The Correlator is suitable for both immediate measurement (online) as well as night measurement (offline). If the measuring point is easily accessible and is not in a danger area, then online measurement comes into effect. Power transmitters are deployed in this case (transmitter and microphone). These transmit the live signal directly to the correlator and you receive the result immediately. However, if the measuring point is in an area which is difficult to access or if there is lots of interference, then you have the option to conduct an offline measurement using the power transmitters or up to 8 multi-sensors. The multi-sensors are programmed accordingly with the correlator and then deployed. Following the measurement the power transmitters and multi-sensors are collected and the data can be read and evaluated by the correlator.The color touch display also makes it easier to use and improves the readability.