Showing 1–16 of 43 results

  • Oil Interface Meter – 30 m

    An Oil Interface Meter that uses a 16mm probe for the accurate measurement of hydrocarbons as thin as 1.52 mm in wells as small as 19mm in diameter and for detecting tank leakage. As the Meter is lowered down a well and contacts the product layer, a solid tone and green light alarm is activated on the reel.
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  • Package – YSI & Peristaltic Pump (Advanced)

    Van Walt's most popular product combination for reliable, accurate results. An award winning YSI multiparameter meter combined with our  versatile electronic peristaltic pump with advanced memory option. This reliable and universal electronic peristaltic pump can create a perfect vacuum for sampling and purging in shallow wells. This package is perfect for low flow sampling of groundwater and is available with optional auto shut off to assist compliance with the latest standards and directives when low flow sampling in monitoring wells.
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  • Variable Frequency Drive

    The Variable Frequency Drive (VFD) is designed to operate, protect and to precisely control pump flow rates Benefits:
    • Precise Flow Control
    • Wide Performance Range
    • Robust Enclosure
    • Efficient pump operation
    • Pump Protection
    From £221.50 Login for loyalty discount
  • Package – YSI & Peristaltic Pump (Standard)

    Combining an award winning YSI multiparameter meter with a standard, electronic Peristaltic Pump with dial operated speed controls designed for pressure or vacuum pumping of liquids, ideally suited for low flow field sample removal from shallow wells. Eversible flow feature for back-flushing, lightweight portable rechargeable battery and also operates from 12V car battery.
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  • Package – YSI & Bladder Pump

    Combining an award winning YSI multiparameter meter with a small, portable, very efficient pumping package that includes a built-in, high efficiency electrical compressor and optional auto shut off. The small electric compressor uses an external rechargeable lead acid battery and no air makes contact with the sample liquid. There is no sample cross-contamination because the stainless steel pumps use a replaceable bladder either in Teflon or PE for easy cleaning. The ideal low flow groundwater sampling package capable of pumping from depths of up to 60 metres.
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  • Package – PID & Oil Interface Meter

    A useful package for anyone monitoring potentially hazardous wells and boreholes. Combining a robust handheld VOC monitor for the detection of volatile organic compounds and a standard Oil Interface Meter - 30 m with a 16mm probe for the accurate measurement of hydrocarbons as thin as 1.52 mm that produces an alarm when in contact with the product layer, a solid tone and green light alarm is activated on the reel.  
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  • Package – PID & LEL Meter

    Van Walt's 'Safe on Site' package with our robust handheld VOC meter that provides excellent detection for volatile organic compounds and has intuitive software features plus an accurate portable gas detector with audible and visual alarms which sound in the event of exposure to flammable gases, oxygen and a wide range of toxic gases onsite. Ideal for keeping you safe on petrol forecourts, landfill sites and other potentially hazardous environments.
    From £232 Login for loyalty discount
  • Package – YSI, Oil Interface Meter & Peristaltic Pump (Advanced)

    A versatile system for sampling and purging in shallow wells using an advanced Peristaltic Pump that creates a perfect vacuum, a handheld YSI multiparameter water quality test meter, a standard Oil Interface Meter - 30 m with a 16mm probe for the accurate measurement of hydrocarbons as thin as 1.52 mm in wells as small as 19mm in diameter and, when used with an in-line filter and flow-through cell creates a sophisticated low flow sampling system.
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  • Package – YSI, Oil Interface Meter & Peristaltic Pump (Standard)

    A standard low flow field sampling pump with eversible flow feature for back-flushing, lightweight portable rechargeable battery that also operates from 12V car battery; a handheld YSI multiparameter water quality test meter, a standard Oil Interface Meter - 30 m with a 16mm probe for the accurate measurement of hydrocarbons as thin as 1.52 mm in wells as small as 19mm in diameter.
    From £505 Login for loyalty discount
  • Package – YSI, Oil Interface Meter & Bladder Pump

    A serious low flow groundwater sampling solution for depths up to 60 metres including a handheld YSI multiparameter water quality test meter, a standard Oil Interface Meter - 30 m with a 16mm probe for the accurate measurement of hydrocarbons as thin as 1.52 mm in wells as small as 19mm in diameter and small, portable, very efficient bladder pump with compressor.
    From £633 Login for loyalty discount
  • Package – PID, LEL Meter & Oil Interface Meter

    The ultimate 'Safe on Site' package with a handheld volatile organic compound (VOC) meter; an accurate portable gas detector with audible and visual alarms which sound in the event of exposure to flammable gases, oxygen and a wide range of toxic gases onsite and a standard Oil Interface Meter - 30 m with a 16mm probe for the accurate measurement of hydrocarbons as thin as 1.52 mm in wells as small as 19mm in diameter.
    From £330 Login for loyalty discount
  • YSI Pro ODO

    The YSI Pro ODO is an extremely durable handheld Optical Dissolved Oxygen Meter.
    From £93 Login for loyalty discount
  • YSI Pro Plus

    The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations. The Quatro cable attached to the Pro Plus allows you to utilise 4-ports to measure temperature/conductivity, DO, and any two ISEs among pH, ORP, ammonium, chloride, or nitrate. Supplied with Buffer Solutions & Flow Cell. Buffer Solutions are only chargeable if used.
    From £206 Login for loyalty discount
  • YSI ProDSS

    Designed for demanding field work the ProDSS is the latest, smartest, most innovative portable water quality multi-parameter instrument from the YSI stable. Supplied with Buffer Solutions & Flow Cell. Buffer Solutions are only chargeable if used.
    From £283 Login for loyalty discount
  • ATEX Certified Interface Meter – 30 m

    An ATEX certified Interface Meter with LNAP and DNAPL detection for monitoring in landfill, remediation and petrochemical industries.
    From £125 Login for loyalty discount
  • PID MiniRAE Lite

    A reliable handheld volatile organic compound (VOC) monitor with a range of 0 to 5,000 ppm to make it an ideal instrument for a wide range of applications.
    From £103 Login for loyalty discount