Specifications:

• Screen size: 42×22 mm (1.65″ x .87″)
• Operating temperature: -18 - +71°C (0~160°F)
• Depth range: 0.75 - 90m (2.5 – 300 ft)
• Waterproof Rating: IPX8 to 200 ft (60 m)
• Battery: 9 Volt Alkaline
• Battery life: 25 hours
• Transducer frequency: 200 kHz
• Transducer beam angle: 14 degrees