Countdown Timer Switch for bathroom fans and household lights, 1-5-10-15-20-30 Min Settings with Manual Override, Always On Blue LED, Neutral Wire Required, Ivory, Enerlites HET06A-R-I
Always in Stock - Traceable Jumbo Display Push-Button Digital Clock/Timer from Cole-Parmer
Reaction Timer - learn.sparkfun.com
Elapsed Timer for Digital Synchronized Clock Systems | Sapling Clocks
Amazon.com: Salter 397 SVXR Big Button Electric Timer, Kitchen Digital Stopwatch, Memory Function, Magnetic or Self Standing, Stick on Fridge, Count Up/Down, 99 Min 59 Sec, Loud Beeper Sound, Start/Stop Button :
Elkay Pre-Programmable Push Button Timer Switch | Time Delay 2 mins – 2 hours | Easy Operation by Heat My Space & Alfresco365
GE In-Wall Digital Countdown Timer 15318 - The Home Depot
Adding a Timed Button to a Project - learn.sparkfun.com
A50 - 20/40/60 push button timer
Amazon.com: 2-in-ONE Digital Timer (Count-Down) / Stopwatch (Count-Up) with Blue LED Light & Beeps Notification Large Easy-Push Button Mute & Lock Functions Pink Timer for Kids : Home & Kitchen
Defiant 15 Amp 4-Hour In-Wall Push Button Countdown Timer Switch with Screw Terminals, White 30469 - The Home Depot