The Wireless Dongle is an Asset Monitor that is specifically designed to be tethered to another device, through a cable or connector, to enable it with HME Sub GHz (1) and optional Wide-Area-Network (WAN) communications.
As a microprocessor based device, the Asset Monitor has the computing power to host and run very sophisticated software applications. The Asset Monitor's Basic Software Layer cognitively manages its integrated communications subsystems, its integrated data storage, its battery's energy and its remote hardware and software maintenance. An Asset Monitor's Value-Added Software Layer, with access to Basic Software Layer utilities, can host a range of custom sophisticated software applications that enhance and extend its basic software and manage other devices that it interfaces with, a reefer controller is a great example.
As a reefer controller interface, the Asset Monitor equipped with WAN communications, receives instructions from the cloud it is associated with, translates them into instructions that the "target" reefer controller can understand and then passes them to the reefer controller for execution. The Asset Monitor can also retrieve data from the reefer control, either on instruction from the cloud or independently under its program's control, every hour for example. The Asset Monitor's software might independently, every hour, request the container's incoming and exhaust air temperatures from the reefer controller. The Asset Monitor's software then compares the temperatures to determine if they are within the specified limit set from the cloud, generates an "event" alert if the limit was exceeded and, stores the temperatures, the comparison result and the "event" alert, if it was generated, in its data logger. The event alert is "pushed" to the cloud, the fleet manager, at the first opportunity for the Asset Monitor to connect. The fleet manager, somewhere in a remote operations center, and the Asset Monitor seamlessly manage it all. 
Generally, anything that could be done by a person at the reefer controller's keypad can be done remotely from the cloud. Beyond that, the Asset Monitor "continuously" monitors data from the reefer controller and independently makes adjustments to the reefer's operation or reaches out to the cloud, as it was programmed to do when things go wrong. This is like having the terminal reefer technician travel with the reefer as it moves through its supply chain journey.
(1) HME Sub GHz is an Adaptive / Cognitive Communications Protocol designed specifically to achieve highly reliable wireless communications in highly metalized environments such as shipping terminals with thousands of stacked metal containers. HME Sub GHz is based on 433 MHz Radio Frequency, which is proven optimal for communications in these same highly metalized environments.
(2) Near-Field Magnetic Inductance is very similar to the technology that Samsung and others use for secure wireless payment transactions. Fundamentally, two magnetic fields intersect to form a continuity. In this use model, one field emanates from one device and a second field emanates from a second device. When these fields intersect they form a continuity that allows the devices to communicate with one another. Here, one device provides its ID to a second device. The second device, using some methods, verifies that ID is authorized for communications and associates it with its communications network for further communications.
(3) DNA is a hybrid PPK security concept for devices to authenticate themselves before communicating data between themselves that is based on devices randomly changing their private keys continuously over time and sharing the new key with devices they have previously been associated with.
(4) This device can be deployed without its own IP-67 enclosure when enclosed within the IP-67 enclosure of the device it's tethered to, within a reefer controller box for example, along with other protective treatments, like a Printed Circuit Board conformal coating or potting, to ensure its specific protection against moisture and dust.
(5) GNSS stands for Global Navigation Satellite System and GMDN stands for Global Mobile Data Network.
