L758DR Sekonic

3.5 x 6.7 x 1.9" (90 x 170 x 48 mm) (WHD) 

9.5 oz (268 gm) with battery 

Second ISO film speed setting: ISO 3 to 8000 (in 1/3 stop) 

One CR123A battery (3V Lithium dry cell); 60 hours; With 3 level status icon; Auto Power Off: 20 minutes after last use (10, 5 or no shut off in custom setting mode)Operating temperatures: 14 to 122°F (10 to 50°C)Storage Temperature: 4 to 140°F (20 to 60°C)