Product Search

    SEARCH NOW FOR ALL YOUR WALCHEM SOLUTIONS

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

    Sensors & Switches / PH/ORP Transmitter

    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
    42 Results.
    WALCHEM WDP310-1NN

    WALCHEM

    WDP310-1NN

    CONTROLLER 115VAC 10AMP PH/ORP 50/60HZ
    £696.91 Price with VAT: £836.29 Buy Surplus As Low As £418.29 Price with VAT: £501.95
    £418.29 Price with VAT: £501.95
    Repair Yours £348.83 Price with VAT: £418.59
    WALCHEM WDP310-1N2

    WALCHEM

    WDP310-1N2

    PH/ORP CONTROLLER 115VAC 10A 50/60HZ
    Buy Surplus As Low As £717.08 Price with VAT: £860.49
    £717.08 Price with VAT: £860.49
    Repair Yours £597.56 Price with VAT: £717.08
    WALCHEM NMT7232-1P4ADMN

    WALCHEM

    NMT7232-1P4ADMN

    DISCONTINUED BY MANUFACTURER, CONTROLLER, WEB MASTER SERIES, 12 AMP, 120/240 V, W/ COOLING TOWER
    Buy Surplus As Low As £784.30 Price with VAT: £941.16
    £784.30 Price with VAT: £941.16
    Repair Yours £657.32 Price with VAT: £788.78
    WALCHEM WCT400-1N2U-C

    WALCHEM

    WCT400-1N2U-C

    COOLING TOWER CONTROLLER
    £855.26 Price with VAT: £1,026.32 Buy Surplus As Low As £428.01 Price with VAT: £513.61
    £428.01 Price with VAT: £513.61
    Repair Yours £406.34 Price with VAT: £487.61
    WALCHEM W-130-PH14

    WALCHEM

    W-130-PH14

    WALL-MOUNT PH/ORP TRANSMITTER / CONTROLLER, 4-20MA, 115VAC
    £109.39 Price with VAT: £131.27 Buy Surplus As Low As £65.63 Price with VAT: £78.76
    £65.63 Price with VAT: £78.76
    WALCHEM WDP310-1N6

    WALCHEM

    WDP310-1N6

    PH/ORP CONTROLLER, 115 VAC, 10 AMP, 50/60HZ
    Buy Surplus As Low As £545.49 Price with VAT: £654.59
    £545.49 Price with VAT: £654.59
    WALCHEM 191719-20

    WALCHEM

    191719-20

    WALCHEM THREE SENSOR MANIFOLD
    £524.36 Price with VAT: £629.23 Buy Surplus As Low As £315.22 Price with VAT: £378.26
    £315.22 Price with VAT: £378.26
    WALCHEM 191988-20

    WALCHEM

    191988-20

    TRANSMITTER HOUSING, PH/ORP, 20 FT CABLE, FOR USE WITH WEBMASTER
    £468.95 Price with VAT: £562.74 Buy Surplus As Low As £268.58 Price with VAT: £322.29
    £268.58 Price with VAT: £322.29
    WALCHEM 191989-20

    WALCHEM

    191989-20

    WALCHEM PH TRANSMITTER HOUSING
    £429.50 Price with VAT: £515.40 Buy Surplus As Low As £257.70 Price with VAT: £309.24
    £257.70 Price with VAT: £309.24
    WALCHEM 51371

    WALCHEM

    51371

    WALCHEM BUFFER SOLUTION PH 101. ONE PINT
    £18.67 Price with VAT: £22.41 Buy Surplus As Low As £11.20 Price with VAT: £13.45
    £11.20 Price with VAT: £13.45
    WALCHEM 191938

    WALCHEM

    191938

    WALCHEM PRE-AMP ASSEMBLY, PH/ORP/ISE, TERMINALS
    £249.60 Price with VAT: £299.51 Buy Surplus As Low As £141.83 Price with VAT: £170.20
    £141.83 Price with VAT: £170.20
    WALCHEM 51370

    WALCHEM

    51370

    WALCHEM BUFFER SOLUTION PH 71 ONE PINT 4
    £18.67 Price with VAT: £22.41 Buy Surplus As Low As £11.20 Price with VAT: £13.45
    £11.20 Price with VAT: £13.45
    WALCHEM WELMVF81

    WALCHEM

    WELMVF81

    ORP SENSOR, FLAT, 1.0, PREAMP HOUSING WITH NOATC, SUBMERSION MODEL
    £578.89 Price with VAT: £694.67 Buy Surplus As Low As £347.33 Price with VAT: £416.80
    £347.33 Price with VAT: £416.80
    WALCHEM WELMVF21

    WALCHEM

    WELMVF21

    WALCHEM ORP SENSOR
    £481.79 Price with VAT: £578.14 Buy Surplus As Low As £289.07 Price with VAT: £346.89
    £289.07 Price with VAT: £346.89
    WALCHEM WELPHF11

