RFI Industries has released the CellAlert Cellular Telephone Detector, which responds to the presence of a mobile telephone with an audible voice message warning.
The CellAlert is beneficial anywhere the signals from operating cellphones may affect the operation of sensitive electronic devices. The signals from cellular telephones can interfere with the operation of medical electronic devices. This can cause devices to act erratically or even fail. Heart monitors, drug delivery systems, apnea monitors, defibrillators, infusion pumps, ventilators, and incubators are some of the devices that have been identified by authorities as potentially vulnerable.
The CellAlert can be located near any area where sensitive electronic devices could be affected by cellular telephone signals. The audible reminder alerts both the phone users and personnel to unauthorised cellphone use.