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An alarm sounds if the radio link is interrupted by obstacles, and the memory in the probe ensures that data is not lost in the event of an interference to the radio link. The innovative battery design ensures long life of the probe memory.
In free space, the transmission path is approximately 984 feet at a frequency of 868 MHz and approximately 328 feet at a frequency of 2.4 GHz. Inside buildings, the transmission path is influenced by structural conditions such as walls, refrigerator doors or metal doors, but the radio link can be improved or lengthened by using a router. Because the radio probe and the router show the quality of their radio link, the probe can be positioned by the user for maximum signal quality.
A variety of probes with internal and external sensors allow adaptation for every application, and the radio probes are available with or without a display. Current measurement data, the battery status, and the quality of the radio link are conveniently shown on the display.
The probes can be directly connected to the Ethernet using an existing LAN infrastructure, which allows the data transfer from the probe to the base, even over long distances.
In total, a base can incorporate 150 radio and Ethernet probes or 254 measurement channels. The Saveris base offers flexibility with the highest data security and is connected to a PC either via USB or Ethernet cable.
The base is the heart of testo Saveris, can save up to 40,000 readings per channel independent of a PC, and the system data and alarms are visible via the display on the base. This corresponds to around one year of memory capacity at a measuring rate of 15 minutes. An emergency battery ensures that an alarm is transmitted and that no existing data is lost in the event of a power failure. | 
