Long shipping times due to vacation. Normal shipping is expected week 33.

Noname HC-SR501 based PIR sensor. 

• Adjustable sensitivity approx 3-7m
• Adjustable time delay approx 0.5-300 seconds.
• Operating voltage range: DC 4.5-20V
• Quiescent Current: <50uA
• Level output: High 3.3V/Low 0V
• Detection angel: 100 degree cone.

Dimensions:

• Length: 24mm/0.94in
• Width: 33mm/1.27in
• Screw hole distance: 28mm
• Screw hole diameter: 2mm
• Height (with lens): 25mm/0.97in
• Weight: 5.87g/0.2oz

Here is a Connection guide.

Here you can read about more details of how it works, and other appliances, http://www.elecfreaks.com/wiki/index.php?title=PIR_Motion_Sensor_Module:DYP-ME003