I created my own bathroom fan countdown timer switch : r/homeassistant
ENERLITES Countdown Timer Switch for Bathroom Fans / Lights, 1-5-10-15-20-30 Min Settings, Manual Override, Always On Blue LED, Neutral Wire Required, UL Listed, White - Walmart.com
ENERLITES Countdown Timer Switch, Fan Switch Timer, Wall Light Timer Switch, Bathroom Timer Switch, 5 min – 4 hours, Night Light LED Indicator, Neutral Wire Required, UL Listed, HET06-I, Ivory: Amazon.com: Tools
Homewerks 7150-12 LCD Bathroom Timer Switch for Ventilation Fan and Light 3 Functions - Amazon.com
AirCycler SmartExhaust Rocker/Decora Bath Fan Timer Switch SED-S
Panasonic Exhaust Fan Accessories Ventilation Accessories and Parts - FV-WCD02
DewStop®
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AirCycler Smart Exhaust Bathroom Fan Timer Switch - Almond SE1-A
Countdown Wall Timer
Fosmon 4 Hour Digital Countdown in-Wall Timer Switch, Light Timer Switch for Bathroom Fans, Heaters, Lights - ETL Listed, 9 Setting 1875W, LED Indicator, [OFF/ON-5-10-15-20-30-120-240 Minutes], White - Walmart.com
Countdown Timer Switch for bathroom fans and household lights, Ivory
NuTone VS69WH White 15 Minute Bath Fan Timer Switch with Two On/Off Switches - VentingDirect.com
Enerlites 15 Amps Tamper Resistant Single Pole Button Light Switch | Wayfair
AirCycler Smart Exhaust Bathroom Fan Timer Switch-White SE1-W
Countdown Timer Switch for bathroom fans and household lights, Ivory
Countdown Timer Switch for bathroom household lights, 2-5-10-15 min, N – Leviton
Bathroom Fan Auto Shut Off 1-2-4-8 Hour Outlet - Countdown Electrical Wall Switch Timer, White Plug in Outlets (1 Pack) - On Sale - Bed Bath & Beyond - 29805209
Homewerks 7150-12 LCD Bathroom Timer Switch for Ventilation Fan and Light 3 Functions - Amazon.com
Bathroom fan timer switches – Marco.org
Panasonic Polypropylene Bath Fan Switch in the Bathroom Fan Parts department at Lowes.com
10 Best Bathroom Fan Timer Wall Switch for 2023 | Storables
Bathroom Fan Timer Switch? - 🎬 Get Started - Hubitat
BN-LINK Heavy Duty 60-Minute in-Wall Spring Loaded Countdown Timer, Mechanical Switch,for Bathroom Fan,Lights Timer, 2 Free Plate (White and Silver Metallic): Amazon.com: Tools & Home Improvement
Installing a Bathroom Fan Timer :: Building Moxie | Bathroom fan, Bathroom exhaust fan, Bathroom exhaust
CD60W | Broan-NuTone® 20-40-60 Min Countdown Timer Exhaust Fan Wall Control Switch
Honeywell 7 Day Automatic Light Switch Timer - RPLS730B, White