The EM4xxx datalogger system is fully IP68 rated. It consists of 4 main elements.
- Loop antennas. These are available currently in 3 diameters (45mm, 65mm and 80mm). All antennas come with 1.5m of cable. Antennas can be either single or double.
- RFID Unit. This unit is a double antenna version. It is IP68 rated and comes with two connectors. One to the antenna(s) and one to the datalogger/battery unit. The unit contains a small amount of memory where 100 detections are stored. Once more than 100 detections occur, the data is transferred to the datalogger/battery unit where it is stored as a CSV file.
- The datalogger/battery unit. This contains the storage memory for the tag detections and a rechargeable lithium ion battery pack. This is charged by a 5V power supply (USB) and is connected by a mini USB connector. The standard polling rate is set at 0.2ms, however this can be changed by the user as required within the logger settings tab when the system is connected to a computer.
- Interconnect cable for connecting Datalogger/Battery Unit to RFID Unit. Available in either: 2m, 5m or 10m with armoured and non-armoured options for each cable length.