Specialist Divisions - Instrumentation

Contact Tennants' Instrumentation Division

Mike McCarthy
Sales Manager

  • Tel: +44 121 557 9751
  • Fax: +44 121 557 8144
  • Email:
  • Address:
    • Tennants Distribution Ltd
    • Ryders Green Road
    • West Bromwich
    • B70 0AN
    • West Midlands

Tennants Distributon Ltd acts as a distributor of personal exposure monitoring instruments manufactured in Wales by PPM Technology Ltd.

Formaldemeter htV-m


Formaldemeter™ htV-m

Is the latest model to become available. It can be used to take "snatch" air samples, or it can be set to automatically take samples at varying time intervals, over extended periods up to one month as may be chosen by the operator. The readings are stored in the instrument and/or may be downloaded to a PC and displayed and analysed via most popular spreadsheet applications including Microsoft Excel. This instrument does away with the need to purchase the AMS-2 Base Station which was previously required for use with the Formaldemeter™ 400 and htv in order to automate the air sampling process.

Buy or Rent


Formaldemeter™ htV-m (Special)

This instrument offers all the testing and memory capabilities of the Formaldemeter htV-m but includes enhanced sample processing electronics and a plastic extension tube which connects to the sampling inlet. This allows remote sampling to be performed in difficult to reach or confined space areas such as storage tanks and silos.


Formaldemeter™ htV

A cut down version of the htV-m instrument (featured above) offering exactly the same sensor capabilities, but the htV instrument does not include the ability to download readings to a PC. The instrument does, however, store the last 10 readings taken in its internal memory. A great "sniffer" instrument for uncomplicated use in determining formaldehyde levels in air.


The Glutaraldemeter™ measures personal exposure to glutaraldehyde in air. It takes "snatch" air samples and is ideal for quick monitoring of the workplace environment and in the preparation of risk assessments.

Sick Building Syndrome

The Wireless Indoor Air Quality (IAQ) Profile Monitor


Wireless Indoor Air Quality (IAQ) Profile Monitor


The fantastic new PPM IAQ Monitor system has been developed to give a visual representation of the indoor air quality in buildings as a part of the building’s management standards in relation to such conditions as “Sick Building Syndrome”. It enables the user to control and run several wireless sampling units at the same time – all communicating together via a sophisticated and reliable ZigBee wireless mesh system. The mesh network is cost-effective, easy to install and simple to use. The nodes which make up the network automatically configure the optimum signal route to a base PC where the readings being taken by each monitor are displayed and can be stored.

Each large PPMonitor can monitor up to 8 different IAQ (Indoor Air Quality) parameters at the same time (small PPMonitors 5) including Temperature & Relative Humidity, Formaldehyde, Carbon Dioxide (CO2), Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Sulphur Dioxide (SO2), Total Volatile Organic Compounds (TVOC’s), Ozone, Chlorine (Cl2), Ammonia (NH3) and PIR Motion. Up to 100 PPMonitors can operate in any one network at the same time. With Earthnet Access Point (EAP) technology the wireless network can be accessed from any location world-wide via the Internet (subject to the necessary internet address, firewalls and gateways being enabled on the local network).


Click here to go to our Formaldemeter™ website


Swimming Pools and Spas

We offer a broad range of testing instruments and kits for swimming pool and spa water maintenance. For further information and to buy on-line Click Here to visit our pool chemicals website.

website designed, developed, maintained and hosted by Reaper Enterprises (reaper.com)