Single Relay Module Bluetooth Proximity Switch Module

The product information is as follows:

Name:Single Relay Module Bluetooth Proximity Switch Module Auto Sense Cell Phone Proximity Unlock Module
1. Supports Automatic Induction Switch When Mobile Phone Is Close, No Need For App System Bluetooth Direct Connection
2. Support App/Small Program/Serial Port And Other Methods To Configure Parameters
3. Support At Commands To Modify The Switch Lock Signal Value, Switch Lock Mode And Switch Duration
4. Reserved Uart Interface To Support Sending And Receiving At Commands
5. Low Power Consumption And Stable Performance

Product Name: Bluetooth Proximity Switch Single-Channel Relay Module, Automatic Sensing, Mobile Phone Proximity To Unlock
Model: Bluetooth Proximity Switch Single-Channel Relay Module
Note:
Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use
Colour:As Shown
Material:PCB+Plastic

Package Contents:
1 x Bluetooth Proximity Switch Single Channel Relay Module
1 x 4P Single Row Pin

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.