Wolf-Guard 433 MHz hw-03 PIR Motion Sensor, 12 m PIR Motion Sensor

The Wolf-Guard HW-03 PIR Motion Sensor is a wireless motion detection device that operates on the 433 MHz frequency, commonly used in home security systems. Here are the key features and specs of the HW-03 model:

 Specifications:

• Model: HW-03
• Type: PIR (Passive Infrared) Motion Sensor
• Detection Range: Up to 12 meters (typically in open space)
• Detection Angle: Usually around 110–120° horizontally (may vary slightly)
• Frequency: 433 MHz (used for wireless communication with an alarm host or control panel)
• Installation Height: Optimal at 2.1–2.2 meters for best performance
• Power Supply: Typically 3V DC (2 × AA or AAA batteries) – depends on the specific version
• Battery Life: Can last up to 6-12 months under normal use
• LED Indicator: Lights up when motion is detected (can often be disabled for stealth mode)
• Anti-Tamper Function: Alerts when the unit is opened or removed
• Pet Immunity: Some versions offer pet immunity (e.g., <15kg animals) – check specific variant

 Use Cases:

• Home security systems
• Garage or shed intrusion detection
• Office/warehouse protection
• Integrated smart home alarms (must be compatible with 433 MHz)

 Compatibility Notes:

• Must be used with a 433 MHz-compatible alarm panel (such as Wolf-Guard systems or other third-party ones that support learning 433 MHz devices)
• Not Wi-Fi or Bluetooth enabled – purely RF (radio frequency)

 Pros:

• Wireless and easy to install
• Long battery life
• Reasonable detection range and coverage
• Can be integrated into various RF security systems

 Things to Consider:

• Not standalone – needs a base station or alarm host
• Susceptible to interference if there are many RF devices nearby
• Requires line of sight for optimal detection