Range can be pretty short. Also, on battery operation, sometimes just the time to control something can get longer. I'd add one of these:
http://smartenit.com/product/zbre/
These devices not only increase range, but also hold and forward data from the lock when they are "sleeping." You would think the HAI ZIM would do that, but it doesn't seem to. Any other 120V powered Zigbee devices act as a repeater as well.
http://smartenit.com/product/zbre/
These devices not only increase range, but also hold and forward data from the lock when they are "sleeping." You would think the HAI ZIM would do that, but it doesn't seem to. Any other 120V powered Zigbee devices act as a repeater as well.