Wireless Smart Mailbox Alarm with LED and Adjustable Sound

Whenever the mailbox door is opened more than 45 degrees (Note: the sensor will not be triggered if the mailbox door is not opened more than 45 degrees relative to the gravity direction), our mailbox sensor alert wireless triggers an alarm on the mailbox alert wireless. Even if a mail arrives while you're away, it'll keep flashing to remind you. You can press the top of the receiver to turn off the flash.

Our mailbox alarm wireless long range can be used only for post-mail mailboxes that open down similar to the mailbox in the picture, or other mail chime only works if the mailbox cover opens downwards (Note: other horizontally open ones are not supported). The mailbox sensor works well in all seasons and has an operating range of -20 to 50 degrees Celsius.

Our mailbox sensor alert wireless supports alarms at a maximum distance of 800 ft in the open air (you need to confirm whether it can be triggered before installation), IP55 waterproof level, and is not afraid of rain or snow. The mailbox sensor installed on the mailbox door has a built-in battery, ultra-low power consumption, and can be triggered more than 5,000 times at most. It can be used for many years, so that you do not need to replace the battery frequently, saving you time. The receiver supports USB power supply or 3 AAA battery power supply, which is efficient and environmentally friendly.

The sliding buckle design allows the receiver to be easily fixed on the wall. First, use expansion screws to fix the base to the wall, then point the USB port toward the direction of the white arrow on the base, and gently click just push. The mailbox sensor can be easily stuck on the mailbox door with double-sided tape (note: the Up indicator arrow needs to be facing the top of the mailbox door during installation).

When you open the mailbox, it will emit a warm yellow light and a gentle reminder. When you get tired of the reminder sounds, you can switch to other reminder sounds, up to three types are supported. The wireless mailbox alert have reserved 5 levels of volume, and the silent mode can prevent your children, elderly and pets from being frightened.

Are you tired of checking your large mailbox countless times every day? Or maybe you're worried about someone stealing your delivery? With our mailbox sensor alert wireless, you'll be alerted immediately whenever a delivery arrives. This will save you a lot of time.

We have conducted rigorous testing on the products you received, but we do not rule out special extreme cases. If you are lucky enough to encounter this problem, please remove the transmitter and reinstall it, pointing the "up" direction to the bottom of the mailbox, and then try to trigger again. If it still doesn't work, please re-pair according to the instructions or find us at Amazon.

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