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Ashtead Technology Ltd


Ashtead Technology Ltd specialises in supplying inspection, test and monitoring equipment and instruments. Our environmental monitoring fleet is second to none in the choice of equipment available and number of applications they can be used for. Our clients are found across a wide range of industries and include environmental consultancy and engineering, waste and recycling, surveying, waste and wastewater, drainage and sewerage, emissions and pollution monitoring to name a few. Knowledgeable Staff The team at Ashtead Technology are on hand to help with any queries, assist with choosing the right instrument for your needs, and answer any technical questions. Your first stop should be Jay Neermul, our dedicated Environmental Sales Manager. More than just a rental company! As well as short term hires, we can help with: - Perpetual Rental Plan for heavily discounted long term rentals - Rent To Own scheme for purchasing without hitting your capital budget - Sales, Servicing and Calibration of gas detectors and analysers To find out more, visit our website at: www.ashtead-technology.com or call +44 (0)845 270 2707.


Mr James Carlyle
Campus Five, Letchworth Business Park,


Multiparameter Water Monitor Added to Hire Fleet

Gone are the days when water quality monitoring involved rucksacks full of individual instruments and repeated trips to the water; Ashtead Technology Rentals has added the YSI 6920 multiparameter sonde to its rental fleet of water monitoring instruments.

The YSI 6920 is a 14 parameter water quality monitoring instrument capable of long-term deployment even in high fouling environments. This compact sonde incorporates an internal datalogger capable of recording up to 150,000 data sets at user-definable intervals. So, if the sonde is set to take a measurement from every sensors every 15 minutes, it will log for around 30 days. As such, the YSI 6920 is ideal for long term insitu monitoring or profiling. However, it can also be used as a portable monitor or for connection to an external logging system.

Ashtead stocks the latest version of the 6920, the V2. It has 2 optical ports measuring turbidity and dissolved oxygen, a conductivity/temperature port, a pH port, and one ISE port.

The optical sensors feature an integrated wiper that prevents the impacts of biofouling, a corrosion-resistant titanium wiper shaft, and replaceable seals.
Additional parameters include Salinity, Specific Conductance, Depth or Shallow Vented Level, TDS, Open-channel Flow, Nitrate-nitrogen, Ammonia/ Ammonium-N, or Chloride.

Ashtead's James Carlyle says "The 6920 lends itself perfectly to renting because it is a rugged, highly flexible tool suitable for a wide variety of water quality monitoring applications. We test and calibrate the sondes in our workshops so that they are ready for deployment as soon as we deliver them and they are supplied with EcoWatch® software, so customers find it very easy to download and analyse data."

The development of the YSI multiparameter sondes has meant that heavy rucksacks full of instruments and consumables are no longer necessary; a 6920 sonde fully loaded with sensors weighs less than 2Kg.

Users are now able to monitor water almost continuously so that trends can be analysed and pollution incidents can be recorded. The facility to hire these sondes means that Ashtead customers do not have the capital costs of ownership and they do not have to worry about the calibration and storage of the many sensors that the YSI 6920 offers.

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