Door Chime, 2-in-1 Door Alarm with One-Time Chime or Continuous Alert Mode, Door Open Alert for Kids & Elderly Safety, Home & Business, IP55 Waterproof Sensor, 800FT Range, 30 Chimes, 5 Volume

Business Entry ChimeWhen employees are busy restocking in the back, Chime Mode plays your selected ringtone once when a customer opens the door, such as a clear ding-dong to welcome visitors and alert staff in time. Even when the entrance is unattended, employees can hear the chime and come forward quickly, making every guest feel warmly welcomed and thoughtfully served.
Home SecurityWhile you sleep at night, this alarm instantly sounds a 110 dB siren if a door or window is forced open, or if someone opens a door to a restricted area such as a storage room or stockroom without authorization, alerting you right away to possible unwanted entry. It gives you valuable time to respond, so you can check the situation and act quickly to help protect your family and property.
IP55 Waterproof SensorThe IP55 waterproof sensor is suitable for indoor and outdoor use and can withstand light rain or splashes. Keep the sensor and magnet within 1.18 inches for proper detection. Do not mount it on metal door frames, as this may cause magnetic field interference, affect performance, and lead to false alerts.
Long Battery LifeDesigned with low power consumption, this door sensor is lab tested for over 30, 000 door open and close triggers, helping reduce the need for frequent battery replacement. The sensing distance stays stable and does not shrink as the battery level drops. With no on/off switch on the sensor, theres no need to worry about children accidentally turning it off.