| 摘要 |
The present invention provides a remote detection device including a conventional measurement device, such as a thermostat, having an internal contact which is wired in series with a resistor and two wires of a standard telephone line. When the measurement device reaches or surpasses a predetermined set value, such as a predetermined temperature, the measurement device will close the internal contact such that the resistor will short the telephone line. Accordingly, the owner or manager of a building will receive a busy signal when dialing the telephone line connected to the remote detection device. The device, therefore, allows the building owner or manager to check on the condition of the building at any time. The device is not susceptible to breakdown or malfunction due to its simplicity. Moreover, the device is not susceptible to shutdown because the device is passive and does not require connection to a power source for operation. In another embodiment the remote detection device may comprise a computer program component which periodically monitors the status of a communication line connected to the measurement device at the remote location.
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