Specifications:

Output Interface: UART/115200/LVTTL
Protocol: Micolink/Mavlink/MSP
Output Rate: 50Hz
Firmware Supported: Ardupilot/PX4/INAV/FMT
TOF Range: 6m@90% reflectance/1K Lux; 4m@90% reflectance/70K Lux;
Center Wavelength: 940nm
Emitting Angle: 2 °
Dead Zone: 2cm
Ranging Accuracy: 2cm(<2m@90% reflectance); 1.5%(>2m@90% reflectance)
Optical Flow FOV: 42 °
Max Speed Measurement: 7m/s@1m height
Ambient Light Demand of Optical Flow: >60Lux
Optical Flow Working Distance: >8cm
Power Consumption: 200mW (40mA@5V)
Supply voltage: 5V

You can purchase it at this link

https://robofusion.net/products/micoair-optical-flow-range-sensor-mtf-02p-compatible-with-ardupilot-px4-inav