I recently purchased a second one to use in my elementary classroom for an attention getter (lost my first one). It's simple to use, as you just plug it in and go. I didn't tell my class about it at first and for the first week and half no one knew what it was. Two students even opened the classroom door and looked for an actual doorbell lol. We all got a chuckle out that and I showed/told them what it was after that.
STARPOINT LR Wireless Doorbell Chime With Expandable Add-On Receiver Plugin - Long Range Multi-Unit Alert System, White
37 Review
Wireless Doorbell - PHYSEN Waterproof Doorbell Chime Kits With 1 Transmitter+1 Receiver, Operating At 1300-Ft Range 58 Ringtones 5 Volume Levels & LED Flash, Door Bell For Home/Classroom
33 Review
Universal 24V 40VA Thermostat / Doorbell Transformer: Compatible with Honeywell, Nest, Sensi, Ecobee, Nest Hello, and Ring Doorbells
43 Review
🔒 Adjustable Anti-Theft Video Doorbell Mount Bracket - No Drilling, Unobstructed Doorbell Motion Sensor - Ideal Mounting Accessories for Homes, Apartments, and Offices
31 Review
Беспроводной интерфейс сертифицированного электронного балласта.
8 Review
💡 Hydrofarm Quantum QT400 Регулируемый Балласт для 400W Гроу Лайтов
5 Review
💡 Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review
🔌 Robertson 2P20132 Quik-Pak: 10 Fluorescent eBallasts for 2 F40T12 Linear Lamps, Preheat Rapid Start, 120Vac, 50-60Hz, Normal Ballast Factor, NPF, Model RSW234T12120 /A (Crosses to RSW240T12120 /B)
4 Review