A nice touch is the auto-off and timer, and you can set them to match your schedule almost perfectly.
MURR ELEKTRONIK 50043 MURRELEKTRONIK Optocoupler module
If you need reliability on a budget, the RS-1M is a solid pick that keeps costs down.
I like how the economizer reduces power consumption while still giving reliable switching.
You will find that this power relay stays cool during long runs and handles bursts with no stress power relay is a practical pick when you need to switch bigger devices from low power controls.
The pin style relay is a small thing, but it makes testing circuits more convenient than clip leads.
A nice touch is the slight bevel around the BU1 AC, guiding your fingers during quick swaps.
With a drum switch, this relay feels straightforward, and you get a clear sense of on and off.