The Cambridge Bench pH Meter

This pH meter was manufactured in 1959 by the Cambridge Instrument Company at their London factory.

The Cambridge Instrument Company can trace its roots back to the Cambridge Scientific Instrument Company.  A company founded in 1881 by Albert Dew Smith and Horace Darwin, the youngest son of Charles Darwin.  The original activity of the business was to manufacture and supply instruments to the laboratories of Cambridge University.  

Since the 1960s, the company has gone through numerous reorganisations, mergers and acquisitions.  Its various activities are now split across a number of companies.

Despite being more than 50 years old, this particular instrument is in excellent condition.  A testament to the high quality materials used and the skilled workmanship of the time.

One wonders what activities this meter has witnessed over its long life......

Was it used for cutting edge scientific research or was it used for more mundane, but equally important, quality control routines ? 

Photo of the The Cambridge pH Meter with a younger cousin

Click here for information on slightly newer pH meters

Click here for more photos of the Cambridge pH Meter

Click here for more information about the Cambridge Instrument Company

Model CM-30R Conductivity Meter

The Model CM-30R is a high performance desktop type conductivity meter from the R Series range of laboratory-type water quality measuring instruments.

The standard instrument package comes with everything you need to get started including conductivity cell, sensor stand, sensor holder, ac adapter, beaker, instruction manuals etc..

The Model CM-30R offers the following advanced features:

• Large easy to read colour display
• Can operate on 100 to 240V, 50/60 Hz AC power
• LAN interface
• USB interface, can be used to download data to a USB memory stick.
• Intelligent conductivity cell sensor with internal storage of calibration data and history
• Meter has built-in data storage including date, time, sample temperature, measurement result etc.
• Capable of controlling auto-sampling turntable
• Full compliance with European Community EMC and LVD directives (CE Marked)
• European ROHS compliant using lead free materials

For further information please check our web page and brochure on the R Series

The Model HM-30P pH Meter

The Model HM-30P pH meter is the entry-level meter from DKK-TOA's latest P30 range. The P30 range offers meters with laboratory performance and quality in a compact and portable format.

The HM-30P offers the following advanced features:

• Large easy to read display
• Can operate on normal or rechargeable AA type batteries
• Ultra low power consumption
• Intelligent electrode with internal storage of calibration data and history
• Built-in data storage including date, time, sample temperature, measurement result
• European ROHS compliant using lead free materials

For further information please check our web page and brochure on the P30 Series.

Click on the images below to see larger size photos.

Grantchester Technology Appointed Authorised Distributor by DKK-TOA

Grantchester Technology Ltd. have been appointed authorised distributors by DKK-TOA Corporation.  Grantchester Technology Ltd. are authorised to handle business on behalf of DKK-TOA Corporation.

Grantchester Technology Ltd. is a value-added supplier of scientific, educational and laboratory solutions in the United Kingdom and International markets.  DKK-TOA Corporation is a Japan based manufacturer of analytical instrumentation for laboratory, process and environmental monitoring applications.

“DKK-TOA Corporation recognises the importance of having a local partner in this vibrant and growing market,” said a spokesperson. “Grantchester Technology Ltd. was chosen after an extensive search as they provide a wide breadth of experience and excellent customer support.”