This super compact module can detect motion from a distance of up to 4 meters by using infrared. Aside from the distance, it can coveran angle of 100°. This sensor is easy to interface and uses simple logic level signal output.
Features:

1. detects motion from up to 4 meters away
2. easy to interface with, uses a simple logic level signal output
3. 2 modules included

Specifications:

1. supply voltage: 3,3 - 5 V
2. operating current: 15 µA
3. output signal voltage: high: 3 V, low: 0 V
4. detection angle: 100°
5. detection distance: 3 - 4 meters
6. weight: 4 g
7. dimensions (W x L x H): 34,4 x 20,0 x 12,5 mm

manual_wpse353.pdf

wpse353_example_code.zip

ce_rohs_open.pdf