London, SW19, United Kingdom for the past 113 years. In over 25 countries through a network of distributors who in turn reflect similar values. Means that we are able to offer reliable products against a background of knowledge that is difficult to replicate. To BS EN ISO 9001:2015 which is your guarantee of this proud boast and a measure of how seriously we take our commitment to you, the customer.

So when it comes to Thermometers, Hydrometers, Hygrometers, Flowmeters or Pressure Gauges, you can be assured that they all carry the Seal of approval from a fine pedigree. If you want the genuine article, ensure you purchase through Genuine Zeal distributors, or contactus directly for advice. 12 months against faulty workmanship and materials.