This internal extension speaker sounder is an ideal addition to any wired intruder alarm system. Once installed the unit will make the entry and exit tones of your system louder and clearer and in the event of an alarm will double as an internal siren (depending on the output of your panel) the extension speaker has a maximum sound output of 96db @ 1 Meter. Constructed of ABS plastic with a Mylar 16 ohm speaker with presoldered leads and connecting block for easy connection. Suitable for use on most wired intruder alarm systems including ADE, Honeywell, Texecom, Scantronic, Pyronix, Gardtec, Eurosec and many more but if you are unsure if it will fot your exisiting system just ask and we will confirm it for you. Main Features High Quality Mylar Speaker Presoldered connecting l.