    WALCHEM

    WELPHF11

    WALCHEM WEL SERIES PH SENSOR
    £503.45 Price with VAT: £604.14 Buy Surplus As Low As £302.52 Price with VAT: £363.02
    £302.52 Price with VAT: £363.02
    WALCHEM WELPHF71

    WALCHEM

    WELPHF71

    WALCHEM PH SENSOR, FLAT, HOUSING ASSY
    £503.45 Price with VAT: £604.14 Buy Surplus As Low As £302.52 Price with VAT: £363.02
    £302.52 Price with VAT: £363.02
    WALCHEM WELPHF72 CONV

    WALCHEM

    WELPHF72 CONV

    WALCHEM FLAT SURFACE PH SENSOR
    £583.37 Price with VAT: £700.05 Buy Surplus As Low As £350.32 Price with VAT: £420.39
    £350.32 Price with VAT: £420.39
    WALCHEM WELPHFE1

    WALCHEM

    WELPHFE1

    WALCHEM PH SENSOR, 4-20MA, 3 FT, SUBMER.
    £608.77 Price with VAT: £730.52 Buy Surplus As Low As £365.26 Price with VAT: £438.31
    £365.26 Price with VAT: £438.31
    WALCHEM WELMVF84

    WALCHEM

    WELMVF84

    WALCHEM ORP SENSOR, FLAT, HOUSING WITH
    £560.96 Price with VAT: £673.16 Buy Surplus As Low As £336.88 Price with VAT: £404.25
    £336.88 Price with VAT: £404.25
    WALCHEM WELPHF74

    WALCHEM

    WELPHF74

    WALCHEM PH PROBE, FLAT, HOUSING ASSY
    £583.37 Price with VAT: £700.05 Buy Surplus As Low As £350.32 Price with VAT: £420.39
    £350.32 Price with VAT: £420.39
    WALCHEM WDSMVC

    WALCHEM

    WDSMVC

    WALCHEM WDS DIFFERENTIAL ORP SENSOR
    £627.44 Price with VAT: £752.93 Buy Surplus As Low As £376.47 Price with VAT: £451.76
    £376.47 Price with VAT: £451.76
    WALCHEM WELMVRD2

    WALCHEM

    WELMVRD2

    WALCHEM ORP SENSOR, 4-20MA, 20FT,INLINE
    £760.40 Price with VAT: £912.48 Buy Surplus As Low As £456.39 Price with VAT: £547.67
    £456.39 Price with VAT: £547.67
    WALCHEM WELPHF11 CONV

    WALCHEM

    WELPHF11 CONV

    WALCHEM WEL SERIES PH SENSOR
    £503.45 Price with VAT: £604.14 Buy Surplus As Low As £302.52 Price with VAT: £363.02
    £302.52 Price with VAT: £363.02
    WALCHEM WELPHH11

    WALCHEM

    WELPHH11

    WALCHEM PHH ELECTRODE/ HOUSING1. ELECTRO
    £537.81 Price with VAT: £645.37 Buy Surplus As Low As £322.68 Price with VAT: £387.22
    £322.68 Price with VAT: £387.22
    WALCHEM WPH420-34NU

    WALCHEM

    WPH420-34NU

    DISCONTINUED BY MANUFACTURER, PH/ORP TRANSMITTER, WPH SERIES, 100-240 VAC, 8.0 AMP, 50/60 HZ, INCH NORMINAL SIZE, FPT CONNECTION, 2 INPUTS, ORP INPUT TYPE, +/- 1500 MV RANGE, CONTACT TECHNOL ...
    Buy Surplus As Low As £549.22 Price with VAT: £659.07
    £549.22 Price with VAT: £659.07
    Repair Yours £366.01 Price with VAT: £439.21
    WALCHEM WCT400-142-U

    WALCHEM

    WCT400-142-U

    COOLING TOWER CONTROLLER WCT SERIES 4-20MA 120VAC
    £665.54 Price with VAT: £798.64 Buy Surplus As Low As £399.62 Price with VAT: £479.55
    £399.62 Price with VAT: £479.55
    Repair Yours £333.14 Price with VAT: £399.77
    WALCHEM WPH310-442

    WALCHEM

    WPH310-442

    DISCONTINUED BY MANUFACTURER, PH/ORP CONTROLLER,115VAC, 10A, 50/60HZ
    Buy Surplus As Low As £336.47 Price with VAT: £403.76
    £336.47 Price with VAT: £403.76
    WALCHEM 102607

    WALCHEM

    102607

    PH/ORP HOUSING, REPLACEMENT PART, 20 FT CABLE, COAXIAL C
    £212.88 Price with VAT: £255.46 Buy Surplus As Low As £127.73 Price with VAT: £153.28
    £127.73 Price with VAT: £153.28
    WALCHEM 191058

