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US-015 (Ultrasonic Distance Sensor Module)
US-015 Ultrasonic ranging module is capable of the 2cm ~ 4m non-contact distance measuring function, contrast to the HC-SR04 Ultrasonic Ranging Sensor , this module has a larger measure range. the supply voltage is 5V, The static power consumption is less than 3mA. This module supports the GPIO Communication mode, which is stable and reliable with the watchdog.
- Working Voltage: 5VDC
- Output Signal: Electric frequency signal, high level 5V, low level 0V.
- Working Temperature : 0-70C
- Static Current: Less than 3mA
- Sensor angle: Not more than 15 degrees.
- Detection distance: 2cm~400cm.
- Precision: 0.3cm + 1%
- Mode of connection: VCC / trig(T) / echo(R) / GND
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DHT11 (Temperature and Humidity Sensor Module)
DHT11 Temperature and Humidity Sensor Module with LED Power Supply Indicators
Features:
- Can detect surrounding environment of the humidity and temperature
- DHT11 sensor adopts
- Humidity measurement range: 20%-95%, humidity measurement error: +-5%
- Temperature measurement range: 0 -50 ;measurement error: +-2 degrees
- Working voltage 3.3 V-5 V
- Output form: digital output
- Has fixed bolt hole and easy installation
- PCB size: 3.1cm x 1.4cm
DHT22- (Temperature and humidity sensor)
Product description:
The DHT22 module is designed to measure the temperature and humidity of the atmosphere. The difference from the younger model (DHT11), The DHT22 has a wide range and a high precision determination of temperature and humidity. The sensor works on the OneWire bus, which makes it possible to connect it to the Arduino only three wires ( two of which are POwer supply). Low power consumption allows you to install it on stand-alone devices.
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SPECIFICATIONS:
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MQ-8 (Hydrogen Gas Sensor Module)
MQ-8 Sensor Information: sensitive material MQ- 8 gas sensors used in clean air, low conductivity tin oxide (SnO2). When there is an environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-8 hydrogen gas sensor of high sensitivity monitoring of other hydrogen-containing gas is also very good. The sensor can detect a variety of hydrogen-containing gas, in particular, city gas, is a low-cost sensor suitable for a variety of applications.
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