Ultrahangos távolságmérő HC-SR04

Very accurate distance measurement, with an accuracy of up to 3 mm at a distance of up to 4 meters. It works on the principle of reflection from an obstacle. Quality power is important for accurate measurements.. Technical parameters:. - measuring range: 2 - 450 cm. - accuracy: 3 mm. - working angle: <15 °. - quiescent current: <2 mA. - supply voltage: 5 V DC. - size: 45 × 20 × 16 mm. Note: the area of the measured object should be larger than 0.5 m2 and should not be fragmented. The product is not a stand-alone unit, it requires professional installation.