What is the size of each module? (*NOT* the size of the package)

The circular circuit-board base is about 16 mm diameter x 1 mm thick. The connector plastic extends about 3 mm below the bottom of the base. The plastic dome housing the sensor is about 9.5 mm diameter x 10 mm high (height above circuit board).

What is the sensitivity with different sensitivity resistors? a table of delay time versus resistance is given. not sensitivity. comes with zero ohm.

It comes with zero ohm resistor seems being config for max sensitivity. Usually it is about 5-7m. I am not sure about this sensor since I didn't test. I asked for it I was not provided.

When there's continuous motion, does the output remain high or does it toggle low/high continuously?

It stays high till motion stops.

What is the volt. regulator on these things?? As far as i can tell, they don't actually exist except on these sensors!! A datasheet... something??!

Voltage supply range is 3.3V-15V (voltage input to the sensor), and voltage out/control from the sensor is 3.3V

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🚀 Elevate your smart projects with pinpoint motion sensing—don’t get left in the dark!

COMPACT EASY INTEGRATION - Miniature size and simple installation let you embed advanced motion sensing into any DIY or professional setup.
CUSTOMIZABLE OUTPUT TIMING - Adjust output high-level duration from 2.5 seconds up to 1 hour by swapping a resistor—tailor it to your exact needs.
ULTRA LOW POWER CONSUMPTION - Consumes just 20µA in standby, making it ideal for energy-conscious smart devices.
FLEXIBLE POWER COMPATIBILITY - Operates seamlessly between 3.3V and 15V DC, fitting perfectly into your Arduino or Raspberry Pi projects.
PRECISION DETECTION ZERO DELAY - High sensitivity PIR sensor with up to 5 meters range ensures you never miss a movement.

The HiLetgo MINI SR602 is a high-sensitivity pyroelectric infrared motion sensor module designed for Arduino and Raspberry Pi applications. It detects human movement up to 5 meters, supports a wide DC power range (3.3V-15V), and features adjustable output timing from 2.5 seconds to 1 hour. With ultra-low quiescent current and compact design, it’s perfect for security, automation, and smart device projects.

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