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A microwave motion detector uses microwave technology to analyze its environment. 
This is achieved by sending out microwave signals, and the length of time it takes for the signal to return to the motion detector is measured.
The HB100 Miniature Microwave motion sensor is used to measure movement and speed.
HB Series is the X-Band Mono-static 10.525GHz microwave DRO Doppler transceiver front-end module. 
Microwave presence detectors are sensitive to movement and are ideal for large spaces and areas that have an awkward shape or where fine motion detection is required like intruder alarms, occupancy modules, automatic door control switches, security protection systems, automatic video control systems of ATM cash dispensers, train automatic signal machines and other innovative ideas. 
This PIR sensor module consists of Dielectric Resonator Oscillator (DRO), microwave mixer and patch antenna.
Comparing with other detection methods, this method has the following advantages:
1. Non-contact detection 
2. Strong resistance to radio frequency interference 
3. Small output power, no harmful waves for the human body 
4. Long-range: detection range exceeds 20 meters 
5. Not affected by temperature, humidity, noise, airflow, dust, light And other effects, suitable for harsh environments.

Input Voltage: 4.75VDC ~ 5.25VDC
Recommended Input Voltage: 5VDC 
Output Type: Digital
Frequency Setting:10.520GHz ~ 10.530GHz
Long detection range: 20m
Output Power (EIRP): 12dBm ~ 20dBm
Spurious Emission: -7.3dBm
Settling Time: 3µSec ~ 6µSec
Received Signal Strength: 200µVp-p
Noise: 5µVrms
Current Consumption: 30mA ~ 40mA
Pulse Repetition Frequency: 2KHz
Pulse Width:10µSec
Operating Temperature: -15°C ~ 55°C
Size: 37mm x 45mm x 8mm

• Low current consumption
• CW or Pulse operation
• Flat profile
• Long detection range

Note 1: The radiated emissions of HB100 is designed to meet the requirements of Federal Communications Commission (FCC) rules, Part 15, Section 15.245 (use within a building or to open building door)
Note 2: The Received Signal Strength (RSS) is measured at the total 2 ways path loss of 93dB.
Note 3: The noise voltages are measured from 10 Hz to 100 Hz at the output port, inside an Anechoic chamber.
Note 4: Pulse operation.
Note 5: The design, manufacturing process and specifications of this device are subjected to change without prior notice.
Note 6: CAUTION: ELECTROSTATIC SENSITIVE DEVICE. Observe precautions for handling and storage

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