HC-SR501 motion sensor and 650nm laser module detection range

TECHNICAL SUPPORT Sensors & Modules
1

Customer:

I have a question about the HC-SR501 motion sensor and the 650nm (red) 5mW 3V laser module. What is the minimum detection distance of the motion sensor, and what are the minimum and maximum distances at which the laser emits its beam?

Original message (Croatian)

imam pitanje za senzor pokreta HC-SR501 i laser 650nm(crveni) 5mW 3V.

Zanima me na koliko minimlanoj udaljenosti senzor pokreta detektira i na kojoj minimalnoj i maksimalnoj udaljenosti laser emitira zraku.

Nadam se pozitivnom i brzom odgovoru.

Originally submitted via email support on 2 March 2023. Migrated to the forum for community visibility.

2

Soldered Support:

The minimum detection distance of the motion sensor is approximately 20 cm, while the maximum distance at which the laser emits its beam is approximately 1.5 - 2m.

Original message (Croatian)

minimalna udaljenost senzora pokreta na kojem detektira je oko 20 cm, dok je maksimalna udaljenost zrake koju laser emitira oko 1,5 - 2m.