the sensor is basically this https://www.mouser.com/ProductDetail/SparkFun-Electronics/SEN-13322/?qs=WyAARYrbSnberEHb08L3VQ%3D%3D&gclid=EAIaIQobChMIrLCQwrOw2gIVBglpCh1h2gKQEAQYASABEgKdW_D_BwE