Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	SR602
Detection Angle	100 degrees cone angle
Operating Voltage	DC 3.0V - 5.0V
Current Consumption	< 60 microamps
Output Signal	High level output upon detection
Delay Time	Adjustable via external resistor/capacitor
Dimensions	18mm x 12mm x 7mm
Lens Type	Fresnel Lens included
Operating Temperature	-20°C to +70°C
Application	Automatic lighting, security alarms, toy activation

6 reviews

Anonymous

Mar 25, 2026

Rating: 4/5

Works as described

Does exactly what a PIR sensor should do. The only reason for 4 stars instead of 5 is that the included lens feels a bit fragile, so handle with care during assembly.

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect for my Arduino project

This SR602 module worked flawlessly with my Arduino Uno. The sensitivity is impressive, and it detected movement consistently from about 4 meters away. Easy to wire up.

Anonymous

Mar 13, 2026

Rating: 5/5

Reliable component

Bought five of these for a robotics class. All of them functioned perfectly out of the box. The pinout is standard and easy to understand.

Anonymous

Mar 11, 2026

Rating: 4/5

Good value, small size

Very compact which was exactly what I needed for a tight enclosure. It takes a little trial and error to get the delay timing right, but once configured, it works great.

Anonymous

Mar 10, 2026

Rating: 5/5

Highly sensitive

I was worried it might be too sensitive and trigger falsely, but it handles ambient temperature changes well. Great for automatic hallway lights.

Anonymous

Mar 01, 2026

Rating: 5/5

Excellent for beginners

If you are new to electronics, this is a great starter sensor. There are plenty of tutorials online for the SR602, and this specific unit matched all the specs perfectly.

5 FAQ

Q: Does this come with mounting hardware?

A: This item includes the sensor module and the Fresnel lens cap. Mounting screws or adhesive are not included, but the module has two standard mounting holes for easy installation.

Q: Can this sensor detect motion through glass?

A: No, pyroelectric IR sensors generally cannot detect body heat through glass because standard glass blocks infrared radiation. The sensor needs a direct line of sight or a specialized IR-transmissive window.

Q: Is this compatible with 3.3V logic systems like ESP32?

A: Yes, the module operates between 3.0V and 5.0V, making it fully compatible with 3.3V systems such as the ESP32 or ESP8266 without needing a level shifter.

Q: What is the maximum detection range?

A: Under ideal conditions with a standard Fresnel lens, the SR602 can detect human movement up to approximately 5 to 7 meters. Range varies based on lens quality and environmental temperature.

Q: How do I adjust the sensitivity?

A: Sensitivity and delay time are typically adjusted by changing the values of the external resistors and capacitors connected to the designated pins on the module, as detailed in the datasheet.

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