Distance meter Quadro PS 7350 Measures distances with ultrasound and laser pointer in two directions at once. Calculator function for surface areas and volumes. Effective measuring range: One-sided measurement: 0,5 – 16m; Bidirectional measurement: 1 – 32m Max. measuring distance: 40 m (in the standard test procedure) Standard selection: Left corner, mid-point, right Corner Resolution: 0,01 m Power supply: 9 V compound (e.g. 6LR61) Accuracy: +/- 1 % +/- 1 decimal place Automatic switching off: If not in use, the device switches off automatically after 60 seconds Laser wavelength: 630 – 660nm Operating temperature: 0° C to 40 ° C (32 ° F to 104 ° F) Dimensions: 170 x 85 x 40 mm