Precision to: ± 1 y/m – Range: 5-1500 y/m – Bluetooth: 4.1 – Environmental rating: Waterproof – Pairs with Smart HD: Obsidian II or higher – Smart HD optics compatibility: X-Sight II HD Series X-Sight 4K Series ThOR 4 Series – Battery life: 6 months or 50000 measurements – Battery type: 1 x CR123A type 3 V – Size: 437x343x28/111 x 87 x 71 mm – Weight: 0.8 lb / 360 g – Warranty: Two years