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Design Environmental offers calibration traceable to UKAS on all makes of climatic test chambers.

Signed certificates of conformance are issued with every calibration and a label affixed to the equipment showing the date and time of the next visit is required.

Calibration can be carried out as part of a preventative-maintenance contract or as a separate activity.

Temperature equipment includes a platinum resistance thermometer PT100 or type K thermocouples and a high-quality, digital, multi-channel data logger.

Humidity equipment includes a solid-state, hand-held, capacitive sensor and a high-quality, digital, multi-channel data logger.

Calibrated Humitrace pots can also be used.

Air-velocity equipment includes a hand-held hot-wire anemometer.

Light and solar-radiation equipment includes a hand-held digital light meter and GSI dome solarimeter in accordance with ISO 9060.

Pressure equipment includes 4in absolute pressure gauges.

Because any calibration is only valid at the point where the measurement was taken, multiple levels are offered as an option.

Four levels of temperature and humidity are most commonly employed and spread across the range of the chamber.

Multi-point calibration is also offered to establish the distribution of temperature and humidity within the chamber.

Nine points are most widely used for this purpose.

Weiss Technik UK is part of the Weiss Group, the world’s largest manufacturer of environmental testing equipment and one of four divisions of the Schunk Group. The Weiss Group division brings together environmental simulation technology and climate technology expertise. Solutions are used around the world in research, development, manufacturing and quality assurance.


In 2013, following a combined presence in excess of 55 years, two respected leaders in environmental testing solutions, Weiss Gallenkamp and Design Environmental, merged to form Weiss Technik UK.

Weiss Technik UK employs a team of over 90 staff across three office locations and a manufacturing plant in the United Kingdom and Germany.


Our environmental simulation product range includes Weiss and Vötsch test chambers and rooms for automotive, temperature and climatic, environmental stress screening, corrosion and pharmaceutical stability testing. We also offer sports science rooms, laboratory and industrial ovens and fingerprint development chambers.


We’ve built our long-standing reputation as a trusted supplier of environmental testing products through technological innovation and service excellence.

We supply small-scale bench top environmental chambers through to the largest customised multi-room controlled environment facility.


Our customers include Mercedes F1, Rothamsted Research, Syngenta, BASF, GlaxoSmithKline, PepsiCo, Dunlop, the FBI, Airbus and Bosch.

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