Cambond via Amazon offers its
Cambond Waterproof Wireless Doorbell Kit for $24.99. Coupon code "CAMBELL2" cuts that to
$16.99. Plus, Prime members bag
free shipping. That's $2 under our June mention, $8 off, and the lowest price we could find. It includes a transmitter and two receivers, and features 52 melodies, four volume settings, and a wireless range of up to 1,000 feet. Deal ends August 20.