Built-in lithium battery, lifespan 6 years Large LCD screen displays parameters such as instantaneous rate and cumulative rate Infrared interface, RS485 + M-BUS IP68 Using nylon composite materials as the main body, it can work for a long time at a depth of 2 meters underwater Space-saving installation, made of special materials, -, low-cost investment with no pressure loss, Weight: 3.02915147988 Pounds, Manufacturer: Frewurwer