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Ei Electronics radio communication systems are very reliable and are tested to high standards.
However, due to their low transmitting power and limited range (required by regulatory
bodies) there are some limitations to be considered:
(i) Receivers may be blocked by radio signals occurring on or near their operating frequencies,
regardless of the House Coding.
(ii) Alarms with SmartLINK modules should be tested regularly, at least weekly. This is to
determine whether there are sources of interference preventing communication, that the
radio paths have not been disrupted by moving furniture or renovations, and if so, to give a
warning of these and other faults.