This product is no longer available and has been replaced by: COM320. Some accessories, replacement parts, or services may still be available.
COM310 Voice-Synthesized Modem


The COM310 enabled anyone to call a datalogger via phone to receive a verbal report of real-time site conditions. The datalogger could be programmed to report specific conditions or to allow a caller to select specific information by pressing numbers on a touch-tone phone. The COM310 supported data transfer rates of 9600 and 1200 baud between the datalogger and PC.

We can no longer load or support custom word lists in this product.


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Current Drain
  • 100 µA (quiescent)
  • 140 mA (voice transmitting)
Standard Operating Temperature Range -25° to +50°C
Extended Operating Temperature Range -55° to +85°C
Dimensions 16.0 x 4.3 x 9.1 cm (6.3 x 1.7 x 3.6 in.)
Weight 272 g (10 oz)


Datalogger Considerations

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR5000 CR7X CR9000X

Compatible Retired Dataloggers

CR500 CR510 CR10 CR10X 21X CR23X CR9000

*The COM310 is not compatible with the silver or 8032 black CR10 wiring panel. Originally the 10704 Power Adapter was used to connect the COM310 to these wiring panels. The 10704 adapter is no longer available.


COM310 Examples (5 KB) 04-22-2008

CR1000 CRBasic program examples showing COM310 data callback and voice support.

LoggerTalk v.2.0 (1.2 MB) 05-12-2006

Voice modem (COM310, COM300 and VS1) voice string editor used with the following dataloggers: CR10(X), CR510 and CR23X.

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