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the first one is
Garmin GPSMAP 76Cx
the product will not same as shown in image but you will get working product
Made of aluminum alloy with surface anodizing treatment
Jsn-sr04t Ultrasonic Sensor Module Distance Measuring Sensor mosfet the first one isThis module uses the simple method, a control port with a 10US above high level, can wait for high level output at the receiving port. An output can drive the timer, when this port is low can read the timer value,this time for the location of the time, can be calculated distance. So constantly cycle test, that can achieve the measurement of the value of your mobile. Specifications of JSN SR04T Ultrasonic Sensor Module Distance Measuring Sensor
US$ 45.00
US$ 115.00
US$ 35.00
