Manufacturers of thermometers, hydrometers, hygrometers, flow meters and pressure gauges for medical, scientific & industry. Includes Progen Scientific (A division of GH Zeal Ltd). Founded in 1888: We strive to remain as faithful to our roots as possible. Integrity, honesty, quality and high level of service. Laid down by its original founders, the Zeal name stands as much for these values now as it did at its inception. Based in: London, SW19, United Kingdom for the past 111 years. Worldwide trade: In over 25 countries through a network of distributors who in turn reflect similar values. 126 Years Experience: Means that we are able to offer reliable products against a background of knowledge that is difficult to replicate. Quality Assured: To BS EN ISO 9001:2008 which is your guarantee of this proud boast and a measure of how seriously we take our commitment to you, the customer. Product range: 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 contact us directly for advice.