Reddit mentions of ZMF-II Chess Clock - Black with Green LED

I have this one and absolutely love it. It's a little bit on the pricey side, but it has several nice features:

-- Clear LED display

-- The "buttons" are not actual buttons, they're more like sensors that feel when your hand touches

-- Has a light that indicates who is on-roll, as well as can be programmed to make a "beep" sound when you signal the end of your turn

-- Easy to program

-- Sturdy

https://www.amazon.com/ZMF-II-Chess-Clock-Black-Green/dp/B00C261PMW/ref=sr_1_2?s=home-garden&ie=UTF8&qid=1519358429&sr=1-2&keywords=zmfii+chess+clock&dpID=415Q%252BXDmKyL&preST=_SX300_QL70_&dpSrc=srch

Is your budget for a clock $50?

I've seen this type of clock before, and while I won't put it down, I will say it's very uncommon to see at tournaments.

Generally you want a more recognizable clock that others will also know how to set if you lend them. For a $50 budget, I'd highly recommend the DGT North America or the ZMF-II timer (you can shop around for different color combos). I'm willing to vouch that these clocks can withstand light abuse
(dropping/traveling/kids/bughouse).

Generally one clock will have nearly all the features you'll need: one time control formats, two or more time control formats, delay, increment, etc.