The RavenXTG is a sleek, compact, cellular data modem that allows you to connect wirelessly to the Internet and transmit data from a remote site via the AT&T network. This new modem is 30% smaller than its predecesso...

Campbell Scientific’s COM320 voice-synthesizer modem provides a CR800, CR850, CR1000, or CR3000 datalogger with speech capability—thus enabling the user to call a site for a spoken summary of real-time or historical data...

The COM220 modem enables communications between a computer and a Campbell datalogger via a public switched telephone network. A Hayes-compatible modem is required at the base-station computer while a COM220 connects to t...

Two SRM-5A RAD Short Haul Modems support local communications between Campbell Scientific dataloggers and a computer with an RS-232 serial port. These asynchronous modems use a 4-wire unconditioned telephone line or the ...

The OMNISAT-M transmitter uses the METEOSAT satellite system to provide one-way communications from a data collection platform (DCP) to a receiving station. Supported transmission rates are 300 and 1200 bps. Producing Ar...

The TX312 is a High Data Rate GOES Transmitter. The transmitter complies with the HDR specifications, and supports transmission rates of 100, 300, and 1200 bps. Diagnostics and status information can be sampled by the da...

The ST-21 replaces the ST-20. The ST-21 is functionally equivalent, but contains Telonics new transmitter module. Campbell Scientific's ST-21 is a Service Argos-certified platform transmitter terminal (PTT). The ST-2...

The VSP3 Vosponder, manufactured by DACOM Technologies, Inc., allows customers to call their site using a hand-held UHF or VHF radio and receive a verbal report of real-time site conditions. Ideal applications include fi...

This RF modem will continue to be available, but Campbell Scientific recommends the RF500M modem for RF networks that use PakBus dataloggers. The RF95A is used with our RF300-series radios. It provides an RF communicatio...

The RF232A includes a 110/220 Vac to 12 Vdc transformer, RF95A modem, RS-232 port, and internal mount for a radio. The RF232A is always located at the base station computer and serves as a link to field stations and repe...