Product Search

    SEARCH NOW FOR ALL YOUR LAND SOLUTIONS

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

    Radwell is not an authorized 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 authorization by any rights holder.

    Filter Results
    Results 751-800 of 934.
    SIEMENS 540-650B

    SIEMENS

    LANDIS & GYR

    540-650B

    ROOM TEMPERATURE SENSOR, SERIES 2000, INTERACTIVE, WHITE LCD DISPLAY, TEC, DIGITAL SET POINT ADJUSTMENT
    ✓ IN STOCK!
    $599.14 Buy Surplus As Low As $325.28
    $325.28
    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 $996.00
    SIEMENS 540-511A

    SIEMENS

    LANDIS & GYR

    540-511A

    HVAC CONTROL SYSTEM, CLASS 2, 24VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $790.81
    $790.81
    Repair Yours $555.29
    SIEMENS 540-509

    SIEMENS

    LANDIS & GYR

    540-509

    DISCONTINUED BY MANUFACTURER, UNIT VENT CONTROLLER SYSTEM, 24 VAC, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $785.42
    $785.42
    Repair Yours $601.75
    SIEMENS 540-506N

    SIEMENS

    LANDIS & GYR

    540-506N

    DISCONTINUED BY MANUFACTURER, TEC, DUAL DUCT, CONTROLLER, NO REPLACEMENT
    ✓ IN STOCK!
    Buy Surplus As Low As $678.28
    $678.28
    Repair Yours $525.00
    SIEMENS 540-506

    SIEMENS

    LANDIS & GYR

    540-506

    DISCONTINUED BY MANUFACTURER, DUAL DUCT CONTROLLER, APOGEE AUTOMATION, 2 AIR VELOCITY SENSOR, 12 VA MAX, 24 VAC, ELEC OUT
    Buy Surplus As Low As $757.34
    $757.34
    Repair Yours $611.46
    SIEMENS 540-505

    SIEMENS

    LANDIS & GYR

    540-505

    DISCONTINUED BY MANUFACTURER, HEAT PUMP CONTROLLER, APOGEE, MULTI-STAGE
    Buy Surplus As Low As $630.42
    $630.42
    Repair Yours $498.00
    SIEMENS 540-400

    SIEMENS

    LANDIS & GYR

    540-400

    DISCONTINUED BY MANUFACTURER, VENT CONTROLLER UNIT
    Buy Surplus As Low As $420.00
    $420.00
    Repair Yours $350.00
    SIEMENS 540-380

    SIEMENS

    LANDIS & GYR

    540-380

    DISCONTINUED BY MANUFACTURER, AUTOZERO MODULE, TEC TERMINAL, INSTALLATION KIT
    Buy Surplus As Low As $98.98
    $98.98
    SIEMENS 540-246

    SIEMENS

    LANDIS & GYR

    540-246

    TEMPERATURE CONTROLLER, 0-130DEG F, 6FT FLEX PROBE
    $140.39 Buy Surplus As Low As $84.84
    $84.84
    Repair Yours $300.00
    SIEMENS 540-245

    SIEMENS

    LANDIS & GYR

    540-245

    DISCONTINUED BY MANUFACTURER, AVERAGING TEMPERATURE SENSOR ASSEMBLY, 3 FT, 100K OHM THERMISTOR
    ✓ IN STOCK!
    Buy Surplus As Low As $32.21
    $32.21
    SIEMENS 540-244

    SIEMENS

    LANDIS & GYR

    540-244

    DISCONTINUED BY MANUFACTURER, TEMPERATURE SENSOR RIGID 18INCH
    Buy Surplus As Low As $83.00
    $83.00
    SIEMENS 540-205

    SIEMENS

    LANDIS & GYR

    540-205

    DISCONTINUED BY MANUFACTURER, UNIT VENT CONTROLLER, 0-10VDC, NO REPLACEMENT
    Buy Surplus As Low As $564.00
    $564.00
    Repair Yours $469.00
    SIEMENS 540-167

