Hi there, my name is Roger, and I run an Ebay Shop, Rogers Cove. I carrry a wide range of products from electronics through to fishing tackle at competitive prices.
I have bite alarms so cheap you could replace the whole alarm every year. They have great features tone and volume control, twin leds, sounder box socket and use standard 9 volt batteries. They are super loud also.
Check out an interesting range of products at Rogers Cove