San Diego-based connected health provider GreatCall Inc. has acquired Healthsense, a Mendota Heights, Minn. maker of passive health monitoring products geared toward senior citizens.

Terms of the transaction were not disclosed.

Healthsense uses wireless sensors to track patients’ daily eating, sleeping and movement routines. If it senses a significant change in pattern, the product alerts a caregiver.

GreatCall CEO David Inns called the purchase a “natural fit” given the companies shared mission of increasing users’ independence, reducing total cost of care and improving the experience of residents, families and caregivers.

“Acquiring Healthsense brings important capabilities in predictive analytics that dovetail with our deep customer knowledge, expands our offering, as well as increases our exposure in senior living and healthcare,” Inns wrote in a Dec. 20 news release.

GreatCall makes a suite of wearable mobile devices, including easy-to-use cellphones and medical alert devices, intended to help seniors age in place.