    WALCHEM

    191058

    WALCHEM ORP SENSOR ADD-ON KIT
    £874.68 Price with VAT: £1,049.62 Buy Surplus As Low As £525.11 Price with VAT: £630.13
    £525.11 Price with VAT: £630.13
    WALCHEM 102582

    WALCHEM

    102582

    WALCHEM HOUSING WITH PT 1000 ATC, 20 FT
    £253.96 Price with VAT: £304.76 Buy Surplus As Low As £152.38 Price with VAT: £182.85
    £152.38 Price with VAT: £182.85
    WALCHEM 51369

    WALCHEM

    51369

    WALCHEM BUFFER SOLUTION PH 41. ONE PINT
    £18.67 Price with VAT: £22.41 Buy Surplus As Low As £11.20 Price with VAT: £13.45
    £11.20 Price with VAT: £13.45
    WALCHEM SP-710

    WALCHEM

    SP-710

    PYXIS HANDHELD - PH/COND/ORP/TEMP/PTSA
    £1,652.26 Price with VAT: £1,982.72 Buy Surplus As Low As £991.96 Price with VAT: £1,190.35
    £991.96 Price with VAT: £1,190.35
    WALCHEM WELMVRB1

    WALCHEM

    WELMVRB1

    WALCHEM ORP SENSOR, ROD STYLE
    £522.12 Price with VAT: £626.55 Buy Surplus As Low As £313.72 Price with VAT: £376.47
    £313.72 Price with VAT: £376.47
    WALCHEM WELPHFC2

    WALCHEM

    WELPHFC2

    WALCHEM PH SENSOR, 4-20MA, 20 FT, INLINE
    £688.69 Price with VAT: £826.43 Buy Surplus As Low As £413.81 Price with VAT: £496.58
    £413.81 Price with VAT: £496.58
    WALCHEM WELPHFE2

    WALCHEM

    WELPHFE2

    WALCHEM PH SENSOR, 4-20MA, 3 FT, INLINE
    £688.69 Price with VAT: £826.43 Buy Surplus As Low As £413.81 Price with VAT: £496.58
    £413.81 Price with VAT: £496.58
    WALCHEM WELPHH71

    WALCHEM

    WELPHH71

    WALCHEM PH SENSOR, HF RESISTANT,
    £537.81 Price with VAT: £645.37 Buy Surplus As Low As £322.68 Price with VAT: £387.22
    £322.68 Price with VAT: £387.22
    WALCHEM WDSMVW

    WALCHEM

    WDSMVW

    WALCHEM WDS DIFFERENTIAL ORP SENSOR
    £665.40 Price with VAT: £798.48 Buy Surplus As Low As £380.23 Price with VAT: £456.28
    £380.23 Price with VAT: £456.28
    WALCHEM WELMVF82

    WALCHEM

    WELMVF82

    WALCHEM ORP SENSOR
    £560.96 Price with VAT: £673.16 Buy Surplus As Low As £336.88 Price with VAT: £404.25
    £336.88 Price with VAT: £404.25
    WALCHEM WELPHF72

    WALCHEM

    WELPHF72

    WALCHEM FLAT SURFACE PH SENSOR
    £583.37 Price with VAT: £700.05 Buy Surplus As Low As £350.32 Price with VAT: £420.39
    £350.32 Price with VAT: £420.39
    WALCHEM WELPHFC4

    WALCHEM

    WELPHFC4

    WALCHEM PH SENSOR,4-20MA,20FT, INLINE
    £688.69 Price with VAT: £826.43 Buy Surplus As Low As £413.81 Price with VAT: £496.58
    £413.81 Price with VAT: £496.58
    WALCHEM WPH610PSSNMNN

    WALCHEM

    WPH610PSSNMNN

    WALCHEM WPH600 PH/ORP COMTROLLER
    £1,543.96 Price with VAT: £1,852.75 Buy Surplus As Low As £926.97 Price with VAT: £1,112.37
    £926.97 Price with VAT: £1,112.37
    WALCHEM WPH420-1N6

    WALCHEM

    WPH420-1N6

    DISCONTINUED BY MANUFACTURER, PH/ORP TRANSMITTER, WPH SERIES, 100-240 VAC, 8.0 AMP, 50/60 HZ, INCH NORMINAL SIZE, FPT CONNECTION, 2 INPUTS, ORP INPUT TYPE, +/- 1500 MV RANGE, CONTACT TECHNOL ...
    Buy Surplus As Low As £376.88 Price with VAT: £452.25
    £376.88 Price with VAT: £452.25
    Repair Yours £297.59 Price with VAT: £357.10
    1