Poseidon model 3265 is a simple autonomous device which can send e-mail if the sensor temperature or humidity gets over the set range or if the input status changes. Besides e-mail it is possible to send SMS directly from the device using GMS modem. Values and configurations are available at www graphic interface, sensor values can be red through several net protocols (SNMP, XML, ModbusTCP etc.). Buy the unit together with the more cost-effective package. Select the option in the offer next to the picture. unitGSM Modem1-wire temperature sensor2x power supplycables for connectingCD with documentation and utilitiesQuick start guide.