1.High reliability. Mechanical timers don't need batteries or electronics, so they work well in any power situation and are less likely to break.
2.Easy to use. Timers usually have just a knob or button to set the timing, so they're easy to use.
3.Strong durability. Mechanical timers are made of strong materials, so they last a long time and don't break easily.
4.No battery needed. Mechanical timers don't need batteries, saving time and money.
5.Sound alarm. When the set time is reached, the mechanical timer usually makes a sound, like a bell, to remind users to check on the food.
6.Cheap: Mechanical timers are cheap to make, so they cost less and are a good choice for many users.
