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Product Description
The motion detector module is based on infrared technology, automatic control module and LHI778 probe design. This ensures high sensitivity, high reliability and ultra-low voltage operation mode.
It is widely used in various electric auto-sensing devices, especially battery-operated auto-controlled products.
The module is also equipped with a so-called Fresnel lens, a special type of filter that focuses infrared radiation onto the sensor.

Particularities
- High sensitivity and reliability
- Soldered-in jumper for setting temperature compensation
- Direct switching of relays
- Ideal for use with microcontroller boards
- The perfect module for any household
Technical specifications
Model | HC-SR501 |
Material | Long-lived staku laminate (CCL) |
Dimensions | 33 x 25 x 30mm [1.3 x 1 x 1.2in] |
Lens diameter | 23mm |
Operating voltage | 5V DC |
Electricity | 65mA |
Dormitory | Less than 50µa |
Blocking period | 200 milliseconds |
Recording area | 110 degrees |
Switching distance | up to 7 meters |
Blocking period | 200 milliseconds |
Block time | from 2.5 seconds (standard) up to 10 seconds |
Trigger methods | L - Deactivate, H - Activate repeat trigger |
Operating temperature | From -15 to +70 ℃ |

High switching distance
Thanks to the infrared PIR sensor and the Fresnel lens, the sensor has high switching distance of up to 7 meters and can thus detect movements quickly.

Quick start guide
When buying one of our high-quality products, you will also receive an inclusive e-book for a quick introduction to the world of microelectronics.
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