1) Do you know what it is? Yes
2) Do you have it? No
3) Would you buy/fit it? Have considered.
4) If so, why, if not, why not.
Not sure if this product is sufficently dependable. Would prefer azimuth info, but install problem with the larger unit.
Would like to have an affordable fix install TCAS, (maybe install the sensors with the wing-tip lights?) I'm convinced it's necessary, especially when low sun, coastal fog or industrial haze/ inversion. Eyes are not good enough. Anyone who believes their look-out is sufficent for fast jet conflict has never been there.