The best helper for liquid level bubble level measurement, more direct training angle, more precise measurement, waterproof body, anti-shock and shock resistance, the whole machine is made of high-strength ABS engineering plastic, and the buttons arenot easy to break when falling from a high place. Soft silicone is used for the touch. Comfortable Intimate, practical and convenient hand strap, made of durable material, prevents the machine from falling off during measurement, is convenient to carry, and is easy to record. It has sets of reasonable data storage. The RandD engineer has discovered sets of data after many user measurement habits and researches. The storage is just right, it is more convenient to check and remember The snap-on battery compartment tripod universal screw port, using 2 AAA dry batteries, the number of measurements is more than 5000 times, the bayonet-type battery door, the humanized design behind the pure quick-junction rangefinder Stabilize the countryand measure more accurately