I am currently undertaking a design project, encompassing a bike lock where if the chain is broken an alarm will sound. My initial thoughts are to use an existing personal alarm (the cheap ones with a rip cord) and attaching a circuit through the chain. When the chain is cut the circuit is cut sounding the alarm. I am a novice in electronics and was looking for some general advice concerning what is involved with the electronic component i.e. is it feasible to connect a circuit (wire) to the personal alarm and if this alarm is cut making the alarm sound? Any feedback or reference to helpful material would be very welcome!! Thank you