TZ-8108 Adjustable Roller Lever Arm Arduino Limit Switch NC/NO CNC Mill Router SPDT Momentary Limit Switch For CNC Mill Plasma Review

I was going to use it for the machines we build but after comparing it to the name brand I don't think I want to incorporate it into production. but the switch does work, I just don't feel secured using it day in day out, sorry but I processed for return.

The spot where the switch changes state does not waiver. Cycles dependably every time. Terminals are well-built and terminal screws do not strip out easily. You can really crank down on the wires. Mounting bolt holes are the same. Common size thread and pitch. Bolt holes do not strip out easily. I'm using mine to control a linear actuator on my mower chute door. We will see how they handle the elements. The gasket is a little awkward. I'd definitely buy them again.

They seemed to be well made and easy to install. They have performed as expected.They will not be used on a very high cycle application so I would expect the life to be very good.

Good solid construction, works perfectly. The adjustable length of the striker arm is particularly valuable. The NC/NO function may not work properly in all situations, leading to discrepancies in accuracy and reliability.

I use these for turning off the fan in the chicken coop if the slide door is open. It controls a 20" household attic fan. The last limit switch lasted 3years of abuse & moisture till it failed (& failed normally open*). I mean the roller arm was rusted so a lot of wear & shocked they lasted so long. Happy to order again ;)