Chirons’ Iris Touch alarm signaller range’s GPRS feature will allow engineers to choose the most effective SIM for use at any location, the company said.
“GPRS signal strength can fluctuate or be impaired by problems such as overloading, power failures or routine servicing affecting individual GPRS transmitters,” Chiron’s technical director Mike Kennedy, said.
“When this happens alarm signallers, just like mobile phones, automatically seek out alternative transmission paths – but problems can arise when the alternative paths are too weak, or intermittent, to carry the alarm signal.
“Scanning different available path strengths, or cells, engineers can very easily choose the best SIM to use for any location. The best choice might not be the SIM which offers the strongest signal on its primary cell because this may have the worst back-up signal strength. In this situation the alarm signaller will work well until there is a problem with the primary cell.”
