 DIGITS, 24 V AC, 50 / 60HZ, 2.5 VA, IP20
    ✓ IN STOCK!
    $335.00 Buy Surplus As Low As $201.00
    $201.00
    SIEMENS AZY61.4

    SIEMENS

    LANDIS & GYR

    AZY61.4

    DISCONTINUED BY MANUFACTURER, TEMPERATURE CONTROL MODULE, RANGE: 10-100 DEG FAHRENHEIT
    ✓ IN STOCK!
    Buy Surplus As Low As $103.00
    $103.00
    Repair Yours $200.00
    SIEMENS AZY61.1

    SIEMENS

    LANDIS & GYR

    AZY61.1

    TEMPERATURE CONTROL 5-35DEG
    ✓ IN STOCK!
    Buy Surplus As Low As $75.00
    $75.00
    Repair Yours $200.00
    SIEMENS RXB21.1/FC-10

    SIEMENS

    LANDIS & GYR

    RXB21.1/FC-10

    ROOM TEMPERATURE CONTROLLER, 230 VAC, 50/60 HZ, 12 VA, IP20 (30), FOR 2-PIPE OR 4-PIPE FAN-COIL SYSTEMS
    ✓ IN STOCK!
    $425.00 Buy Surplus As Low As $255.00
    $255.00
    Repair Yours $212.00
    SIEMENS PRV2.64

    SIEMENS

    LANDIS & GYR

    PRV2.64

    DISCONTINUED BY MANUFACTURER, TEMPERATURE CONTROLLER, 24 V AC, 50/60 HZ, 55 VA, 0-50 C
    ✓ IN STOCK!
    Buy Surplus As Low As $600.00
    $600.00
    Repair Yours $498.00
    SIEMENS QAM22

    SIEMENS

    LANDIS & GYR

    QAM22

    DISCONTINUED BY MANUFACTURER, DUCT TEMPERATURE SENSOR, 0.4 M SENSING ELEMENT LENGTH, 50 TO +80 DEGREE C, W/O MOUNTING CLAMPS, IP42
    ✓ IN STOCK!
    Buy Surplus As Low As $180.00
    $180.00
    Repair Yours $200.00
    SIEMENS RK8

    SIEMENS

    LANDIS & GYR

    RK8

    UNIVERSAL TEMPERATURE CONTROLLER 5-32DEG C
    ✓ IN STOCK!
    $229.50 Buy Surplus As Low As $137.70
    $137.70
    Repair Yours $200.00
    SIEMENS LVF1.4401

    SIEMENS

    LANDIS & GYR

    LVF1.4401

    DISCONTINUED BY MANUFACTURER, MEASURING TEMPERATURE MODULE AUTOMATE, 0-10 V
    ✓ IN STOCK!
    Buy Surplus As Low As $84.00
    $84.00
    Repair Yours $200.00
    SIEMENS AZY61.9

    SIEMENS

    LANDIS & GYR

    AZY61.9

    TEMPERATURE CONTROL MODULE
    ✓ IN STOCK!
    $82.07 Buy Surplus As Low As $53.60
    $53.60
    Repair Yours $200.00
    SIEMENS OSC-20

    SIEMENS

    LANDIS & GYR

    OSC-20

    DISCONTINUED BY MANUFACTURER, HEATING CONTROLLER
    ✓ IN STOCK!
    Buy Surplus As Low As $475.01
    $475.01
    Repair Yours $394.79
    SIEMENS RVP-21.51

    SIEMENS

    LANDIS & GYR

    RVP-21.51

    TEMPERATURE CONTROL
    ✓ IN STOCK!
    $780.31 Buy Surplus As Low As $281.89
    $281.89
    Repair Yours $233.96
    SIEMENS RVP31.31

    SIEMENS

    LANDIS & GYR

    RVP31.31

    TEMPERATURE CONTROLLER W/OUTDOOR SENSOR
    ✓ IN STOCK!
    Buy Surplus As Low As $675.29
    $675.29
    Repair Yours $560.49
    SIEMENS PRV1.64

    SIEMENS

    LANDIS & GYR

    PRV1.64

    DISCONTINUED BY MANUFACTURER, HEATER CONTROL, 24VAC, 50/60HZ
    Buy Surplus As Low As $163.78
    $163.78
    Repair Yours $272.97
    SIEMENS 500-055

    SIEMENS

    LANDIS & GYR

    500-055

    DISCONTINUED BY MANUFACTURER, ROOM TEMPERATURE SENSOR, MASTERSET, 1K OHM THERMISTOR, 20-120 DEGREE FAHRENHEIT
    ✓ IN STOCK!
    Buy Surplus As Low As $31.00
    $31.00
    SIEMENS 049840

    SIEMENS

    LANDIS & GYR

    049840

    DISCONTINUED BY MANUFACTURER, TEMPERTURE TRANSMITTER, -40-120F 3' CAP * TEMPERATURE TRANSMITTER. REMOTE BULB. RANGE -40 TO 120F. BULB 1/4 X 4 . 3'CAP
    ✓ IN STOCK!
    Buy Surplus As Low As $123.80
    $123.80
    Repair Yours $200.00
    SIEMENS QAA-23

    SIEMENS

    LANDIS & GYR

    QAA-23

    DISCONTINUED BY MANUFACTURER, ROOM TEMPERATURE SENSOR MODULE
    Buy Surplus As Low As $126.00
    $126.00
    Repair Yours $200.00
    SIEMENS 540-841

