# Council Regulation (EEC) No 3821/85 of 20 December 1985 on recording equipment in road transport, Division 22: Performance characteristics

Extent: E+W+S+N.I.

159 The Vehicle Unit shall be fully operational in the temperature range - 20 o C to 70 o C, and the motion sensor in the temperature range - 40 o C to 135 o C. Data memory content shall be preserved at temperatures down to - 40 o C.
160 The recording equipment shall be fully operational in the humidity range 10 % to 90 %.
161 The recording equipment shall be protected against over-voltage, inversion of its power supply polarity, and short circuits.
161a Motion sensors shall either:
react to a magnetic field which disturbs vehicle motion detection. In such circumstances, the vehicle unit will record and store a sensor fault (Requirement 070) or,
have a sensing element that is protected from, or immune to, magnetic fields.
162 The recording equipment shall conform to Commission Directive 95/54/EC of 31 October 1995 adapting to technical progress Council Directive 72/245/EEC , related to electromagnetic compatibility, and shall be protected against electrostatic discharges and transients.

---
Source: https://www.legislation.gov.uk/eur/1985/3821/annex/2/division/III/division/22 (the official version)
Page: https://openlegislation.uk/eu-regulation-1985-3821/annex-2/division-III/division-22
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.