Bell when doors opens in comparison

Wireless PIR Motion Sensor Door Bell Self-contained entrance alert with motion sensor and a built-in chime.Combined with motion detection, 90db alert and flashing red light, 2-6M detection range in open area, Great product for smaller shops, stores and business offices, this standalone, all-in-one chime alarm plays an important role in informing you of intruder or visitor.

Advanced Security System The transmission range of sensor detects motion up to 918 feet (280 meters) and detection range of the infrared sensor approximately 2 8m 6.6 26ft to effectively keep you alerted. When the movement is detected by the sensor, the receiver will make an audible sound and the LED light will flash.

Soothing & Clear Chime Sound Emits a soft, pleasant tone when the door opens, combining the charm of a wind chime with the function of a traditional doorbell. Suitable for home doors, store entryways, or gate openings.

MULTIPURPOSE Ideal for front doors, window frames, mailbox alert, walking paths, entry alert chime, pet monitor alarm and anywhere in your home you want to be alerted to motion. Also great to alert business owners that are working in the back, or out of sight, to customers entering their store.

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IP55 waterproof doorbell button, needs 23A 12V Alkaline Battery.

36 Ringtones & 5 Welcomes Doorbell Rings Languages 5 welcome languages are selectable in welcome mode. 36 ringtones selectable in doorbell mode. Welcome doorbell Alarm model has 4 level volume adjustable. Color light Lighting mode is silent and has 4 levels of brightness adjustable. Great for people with hearing disabilities or if there is a sleeping baby in your house. The color light model also has 4 colors selectable.

High Quality Material This entrance bell is made of high quality space aluminum aly and high quality brass, processed with refined surface combined with a high quality matte brass bell, the sound is clear and sweet. Size 4 x 3.2 x 8 cm 1.57 x 1.26 x 3.15 inches (long x width x height); Package list 1 x shop bell.

All-In-One PRODUCT Self-contained entrance alert with motion sensor and a built-in chime. Great product for smaller shops, stores and business offices, who wants a simple and effective heads-up when someone walks through a door or any monitored areas. If you prefer custom ringtones, check out our M6 PIR Custom Chime.

MULTIPURPOSE Ideal for front doors, window frames, mailbox alert, walking paths, entry alert chime, pet monitor alarm and anywhere in your home you want to be alerted to motion. Also great to alert business owners that are working in the back, or out of sight, to customers entering their store.

Effortless Installation With simple installation procedures, this shopkeepers bell can be easily mounted on doors or walls, instantly enlivening your space. Perfect for Christmas home decor, it adds a touch of retro flair and ensures you're always pleasantly surprised by incoming guests.

Door Chimes when Door Opens for Home The Caregiver Pager Door Alarms for Dementia Patient has 55 chimes and 5 levels of adjustable volume. The wireless door entry alert LED indicator light is suitable for the elderly and hearing impaired.