Detecting Area: 100¡¿400mmDetecting Speed: 40-80cm/secAlarm Mode: sound and lightSensitivity can detect a needle (33.3¡¿0.56mm): 11cm(from the detecting surface)Power:90~250VDimensions(W¡¿L¡¿T):450¡¿300¡¿75mmWeight;about 15kg.