Abstract: An electronic seal of the present invention includes a bolt. The bolt is used to mount on a door latch of a cargo and inserts into a shell. The shell is provided with a control circuit to actively send a warning signal as the bolt is moved. As such, the user of the electronic seal can be properly informed to prevent theft.

Abstract: An anti-theft system includes a detecting device, a processing unit, and an alarm unit. The detecting device includes a first detecting unit that is operable so as to transmit a first signal, and a second detecting unit that transmits a second signal to the first detecting unit in response to the first signal. The processing unit verifies the second signal, and enables the first detecting unit to continue to transmit the first signal upon successful verification of the second signal. The alarm unit generates an alarm signal upon unsuccessful verification of the second signal. A container that is safeguarded by the anti-theft system is also disclosed.

Abstract: A temperature monitoring apparatus includes a casing, a detector, a sensor, a controller unit, and an indicator unit. The casing is formed with a hole therethrough. The detector is disposed in the casing, and detects extension of an object into the hole in the casing. The sensor is disposed in the casing, and is adapted to measure a temperature of the object extended into the hole in the casing. The controller unit is coupled to the detector and the sensor, and is operable so as to generate an actual temperature value with reference to the temperature measured by the sensor. The indicator unit is coupled to and controlled by the controller unit so as to provide an indication when the detector detects absence of the object in the hole in the casing.

Abstract: An anti-theft system includes a detecting device, a processing unit, and an alarm unit. The detecting device includes a first detecting unit that is operable so as to transmit a first signal, and a second detecting unit that transmits a second signal to the first detecting unit in response to the first signal. The processing unit verifies the second signal, and enables the first detecting unit to continue to transmit the first signal upon successful verification of the second signal. The alarm unit generates an alarm signal upon unsuccessful verification of the second signal. A container that is safeguarded by the anti-theft system is also disclosed.

Abstract: A temperature monitoring system includes first and second sensors, a microcontroller, a transmission unit, and a remote monitoring unit. The first sensor measures a skin temperature of a patient. The second sensor measures an ambient temperature of the patient. The microcontroller generates an actual temperature value with reference to the temperatures measured by the first and second sensors, and generates a warning signal when the actual temperature value generated thereby is within a predetermined temperature range. The transmission unit transmits the actual temperature value and the warning signal. The remote monitoring unit receives the actual temperature value and the warning signal, and records the time the warning signal was received thereby and location of the transmission unit.