A system for detecting the position of at least one moveable element of a window or door, the system comprising: at least one sensor for sensing a magnetic field, the at least one sensor being configured such that the magnetic field sensed changes as said moveable element moves; and a processor configured to receive output signals associated with the sensed magnetic field and to determine the position of said moveable element; wherein the system is configured to operate in a calibration mode and a normal mode, wherein in the calibration mode the system is configured to register at least an output value from said sensor when said moveable element is at a first predetermined position as a corresponding first reference value and wherein in the normal mode the processor means is configured to use the first reference value in determining the position of the at least one moveable element.

Methods and systems are disclosed that, in some aspects, provide an opening mechanism comprising an interior and an exterior door handle and sensors to detect movement of each door handle. A door position sensor may be provided. An alarm module for generating an alarm may be connected to at least one of the sensors. A method may include receiving a door handle actuation signal, determining whether the door handle actuation signal is from an inside door handle or an outside door handle and performing a function. One or more methods include determining an event, including an attempted entry, a forced entry and an incomplete entry.

A lock monitoring device (10, 70, 80) comprises a sensor (101) configured to sense a rotation degree of a lock with respect to a predefined direction, a controller (103) configured to determine the status of the lock based on the sensed rotation degree from the sensor (101), and a communication module (105) configured to communicate with an external device. The controller (103) is further configured to, upon detecting a change in the status of the lock, control the communication module (105) to transmit the status of the lock to the external device. And a method and system for monitoring a lock are also provided.

Methods and systems are disclosed that, in some aspects, provide an opening mechanism comprising an interior and an exterior door handle and sensors to detect movement of each door handle. A door position sensor may be provided. An alarm module for generating an alarm may be connected to at least one of the sensors. A method may include receiving a door handle actuation signal, determining whether the door handle actuation signal is from an inside door handle or an outside door handle and performing a function. One or more methods include determining an event, including an attempted entry, a forced entry and an incomplete entry.

Methods and systems are disclosed that, in some aspects, provide an opening mechanism comprising an interior and an exterior door handle and sensors to detect movement of each door handle. A door position sensor may be provided. An alarm module for generating an alarm may be connected to at least one of the sensors. A method may include receiving a door handle actuation signal, determining whether the door handle actuation signal is from an inside door handle or an outside door handle and performing a function. One or more methods include determining an event, including an attempted entry, a forced entry and an incomplete entry.

An alarm for a door is operable to generate an alarm signal when a rotary grip member of the door is rotated to a particular position, such as an unlocked position. The alarm comprises a housing having a strap retainer configured to receive and retain a strap to hold the housing to the rotary grip member. The alarm comprises a tilt switch for switching when the housing is tilted. Control circuitry is interconnected to the tilt switch and to an annunciator and is operable to activate the annunciator dependent on a state of the tilt switch.

A electronic lock system and method including an electronic lock, a mobile device and/or a wireless device. The electronic lock is capable of sending a message to the mobile device via wireless communication and/or to the wireless device based on a triggering event. The mobile device and/or the wireless device may in turn perform an action based on the received message. In one embodiment, the electronic lock, the mobile device the wireless device communicate with one another wirelessly via Bluetooth communication.

The present disclosure relates to a device for an actuation handle, having an actuation bolt, which has at least one section along its longitudinal axis (A) having at least one outer edge on its circumference. The device comprises a housing having a first receiving section for receiving an energy converter for supplying electrical energy to a radio transmitter by converting mechanical energy into electrical energy, and an aperture for the actuation bolt, wherein the aperture has a second receiving section for rotatably accommodating the section of the actuation bolt having at least one outer edge. The device is characterized in that the first receiving section is disposed such that it is adjacent to the aperture, wherein a switch element of the energy converter extends into a rotational path of the at least one outer edge when the energy converter is in a receiving state, and can be actuated such that it causes a switching by means of the at least one outer edge during a rotation of the actuation bolt.

A push-pull door handle assembly is provided for use with a door having a latch mechanism. The assembly includes a base plate, an actuator linkage associated with the base plate and configured for actuating the latch, a door handle having a working end pivotally connected to the base plate and a free end opposite of the working end configured for manipulation by an operator such that a pushing action on the working end actuates the latch. The door handle is connected to the base plate such that a pulling action on the handle activates an alarm upon the free end reaching a predetermined position.

A door stop rod assembly includes a base having a room defined therein. A neck and a yoke are respectively connected to two opposite ends of the base. The collapsible part is connected to the neck. The yoke includes a notch against which the door knob contacts. A warning device is located in the room of the base and includes a circuit, a power supply, a buzzer, a vibration detector, a static electricity sensor and a switch. When the vibration detector detects vibration from the door knob due to exterior touch of the door knob, the circuit activates the buzzer to warn the persons inside the house.