The ALLNET ALL3419 IP Thermometer/Automation-Building-Main-Unit is a flexible and economical solution for temperature measurement over a network. The very compact design makes it suitable for use in confined spaces. The rugged metal housing has tabs for mounting on walls and ceilings and protects against mechanical damage.The ALL3419 IP Thermometer/Automation-Building-Main-Unit is connected to a computer network via cable or WLAN and is accessible by an IP address. The measured values ??can be accessed via web browser on the device itself. No additional software is required for operation. Thus the ALL3419 is appropriate for all operating systems.The temperature is measured by the included I2C RJ45 temperature sensor ALL3006. Another internal onboard sensor shows the internal system temperature. With the optional ALL3018 temperature & humidity sensor can detect also humidity. The measurement intervals can be set second by second. The last 512 values can be shown directly as a graphical trend. Additional Sensors and Actors can be also measure Gas / Movement etc. see www.allnet.de/en/allnet-brand/produkte/home-automation/home-automation-sensoren/Intelligent features and programming by switching matrixDepending on measured values certain actions can be programmed over the software based switching matrix. For example, if temperature is above or below defined limits, the readings can be sent by email. This may once, several times, and/or in certain time intervals, so long as the matrix condition exists.Another possibility is switching of external IP switching devices, such as network-sockets series ALL307x or network-relay ALL4075/4175 as well as directly connected actuators, for example the relay module ALL4427/3527. Alternativly can be switches also over the JSON Protocol.Flexible installation optionsThe external sensors can be plugged directly on ALL3419 or can be connected remotely via a control line. For remote connection a simple network cable (RJ45 connector, Cat. 5) is suitable to connect the sensors with the CPU. This way of connection is used in all ALLNET Home Automation products. For this purpose, an existing cable network such as already installed network or telephone lines can be used. The maximum cable length between CPU and sensor module can be up to 100 meters. The power supply of the sensor modules is already done via the main unit. A separate power source for each sensor module is not necessary.Borderless Cross-site temperature measurementSeveral ALL3419 can operate in conjunction with the bigger control and measurement computers ALLNET ALL3500/3505/4500 or ALL5000, to show a lot of geographically distributed values in a centralized way. Each individual ALL3419 is queried over an individual IP address and centrally stored and displayed in all the other Main-Units like ALL3418v2/3419/3500/3505/4500/5000 etc.