    SIEMENS

    LANDIS & GYR

    540-841

    DISCONTINUED BY MANUFACTURER, HEAT PUMP CONTROLLER, 24VAC, 0-10 V SEQUENCE
    Buy Surplus As Low As $601.00
    $601.00
    Repair Yours $475.00
    SIEMENS MS-CIGSSY6P2P-0

    SIEMENS

    LANDIS & GYR

    MS-CIGSSY6P2P-0

    UNITARY CONTROLLER INTERFACE
    $23,585.00 Buy Surplus As Low As $14,151.00
    $14,151.00
    Repair Yours $11,766.00
    SIEMENS 540-516

    SIEMENS

    LANDIS & GYR

    540-516

    DISCONTINUED BY MANUFACTURER, ROOM PRESSURIZATION CONTROLLER, APOGEE, REPLACED BY 540-517
    Buy Surplus As Low As $1,200.00
    $1,200.00
    Repair Yours $790.00
    SIEMENS 540-162A

    SIEMENS

    LANDIS & GYR

    540-162A

    TERMINAL BOX CONTROLLER A-OP
    $435.00 Buy Surplus As Low As $261.00
    $261.00
    Repair Yours $223.00
    SIEMENS 540-664A

    SIEMENS

    LANDIS & GYR

    540-664A

    ROOM TEMPERATURE SENSOR W/STPT BEIGE
    Buy Surplus As Low As $144.00
    $144.00
    Repair Yours $200.00
    SIEMENS 540-662B

    SIEMENS

    LANDIS & GYR

    540-662B

    DISCONTINUED BY MANUFACTURER 01/06/2023, ROOM TEMPERATURE SENSOR, ELECTRONIC, W/OVRD, WHITE
    Buy Surplus As Low As $182.00
    $182.00
    Repair Yours $200.00
    SIEMENS 540-666FA

    SIEMENS

    LANDIS & GYR

    540-666FA

    ROOM TEMPERATURE SENSOR W/IND
    $165.00 Buy Surplus As Low As $99.00
    $99.00
    Repair Yours $200.00
    SIEMENS 540-676FB

    SIEMENS

    LANDIS & GYR

    540-676FB

    SIEMENS, SENSOR, ROOM TEMPERATURE,3-11/32IN HIGH, 2-1/2IN WIDE, 1-1/2IN DEEP, 55-95F, 13-35C, W/SETPOINT, DIGITAL TEMP. DISPLAY, WHITE,
    Buy Surplus As Low As $200.00
    $200.00
    Repair Yours $200.00
    SIEMENS 540-676FA

    SIEMENS

    LANDIS & GYR

    540-676FA

    ROOM TEMPERATURE SENSOR-W/STPT
    Buy Surplus As Low As $192.00
    $192.00
    Repair Yours $200.00
    SIEMENS 544-760B

    SIEMENS

    LANDIS & GYR

    544-760B

    DISCONTINUED BY MANUFACTURER, ROOM TEMPERATURE SENSOR, WHITE, REPLACED BY QAA2212.EWSN OR QAA2212.EWNN
    Buy Surplus As Low As $108.00
    $108.00
    Repair Yours $200.00
    SIEMENS 544-760A

    SIEMENS

    LANDIS & GYR

    544-760A

    DISCONTINUED BY MANUFACTURER, ROOM TEMPERATURE SENSOR, BEIGE, 55F TO 95F (13C TO 35C), REPLACED BY QAA2212.EWSN
    Buy Surplus As Low As $297.00
    $297.00
    SIEMENS 540-106

    SIEMENS

    LANDIS & GYR

    540-106

    DISCONTINUED BY MANUFACTURER, DUAL DUCT CONTROLLER, SYSTEM 600 SERIES, ELECTRONIC OUTPUT, 24 VAC, 50/60 HZ
    Buy Surplus As Low As $1,001.00
    $1,001.00
    Repair Yours $858.90
    SIEMENS 544814B

    SIEMENS

    LANDIS & GYR

    544814B

    TEMPERATURE SENSOR WHITE
    $149.00 Buy Surplus As Low As $90.00
    $90.00
    Repair Yours $200.00
    SIEMENS RMZ786

    SIEMENS

    LANDIS & GYR

    RMZ786

    UNIVERSAL TWIN PUMP MODULE
    Buy Surplus As Low As $210.00
    $210.00
    Repair Yours $200.00
    SIEMENS 540-246

    SIEMENS

    LANDIS & GYR

    540-246

    TEMPERATURE CONTROLLER, 0-130DEG F, 6FT FLEX PROBE
    $139.00 Buy Surplus As Low As $84.00
    $84.00
    Repair Yours $200.00
    SIEMENS QAC-21

    SIEMENS

    LANDIS & GYR

    QAC-21

    TEMPERATURE SENSOR OUTSIDE NI1000
    Buy Surplus As Low As $51.00
    $51.00
    Repair Yours $200.00
    SIEMENS QAC4

    SIEMENS

    LANDIS & GYR

    QAC4

    OUTDOOR WEATHER SENSOR
    Buy Surplus As Low As $72.00
    $72.00
    Repair Yours $200.00
    SIEMENS RMU710-1

    SIEMENS

    LANDIS & GYR

    RMU710-1

    UNIVERSAL HEATING CONTROLLER MODULAR
    $382.00 Buy Surplus As Low As $229.00
    $229.00
    Repair Yours $200.00
    SIEMENS 540-130

    SIEMENS

    LANDIS & GYR

    540-130

    TEMPERATURE CONTROL 4.5VA 24V 50DEGREE C
    $7.42 Buy Surplus As Low As $4.45
    $4.45
    Repair Yours $200.00
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