Water Powered Alarm Clocks

“It doesn’t use one bit of electricity. All that’s used is water – and that’s it. It’s cheap (just $19). All you have to do is fill the tank with water, and then it keeps the time with incredible accuracy for 8-12 weeks. There’s even a built-in memory chip, so that when you change the water, your time will still be spot-on.”

https://paylesspower.com/blog/100-ways-to-save-electricity/?fbclid=IwAR2Ey34WfgihO32sXcwVjqHOZuNdzoWWpBK8s6MLC6u5tCc1zopUbBBYRMk