This is a great low-cost PIR Sensor Infrared Motion Detector, operating at 433MHz.

Specification:

• Fit For 433MHz Wireless Home Alarm System
• Size: approx. 10 x 5.5cm
• Color: White
• Working Voltage: 1x 9v Alkaline battery
• Alarm Current: less than 15mA
• Stand By Current: less than 8uA
• Detecting Angle: 90 degree
• Detecting Distance: 6~8m
• Alarm Output: wireless output
• Transmitting Distance: approx. 120m (with no obstacles)
• Transmit Frequency: 433MHz (We also sell the 315MHz version)
• Temperature: 10℃ to 60℃ (approx 50℉ ~ 140℉)

Package included:

1x Wireless Motion Sensor