UNE-EN 50131-2-4:2021
Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors

Standard No.
UNE-EN 50131-2-4:2021
Release Date
2021
Published By
ES-UNE
Latest
UNE-EN 50131-2-4:2021

UNE-EN 50131-2-4:2021 history

  • 2021 UNE-EN 50131-2-4:2021 Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors
  • 2014 UNE-EN 50131-2-4:2008/IS1:2014 Soil quality - Determination of pore water pressure - Tensiometer method (ISO 11276:1995) (Endorsed by AENOR in May of 2014.)
  • 2008 UNE-EN 50131-2-4:2008 Alarm systems- Intrusion and hold-up systems- Part 2-4: Requirements for combined passive infrared and microwave detectors



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