Beichenyu 220728 Long Range Wireless Mailbox Alarm with Doorbell Sensors User Manual
- June 16, 2024
- Beichenyu
Table of Contents
Mailbox Alert
User Manual
Product Overview
The mailbox alert allows you to receive instant sound and flashing light notifications every time the mail arrives. It also flashes orange light slowly after mailbox was opened, in case you missed the instant notifications.
Main Features:
- Get instant notificaitons once the mailbox is opened.
- Remind you that there is a new mail if you missed instant notification.
- 3 mailbox remind tone can be selected.
- Compatible with doorbell push button.
- IP55 waterproof transmitter.
- Learning code and expandable extra transmitters or receivers.
- Easy to intall and operate.
CONTACT INFORMATION
Company Name: shenzhen Beichenyu Technology Co.,Ltd
Add: B1010, yongxiang road 8 street no.7, shenzhen, guangdong
Email: linkshowservice@gmail.com
Facebook: https://www.facebook.com/profile.php?id=100076516793553
Specifications
| Input of Receiver: | DC 5V or DC 4.5V AAA*3 |
|---|---|
| Operating Current of Receiver: | <100MA |
| Standby Current of Receiver: | <600UA |
| Power of Transmitter: | 12V 23A Alkaline Battery |
| Waterpoof of Transmitter: | IP55 |
| Frenquency: | 433.92MHz |
| Wireless Distance: | 500Ft |
| Operation Temperature: | -20℃~55℃ |
Notice Before Installation
Mailbox alert relies on wireless radio technology which is subject to physical and environmental considerations. These products do not have an out of range function and as such should be tested periodically in the setting in which they are to be used to understand their area of effective operation.
- Please install receiver as close to the mailbox transmitter as possible.
- Radio signal will be affected by metal, wall, concrete and barrier etc., please first test whether the operation range you choose is proper before install them.
- Please install the receivers away from induction cooker, television and horn wherethere is interference of magnetic and signal.
- The shorter the linear distance between receiver and transmitter, the better the wall penetration performance of signal is.
Installation Method
For Receiver:
Place 3 AAA batteries into receiver or insert USB cable into the
port.
Note: Please remove the battery when using USB
For Transmitter:
Stick it on the bracket with double-sided adhesive and stick it on the
mailbox door. Install transmitter on the bracket with right direction. It will
send signal when mailbox door is opened.
Note: Please test functions after installation.
Structure Diagram

1. Volume Button/Paring Button
2. Music Button/Reset Button
3. Battery Cover| 4. Speaker
5. Light Cover/Select Mailbox Prompt Tone
6. 5V USB Port
---|---
7. Mailbox Sensor/Transmitter
Operating Instruction
-
Select mailbox prompt tone: Press the light cover 5 seconds each time to choose the prompt tone. There are 3 tones to choose from.
You will hear prompt tone along with “Ding” sound when mailbox is opened. -
If you missed the instant notificaiton when mailbox was opened, the orange flashing light slowly reminds you that there is a new mail. Short press the light cover to remove the reminds and wait for new mails.
-
Long press the music button for 5 seconds until you hear a sound. All transmitters bound to receiver will be cleaned. Long press the volume button on the receiver for 5 seconds until you hear a sound and see Turn your mailbox transmitter over at the same time. It is successful if you hear “Ding” and mailbox prompt tone. Turn your mailbox transmitter over again to confirm the pairing is done. Turn your doorbell transmitter over at the same time. It is successful if you hear “Ding” and doorbell prompt tone. Turn your doorbell transmitter over again to confirm the pairing is done.(Function expansion:When you have other sensors from Linkshow) Note:
1. Please complete all pairing within 5 seconds to prevent exceeding the pairing time.
2. The email reminder will continue to flash until someone turns it off (the doorbell reminder will only sound and light once). -
Pairing receiver with extra transmitters, like doorbell push button, door sensor, etc.. (If purchased)
a. Short press the music button to choose music from 58 melodies.
b. Long press the volume button on the receiver for 5 seconds until you hear a sound and see orange flashing light.
c. Trigger your transmitter at the same time.
d. It is successful if your hear the music that you chosen.
e. Trigger your transmitter again to confirm the pairing is done. -
Reset: Long press the music button for 5 seconds until you hear a sound. All transmitters bound to receiver will be cleaned.
Warning
- You’d better use the high quality battery, avoid using the ones with short life and easy leakage of electrolyte.
- Be sure to protect the precision electronic components, and non-professionals are not allowed to open it for maintenance.
Trouble Shooting
- The receiver doesn’t sound.
● Check whether the power supply of the receiver is working.
● Check the mailbox transmitter battery, and if necessary, replace the battery.
● The receiver may not be paired with the mailbox transmitter.

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