KB045 What dose IP65 mean?

IP (Ingress Protection) ratings are defined in IEC 60529. This standard classifies and rates the degree of protection provided by mechanical and electrical enclosures against dust, accidental contact and water. It is published in the European Union by CENELEC as EN 60529.


Dimetix sensors are rated as IP65:

  • Digit 6 means: Dust-tight (no ingress of dust).
  • Digit 5 means: Water tight (water jet from any direction).

It is important to know that according to IP65 water-tightness is temporary and not permanent.


To ensure IP65 protection, the sensors exchangeable cover must be mounted correctly and the cable gland must be tightened firmly.

Generally the aging of materials can lead to a deterioration in tightness (e.g. brittle seals).


Important recommendation:

Protect the sensors from the effects of weather outdoors and damp environment. Please also note the separate article outdoor applications.