Patent ID: 7724150

Claim:
A method of communicating particle count information from an environmental sensor to a remote data acquisition system, the method comprising creating a flow of fluid from a space through the environmental sensor; detecting particles in the fluid; determining a first particle count having a relation to the number of detected particles in a first time interval; determining a second particle count having a relation to the number of detected particles in a second time interval; determining a third particle count having a relation to the number of detected particles in a third time interval; determining a total particle count based on the first particle count, the second particle count, and the third particle count; wherein determining the total particle count includes adding the third particle count to the total particle count, and subtracting the first particle count from the total particle count; and communicating the total particle count from the environmental sensor to the remote data acquisition system, the communicating act including wirelessly communicating the total particle count from the environmental sensor.