Waterproof Mechanical Timer, Programmable Clock 24 Hour Programmer for Electric Water Heater, AC230V

:48 Times Settings:: The modular clock is programmable in 30-minute intervals, has 48 setting options in 24 hours, rearrangable for individual settings. :Waterproof:The pool timer clock is equipped with a waterproof protective cover, protecting the timer from weather conditions, safer for outdoor use. :Safe and Durable:: The pool clock is made of excellent ABS material, with two earthed sockets, safe and durable. Easy to use: always turn the dial of the pool water heater to the current timer first, push the pins down to adjust the time, pull the other pins up to start. :Built-in Rechargeable Battery:: The pool timer has a built-in rechargeable battery, can be used for a long time after fully charged.