Prior to ordering MarCell, I wanted to service 2 different units on the same yearly subscription, according to my location needs. I was told I could, so I ordered 2 units. 1 for Florida home for the summer months when we are in Michigan. And then also one sensor for Michigan while we are in Florida. After receiving the units and when I went to purchased the subscription I was told that I needed a subscription for each unit. At that point, I stated I pack and take 1 unit back and forth and have family plug it in and set it up. With your permission I returned the 2nd unit yesterday. You should be receiving it shortly, and issue a refund.
It seems to be working OK, I do not like the provision for pay extra for current readings. You should emphasize that feature more. I previously had 2 Motorola units, which at this point appears to be a better system.
Duane R Cranney