Eaton Decoy External Sounder is an external burglar alarm siren designed for use with i-on, Menvier, new and legacy 868MHz systems. The wired variants also compatible with third-party control units. A self-supporting lid, built-in spirit-level and revolving fixing holes for ease of installation including on uneven surfaces. High-power comfort LEDs and LED strobes provides reassurance for the user. Common enclosure for entire range is impact-resistant polycarbonate construction in a blue colour.