Dimension (LxWxH): 223*92*45mm Weight (W/OBattery): 185g Ambient Condition: below 30-80%RH (w/o condensation) Battery: 6F-22 9V Metal Test (Ref.Value): Steel pipe(Diameter¦Õ15) Test Depth 24mm Voltage Test (Ref.Value): AC110V Depth 20mm AC220V Depth 20mm Wood Test (Ref.Value): Wood Framing (up to 15mm). Each item in one Double Blister 6 pcs / inner; 24 pcs/ctn inner ctn size: 31.5*18.5*31.5cm ctn size: 65.5*39.5*33cm Gw/Nw: 9/8 Kgs.