    SIEMENS

    LANDIS & GYR

    540-167

    DISCONTINUED BY MANUFACTURER, PNEUMATIC OUTPUT MODULE
    ✓ IN STOCK!
    Buy Surplus As Low As $133.12
    $133.12
    Repair Yours $300.00
    SIEMENS 540-166

    SIEMENS

    LANDIS & GYR

    540-166

    DISCONTINUED BY MANUFACTURER, PNEUMATIC OUTPUT MODULE, WITH GAUGE 0-200
    Buy Surplus As Low As $605.45
    $605.45
    Repair Yours $480.00
    SIEMENS 540-165

    SIEMENS

    LANDIS & GYR

    540-165

    PNEUMATIC CONTROL MODULE
    Buy Surplus As Low As $294.00
    $294.00
    Repair Yours $300.00
    SIEMENS 540-160

    SIEMENS

    LANDIS & GYR

    540-160

    SIEMENS, LANDIS & GYR, 540-160, 540160, POWERS, SYSTEM 600, VENT CONTROLLER UNIT, 115/230VAC, 60HZ, .25AMP
    ✓ IN STOCK!
    Buy Surplus As Low As $171.32
    $171.32
    Repair Yours $300.00
    SIEMENS 540-147

    SIEMENS

    LANDIS & GYR

    540-147

    DISCONTINUED BY MANUFACTURER, TERMINAL EQUIPMENT CONTROLLER RELAY MODULE
    Buy Surplus As Low As $172.00
    $172.00
    Repair Yours $300.00
    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 $300.00
    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 $144.84
    $144.84
    Repair Yours $300.00
    SIEMENS 540-121

    SIEMENS

    LANDIS & GYR

    540-121

    DISCONTINUED BY MANUFACTURER, TEMPERATURE SENSOR, ROOM TEMPERATURE SENSOR
    ✓ IN STOCK!
    Buy Surplus As Low As $126.92
    $126.92
    SIEMENS 540-120

    SIEMENS

    LANDIS & GYR

    540-120

    TERMINAL EQUIPMENT CONTROLLER RTS
    ✓ IN STOCK!
    Buy Surplus As Low As $127.33
    $127.33
    Repair Yours $300.00
    SIEMENS 540-110N

    SIEMENS

    LANDIS & GYR

    540-110N

    DISCONTINUED BY MANUFACTURER, TEC UNIT CONDITIONER CONTROLLER, FAN COIL, 24VAC, 50/60HZ, POWER CONSUMPTION - 3 VA, 6 DIGITAL OUTPUTS, REPLACED BY 540-110
    ✓ IN STOCK!
    Buy Surplus As Low As $1,189.09
    $1,189.09
    Repair Yours $553.00
    SIEMENS 540-110

    SIEMENS

    LANDIS & GYR

    540-110

    UNIT CONDITIONER / TERMINAL EQUIPMENT CONTROLLER, SYSTEM 600, ELECTRONIC OUTPUT, 24VAC, 50/60HZ, NO DIRECT RPL, INSTALLATION INSTRUCTIONS #540-194, REPLACES 540-110N
    ✓ IN STOCK!
    Buy Surplus As Low As $593.28
    $593.28
    Repair Yours $490.80
    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 $1,041.34
    $1,041.34
    Repair Yours $858.90
    SIEMENS 540-105

    SIEMENS

    LANDIS & GYR

    540-105

    DISCONTINUED BY MANUFACTURER, HEAT PUMP CONTROLLER, SYSTEM 600, SINGLE STAGE, 24 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $497.05
    $497.05
    Repair Yours $398.78
    SIEMENS 540-104

    SIEMENS

    LANDIS & GYR

    540-104

    DISCONTINUED BY MANUFACTURER, CONSTANT VOLUME CONTROLLER, W/ AUTO ZERO INPUT, 24VAC, 32-122DEG F, 10-95% RELATIVE HUMIDITY
    ✓ IN STOCK!
    Buy Surplus As Low As $1,719.12
    $1,719.12
    Repair Yours $1,450.00
    SIEMENS 540-103N

