Communication range between the infrared sensor and the receiver is up to 70 meters. 3 levels of volume control: loud, medium, quiet. 2 alarm modes: ringtones with LED display and LED display only. 38 different ringtones available. Sensor detection range is 3 to 7 meters vertically and 3 to 5 meters horizontally. Receiver dimensions: 76x80x33 mm. Sensor dimensions: 80x59x45 mm. Suitable for use on windows, doors, garage doors, and similar applications, ideal for home or shop environments. Sensor powered by 3x AAA batteries or 5V USB power supply (not included). Receiver powered by DC 110V–240V. Specifications: Communication range between sensor and receiver: 70 meters. Sensor detection range: 3 to 7 meters. Dimensions: sensor 80x59x45 mm, receiver 76x80x33 mm. Package includes: 1x sensor, 1x receiver, 1x mounting accessories set, 1x instruction manual.