Description
```html HC-89 Interrupt Sensor
With typical sensor applications sending data every 15-30 minutes
classrooms
Use a dedicated LiPo charger with 6S balance charging capability
Post-assembly
DC12V 4010 Double Ball Cooling Fan with XH2.54-2P 30CM Cable Size:40*40*10MM 125Khz RFID Reader TTL Module ```html HC-89 Interrupt SensorDC12V 4010 Double Ball Cooling Fan with XH2. 54 2P 30CM Cable Size: 40*40*10MM
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