Counts in 7sec or 60sec intervals and then pauses the count before starting over. Values are displayed in LED's and an audible click is heard for each particle detected. I need a day's warning so I can get the source.

Pira DCS # 7D10.10

Radioactive Source   Raditation Detector   Wood Stand
Wood Block   Various Material Sheets   Steel Pole
Finger Clamp   90 deg pole clamp   Cenco Black Table Clamp