General description The Tuya Wireless Smart 130Db Door Window Sensor System offers a reliable solution for home security with remote control operation. This burglar alarm system features multiple alert modes, ensuring your home remains safe from intruders. Technical specifications Alarm Volume: 130Db Material: ABS Siren Dimensions: 9.2 x 4.2 x 1.7 cm Remote Control Dimensions: 6 x 3.3 cm Power Supply: 2 x AAA batteries (included) Measurement Error: +/- 1-3 cm Compatibility and accessories Package Contents: 1 x siren, 1 x remote control, 1 x sticker, 2 x AAA batteries Usage Light Alert: LED blinks once when the remote control button is pressed and continues blinking when the alarm is triggered. Anti-theft Mode: Triggers sound and light alarm immediately upon door opening. Welcome Mode: Emits a "Ding" sound when the door is opened. SOS Mode: Manual alarm activation using the emergency key (SOS) triggers sound and light alarm. Volume Adjustment: Stand-alone volume control with "+" key to