Manual-ON/ Auto-OFF SensaSwitch

I originally bought the Auto On/Auto Off SensaSwitch and didn't know another SensaSwitch was required to complete my 3-way setup. This location was too busy for a fully auto switch. So the Manual On/Auto Off was the perfect solution. Once upstairs, I couldn't accidentally set off the motion sensor because it's manual!

I found these worked well. I didn't realize at first that the second multi-switch must the same model, not another model or a simple 3/4 way switch. I also found that the switch didn't work well w/o adjusting the time settings. The switch would either conflict or run into a race condition where both switched switched "off" at the same time and it sent both switches into a non-functioning mode - button didn't work at all. Resetting the switch (manually) or via a power-off, and power-on (breaker) appeared to reset the switches, and both would work once, and then go into a hung mode. Adjusting the timing of the switches via the documentation so that they were not using the default times from the factory, caused both switches to work great. I have not tried to connect the white wire to make the light work yet.

This Adorne sensor switch is poorly engineered. This sensor switches activates randomly throughout the day and night. I have replaced the "automatic" sensor switch twice, and they all randomly switch on and off. How can a reputatable manufacturer market a switch that does not even operate correctly?

This switch does not function as advertised when installed in a circuit with more than one switch. It will shut off seemingly at random even when I am pacing right in front of the sensors. A shame. The design is beautiful. The switch does work fine in single pole applications. Unfortunately I discovered this after spending hundreds paying an electrician to swap out replacement equipment sent by Legrand after my complaints. All to no avail. Still shuts off at random.