    SIEMENS

    LANDIS & GYR

    540-103N

    VAV TEC CONTROLLER, OPERATING RANGE 19.2 TO 27.6 VAC 50 OR 60 HZ, OUTPUT 6 DO 24 VAC OPTICALLY ISOLATED SOLID STATE SWITCHES @ 0.5 AMP***NON-RETURNABLE NON-CANCELABLE SPECIAL ORDER***
    ✓ IN STOCK!
    $1,578.97 Buy Surplus As Low As $947.38
    $947.38
    Repair Yours $763.00
    SIEMENS 540-103

    SIEMENS

    LANDIS & GYR

    540-103

    DISCONTINUED BY MANUFACTURER, TERMINAL EQUIPMENT CONTROLLER, 24 VAC INPUT, 50/60 HZ, 12 VA MAX OUTPUT (EACH), CLASS 2
    Buy Surplus As Low As $885.53
    $885.53
    Repair Yours $700.00
    SIEMENS 540-100N

    SIEMENS

    LANDIS & GYR

    540-100N

    DISCONTINUED BY MANUFACTURER, VAV TEC CONTROLLER, 16 POINT, 24 VAC, 50/60 HZ
    ✓ IN STOCK!
    Buy Surplus As Low As $661.34
    $661.34
    Repair Yours $501.03
    SIEMENS 540-100

    SIEMENS

    LANDIS & GYR

    540-100

    DISCONTINUED BY MANUFACTURER, TERMINAL BOX CONTROLLER, ELECTRONIC OUTPUT, APOGEE AUTOMATION, CLASS 2, OUTPUT: 12 VA MAX EACH OUTPUT, INPUT: 24 VAC 50/60 HZ, 24 V COMMON, 24 V HOT
    ✓ IN STOCK!
    Buy Surplus As Low As $630.00
    $630.00
    Repair Yours $440.00
    SIEMENS 538-965

    SIEMENS

    LANDIS & GYR

    538-965

    DISCONTINUED BY MANUFACTURER, TRUNK ISOLATOR, EXTENDER, MODULE, HIGH SPEED, 120 VAC
    ✓ IN STOCK!
    Buy Surplus As Low As $300.00
    $300.00
    Repair Yours $300.00
    SIEMENS 538-955

    SIEMENS

    LANDIS & GYR

    538-955

    TRUNK ISOLATOR/EXTENDER HIGH SPEED 115VAC
    ✓ IN STOCK!
    $576.64 Buy Surplus As Low As $287.53
    $287.53
    Repair Yours $300.00
    SIEMENS 538-922

    SIEMENS

    LANDIS & GYR

    538-922

    ETHERNET MICROSERVER MODULE
    ✓ IN STOCK!
    Buy Surplus As Low As $200.93
    $200.93
    Repair Yours $405.83
    SIEMENS 538-920

    SIEMENS

    LANDIS & GYR

    538-920

    ETHERNET MICROSERVER 120VAC AEM 200
    Buy Surplus As Low As $420.00
    $420.00
    Repair Yours $350.00
    SIEMENS 538-894

    SIEMENS

    LANDIS & GYR

    538-894

    HUMIDITY/TEMPERATURE DUCT SENSOR
    Buy Surplus As Low As $516.00
    $516.00
    Repair Yours $430.00
    SIEMENS 538-893

    SIEMENS

    LANDIS & GYR

    538-893

    SENSOR ELECTRONIC RELATIVE HUMIDITY DUCT
    Buy Surplus As Low As $366.19
    $366.19
    Repair Yours $300.00
    SIEMENS 538775

    SIEMENS

    LANDIS & GYR

    538775

    ANTI-CORROSION KIT CONNECTORS AND PINS
    $9.54 Buy Surplus As Low As $5.72
    $5.72
    SIEMENS 538-740

