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The Reed Switch Module is a magnetic sensor with digital output designed for obstacle detection
Product Barometric Pressure & Altitude Sensor BMP280 I2C or SPI Product Dimensions 19
Raspberry Pi Power Plug
Native USB supported by every OS - can be used in Arduino or CircuitPython as USB serial console
3V (quieter) and 5V (loudest)
DFRobot LED Voltage Meter Blue - DFR0130-B 800x600 The Reed Switch Module isThis is a standalone DC voltage meter. It measures 3V 30V with 1% accuracy. Best suited for battery level display. Just apply two wires on the power without any extra circuit or components, it gives the reading straight away. Easy to use, and is a good company with robotic applications. SPECIFICATION Measure Voltage: 3. 0 30V DC Refresh Rate: 2 Hz Accuracy: 1% SHIPPING LIST LED Voltage Meter (Blue) x1
US$ 16.00
US$ 27.95
US$ 29.95
US$ 24.95
US$ 29.95
