Echo detector S.T.A.L.K.E.R.: Clear Sky and S.T.A.L.K.E.R.: Call of Pripyat.

The Echo Detector is a basic Anomaly and Artifact detector featured in S.T.A.L.K.E.R.: Clear Sky and S.T.A.L.K.E.R.: Call of Pripyat.

The Echo detector is capable of finding artifacts, although its effective search range is short compared to other detectors. This device only vaguely determines the distance of the player from the artifact when it flashes and "beeps". As the player gets closer to the artifact, the faster the flashing and beeping goes and if one is getting farther, vice versa. It is possible to determine the direction of an artifact, as turning towards or away from the artifacts location will slightly speed up or slow down the detectors beeping; However, it is hard to distinguish this from the artifact moving around