    SIEMENS

    LANDIS & GYR

    538-740

    DISCONTINUED BY MANUFACTURER, DUAL FIBER OPTIC TRUNK INTERFACE, SMOKE CONTROL SYSTEM EQUIPMENT, 6-12VDC, OPERATING TEMP 0-50C
    Buy Surplus As Low As $601.29
    $601.29
    Repair Yours $475.00
    SIEMENS 538-735

    SIEMENS

    LANDIS & GYR

    538-735

    DISCONTINUED BY MANUFACTURER, FIBER OPTIC TRUNK INTERFACE, SUPPLY VOLTAGE 5-12 VDC, TX1 AND RX1 CONNECTORS, LED NOTIFICATION POWER/TX1/RX1 OPERATION
    ✓ IN STOCK!
    Buy Surplus As Low As $666.60
    $666.60
    Repair Yours $450.00
    SIEMENS 538-670

    SIEMENS

    SIEMENS INDUSTRY

    538-670

    TRUNK INTERFACE II, SMOKE CONTROL SYSTEM EQUIPMENT, 115 VAC, 60 HZ, 6W POWER SUPPLY
    ✓ IN STOCK!
    $1,230.00 Buy New $1,230.00
    $586.42
    Repair Yours $481.91
    SIEMENS 538-665

    SIEMENS

    LANDIS & GYR

    538-665

    DISCONTINUED BY MANUFACTURER, TRUNK INTERFACE, SMOKE CONTROL, ENERGY MANAGEMENT, PROCESS CONTROL, 6 VDC, 165 MA
    ✓ IN STOCK!
    Buy Surplus As Low As $611.69
    $611.69
    Repair Yours $550.00
    SIEMENS 538-645

    SIEMENS

    LANDIS & GYR

    538-645

    PC BOARD CONTROLLER ASSEMBLY
    $234.00 Buy Surplus As Low As $140.00
    $140.00
    Repair Yours $300.00
    SIEMENS 537-559P

    SIEMENS

    LANDIS & GYR

    537-559P

    CONTROL BOARD SUPERVISORY DPUI-ED
    ✓ IN STOCK!
    $897.30 Buy Surplus As Low As $392.48
    $392.48
    Repair Yours $325.76
    SIEMENS 537-185

    SIEMENS

    LANDIS & GYR

    537-185

    DISCONTINUED BY MANUFACTURER, PC BOARD, AOV BOARD
    ✓ IN STOCK!
    Buy Surplus As Low As $503.88
    $503.88
    Repair Yours $464.69
    SIEMENS 537-153

    SIEMENS

    LANDIS & GYR

    537-153

    POWER SUPPLY BOARD FOR POWERS SYSTEM 600
    Buy Surplus As Low As $276.00
    $276.00
    Repair Yours $300.00
    SIEMENS 536-983A

    SIEMENS

    LANDIS & GYR

    536-983A

    DISCONTINUED BY MANUFACTURER, ROOM TEMPERATURE SENSOR, 20/120F, 100K
    Buy Surplus As Low As $126.92
    $126.92
    Repair Yours $300.00
    SIEMENS 536-777

    SIEMENS

    LANDIS & GYR

    536-777

    LANDIS & GYR , 536-777, 536777, IMMERSION TEMPERATURE SENSOR, 30-240DEG F, 100KOHM
    ✓ IN STOCK!
    $149.94 Buy Surplus As Low As $89.89
    $89.89
    SIEMENS 536-774

    SIEMENS

    LANDIS & GYR

    536-774

    TEMPERATURE SENSOR 100OHM
    Buy Surplus As Low As $186.00
    $186.00
    Repair Yours $300.00
    SIEMENS 536-769

    SIEMENS

    LANDIS & GYR

    536-769

    TEMPERATURE SENSOR IMMERSION PLAT RTD
    Buy Surplus As Low As $216.00
    $216.00
    Repair Yours $300.00
    Previous Next
    9 10 11 12 13 14 15 16 17 18 19