The extra 12-volt DC whistle can be connected to the receiver to make it louder, or it can be located in another room or building by wiring it with two-strand doorbell wire.
As you can see, we’ve updated our website. Because of this update, you’ll need to reset your password. After you reset, you’ll receive an email with a Password Reset link within 10 minutes or so. If you don’t get it, please check your spam or junk folder. We hope you enjoy the new site!