A nice touch is that the GV200-054 fits common enclosures without extra drilling.
ADI AD210BN AD210AN AD210 Quad Channel Isolation Amplifier x 1PC NEW
A nice touch is how the DEC DU1PU 24VDC 16A 250VAC model clicks with a reassuring feel.
The LK-61644 is straightforward and easy to spot, making your wiring tasks feel a bit more organized.
the Magnecraft RoHS brand sits right on the relay, and that small fact makes me more comfortable using it.
What stands out about this unit is the small indicator light that shows when it's powered on and ready.