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Showing 76–90 of 170 results
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	SensorMQ-135 Air Quality Sensor- High sensitivity to Ammonia, Sulphide and Benzes
- Stable and Long Life
- Detection Range: 10 – 300 ppm NH3, 10 – 1000 ppm Benzene, 10 – 300 Alcohol
- Heater Voltage: 5 V
- Dimensions: 18 mm Diameter, 17 mm High excluding pins,Pins – 6 mm High
- Long life and low cost
- Domestic air pollution detector
- Industrial air pollution detector
- Portable air pollution detector
 SKU: STEM18077
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	SensorMQ-4 Methane Natural Gas Sensor- Good sensitivity to Combustible gas in wide range
- High sensitivity to CH4, Natural gas
- Small sensitivity to alcohol, smoke
- Oxygen concentration: 21%(standard condition)
- Wide detection range
- Port explanation : DO for digital output, AO for analog output
 SKU: STEM18072
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	SensorMQ-7 High Sensitivity CO Carbon Monoxide Sensor- Has better sensitive detection for carbon monoxide, which with lower conductivity in clean air
- High quality double panel design
- Power and TTL signal output indication
- Has a long service life and reliable stability
- Mainly used for SNO2 collection detection in family, factory, underground operation
 SKU: STEM18075
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	IOTNode MCU ( ESP8266)- Open-source, Interactive, Programmable
- Wi-Fi Module: ESP-12E module with 6 extra GPIOs
- USB: Micro USB port for power, programming and debugging
- Headers: 2 x 2.54 mm 15-pin header with access to GPIOs, SPI, UART, ADC and power pins
- Drive Type: Dual high-power H-bridge
- Flash size: 4 MB
- Transfer rate: 110-460800 kbps
- Miscellaneous: Reset and flash buttons
 SKU: STEM18039
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				 Raspberry Pi Pico
Raspberry Pi Pico						 Sound Sensor
Sound Sensor						 Safety Goggles
Safety Goggles						 USB Cable Set Mini( Nano Cable)
USB Cable Set Mini( Nano Cable)						 Resistor Box
Resistor Box						 Return measuring tape
Return measuring tape						 MQ-2 Smoke Detection Sensor
MQ-2 Smoke Detection Sensor						













 
		 
		 
		