Dragino Dry Contact Sensor

"The Dragino CPL03-LB/LS is a LoRaWAN Contact Sensor for Internet of Things solution. It detects dry contact status, open time, open counts, and then upload to IoT server via LoRaWAN wireless protocol. The CPL03-LB/LS will send periodically data every day as well as for each dry contact action. It also counts the contact open times and calculate last open duration. User can also disable the uplink for each open/close event, instead, device can count each open event and uplink periodically."