Enhance security and save energy with our best motion sensors including PIR and Microwave sensors shop online from anywhere in New Zealand

Frequently Asked Questions

• What is a Passive Infrared (PIR) sensor?
  A Passive Infrared (PIR) sensor is a device that detects infrared radiation emitted by objects within its field of view, commonly used for motion detection in various applications.
• Which sensor is better, PIR or microwave?
  PIR sensors are typically more cost-effective and energy-efficient than microwave sensors. However, the overall expense and energy usage can vary based on the specific models and their applications.
• What does a PIR sensor detect?
  A PIR sensor can detect changes in the amount of infrared radiation impinging upon it, which varies depending on the temperature and surface characteristics of the objects in front of the sensor.
• What distinguishes PIR sensors from other motion sensors?
  Unlike other motion sensors that emit signals, PIR sensors passively detect infrared radiation. They are particularly effective for detecting the heat emitted by living beings, making them suitable for motion detection.
• Do PIR sensors only detect people, or can they detect other objects too?
  PIR sensors primarily detect changes in infrared radiation patterns caused by warm objects. While they are commonly used for human detection, they can also respond to other heat-emitting objects, such as animals or machinery.
• Are PIR sensors suitable for outdoor use?
  Yes, many PIR sensors are designed for outdoor use. However, environmental factors like temperature extremes, rain, or direct sunlight can impact their performance. Weather-resistant models are recommended for outdoor applications.