Patent ID: 8395496

Claim:
A miniature modular wireless sensor unit comprising: A) a processor-communications module comprising a processor and a radio transceiver, B) a battery pack module comprising a battery, and C) a swappable sensor module comprising a sensor; said processor-communications module, said battery pack module and said swappable sensor module interlocked together via a sliding dovetail connection into a compact wireless sensor unit and being adapted for easy assembly and disassembly with finger force, wherein said sensor is a component in a wireless sensor network comprising a base station and a plurality of other sensors including a plurality of types of sensors, each type of sensor comprising a sensor identification pin connected to a resistor to ground wherein the resistor of each type of sensor has a unique resistance different from the resistance of the other types of sensors so that software in the base station can identify each type of sensor providing for hot swappability of the sensors.