The housings of the PRO/HD versions are aluminium hard coated (AHC™), which protects the housing against chemical and mechanical demages. (AHC™) is used in many technical ranges of application, where high standards in anti-corrosion, isolation, abraison-resistance and measurement stability are demanded.

The PRO and HD  versions are VITON™ O-ring sealed. VITON™ O-rings are acid- and alkaline proofed against hundereds of liquids and heat resistent up to 300°C. VITON™ O-rings are continual elastic between -40°C and + 200°C.

AHC™  is a registered trademark of  AHC-Oberflächentechnik Gmbh & Co. OHG.
VITON™  is a registered trademark of  Du Pont S.A.

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