This doorbell system works! I have tried other systems and not one comes even close to this system. The "ringers" plug directly into any AC receptacle and do not require batteries. The "ringers" can be easily relocated when needed and the two units that come with the system provide adequate coverage for the average house. I ordered an additional "ringer" that I plug into an outdoor receptacle when I am in the backyard. The door buttons are easy to install either with screws (which I did) or tape - both items supplied. The "ringers" also blink when activated, an added plus not contained in the product description.MAY 2016 - Just purchased a second set for my NJ home but this time I ordered the "water proof" buttons since they will be somewhat exposed. Placed one at every level of my home and all work fine. Thinking about installing one outside for when we are working in the garden.JUNE 2016 - Waterproof button - they are just what the manufacturer states - "water resistant". So far they have withstood some serious rain storms but it will take at least a year to evaluate correctly. I do advise putting a little dab of sealant over the top slot to give the button extra protection from the snow that will eventually come.AUGUST 2016 - Battery operated ringer - The arrival of my battery operated ringer completes my whole house doorbell/ringer system - one ringer on every floor and one outside on the deck. I needed a battery powered ringer because all other electrical receptacles were in use for other devices. Because it is battery operated we leave this one indoors where it serves as an additional ringer until we go outside. Works just as well as the plug-in ones work and it can even be put in a garden cart while we are working in the rear yard.
🔒 Adjustable Anti-Theft Video Doorbell Mount Bracket - No Drilling, Unobstructed Doorbell Motion Sensor - Ideal Mounting Accessories for Homes, Apartments, and Offices
31 Review
Optimize Viewing With CAVN Black Angle Mount For Ring Video Doorbell 1 2 3 4 - Adjustable 30 To 55 Degree Angle
30 Review
Stay Connected With A 1000 Feet Range - SadoTech'S Baby Blue Wireless Doorbell With LED Flash
32 Review
Wireless Doorbell Chime - AVANTEK Mini Waterproof, 1000 Feet Range, 52 Melodies & 5 Volume Levels With LED Flash
31 Review
💡 Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review
💡 High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review
Wireless Electronic Ballast Interface Certified
8 Review