What is the range of the motion detector in the QH series SK602?

The detection range is 26 ft (8 m). The detection angle is approximately 45 degrees, whereas most motion sensors for security have a very wide detection angle of 110 degrees. We have chosen to use a narrow detection angle to reduce false alarms. The motion sensor can be placed up to 394 ft (120 m) far from the receiver (line of sight).