Well the button would only operate part of the time, maybe 80% of each time it was pushed. Then when it would switch, you were 'hit and miss' on whether the sensor would actually receive the signal. This intermittent functioning was from 12' away, no great distance there I'd say. I tried pointing the switch (button/remote) directly at the sensor unit (receiver) and it was still intermittent, probably working under this scenario 65% of the time, but this didn't meet my needs at all. I am very disappointed with this product.