Monitor Air Conditioning Systems with Sensaphone IMS Airflow Sensor IMS-4863 Monitor presence or absence of cool moving air. IMS-4893 is designed primarily for monitoring airflow of air conditioning units at home or in the office. Compatible with IMS-1000 and IMS-4000 purchased separately . IMS-4863 Airflow Sensor with RJ-45 Connector, Black Plastic Housing Features Sensor Type and Sensing Range Approx. 0 to 2000 fpm, solid state Operating Temperature Range 32 degrees to 80 degrees F 0 degrees to 26.5 degrees C Operating Humidity 0% to 80% RH non-condensing Dimensions 4.2 x 1.6 x 0.9 inches Package Contents x1 Airflow Sensor IMS-4863 x4 Plastic drywall anchors x4 #6 Metal tapping screws Relative air flow given as a percentage from 0 to 100. RJ-45 cable e.g. CAT5 cable which is not included connects the Airflow sensor to the IMS device. An existing network wiring system may also be used for the connection from the sensor to the Host or Node in cases where the sensor is installed in another room or another floor. To utilize the network wiring infrastructure already in place, connect the bridge via a RJ-45 jack. At the other end, connect a patch cable from your structured wiring patch panel directly to the Host or Node environmental input. This item ships from a separate warehouse and may require extra time for delivery.