50pcs MQ-2B Sensor Gas Sensor CO CO2 Smoke Detecting MQ Sensor DIY for Safety Detection System
$95.04
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Size Conversion
Inches
Centimeters
Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
Overview
– The gas sensing material used in the MQ-2B gas sensor is tin dioxide (SnO2) with lower conductivity in clean. When there is a flammable gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of flammable gas in the increases. The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit.
– The MQ-2B gas sensor is highly sensitive to propane and smoke and for the detection of natural gas and other flammable vapors. This sensor detects multiple flammable gases and a low-cost sensor for a wide of applications.
Characteristics
This product has good sensitivity to propane, smoke, etc. in a wide concentration , and has the advantages of long life, low cost, and simple driving circuit.
Application
Widely used in household gas leak alarms, industrial combustible gas alarms and portable gas detection instruments.
Basic Circuit
The picture shows the basic test circuit for the MQ-2 sensor. The sensor requires two voltages to be applied:voltage (VH) and test voltage (VC). The VH is used to provide a specific operating temperature for the sensor, either DC or AC. The VRL is the voltage across the load resistor (RL) of the sensor in series. VC is the voltage for testing the load resistor RL and requires a DC power supply.
Package Included
50 x MQ-2B Sensor Gas Sensor CO CO2 Smoke Sensor
Weight | 0.1 kg |
---|
Customers Also Viewed
Pellet Grill Cover Smoker Heavy Duty Waterproof Patio Outdoor Barbecue BBQ
$32.39Solar CollectorsAdd to cartDescriptionPellet Grill Cover Smoker Heavy Duty Waterproof Patio Outdoor Barbecue BbqSpecificationsColor:BlackSize:142*57*100cm / 56inchL x22.5inchD x39inchH Features:Waterproof, Tear Resistant, Heavy DutyFeatures— Constructed from 600 Denier polyester oxford fabric with water resistant PVC coating,this heavy duty grill cover and tough fabric provides a powerful protection against any weather:snow,hail,rain and wind etc,and gives your grill all year round …
Pellet Grill Cover Smoker Heavy Duty Waterproof Patio Outdoor Barbecue BBQRead More
52Pi Acrylic Plastic Black Case with 3030 Cooling Fan for Rasberry Pi 4B
$16.07Raspberry Pi & Orange PiAdd to cartSize ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.DescriptionCompatible with the Newest Raspberry Pi 4 Model B.Protective case is easy to assemble.Material:Top & Bottom are clear acrylic layers; the Middle is ABS plastic layers.Access to all Pi Ports:Power, Video/Audio, USB, …
52Pi Acrylic Plastic Black Case with 3030 Cooling Fan for Rasberry Pi 4BRead More
DC 12V 2 Channel RS232 Relay Module Board Remote Control USB PC UART COM Serial Ports for Smart Home
$14.20Relay ModuleAdd to cart>>>Manual:Click here to openFeaturesChannel:2-channel relay;there are 2 expansion IN ports, low level output Interface:DB9 female RS232 level,can control relay on/off/self-lock/inching by computer terminalOperating Voltage:DC 12V (range:8.5-13.5V)Control Voltage:DC 9V 12V or DC 8.5-13.5V/AC 85-265VControl Current:10APackage Included1 x 2 Channel RS232 Relay
5pcs Green Light Mini 0.36 inch DC Current Meter DC0-999mA 4-30V Digital Display with Reverse Connection Protection Ammeter
$43.50Test & Measuring ModuleAdd to cartFeatureModule name:Current display module:Measurement accuracy:0.10%Refresh rate:About 200ms – times:Display method:Three digits 0. 36inch digital tubeMeasuring range:0A-999mA:Power supply range:4V-30VWorking current:Less than 8mA:Display color:GreenStorage temperature:-10°C to +65°C:Input resistance:50 milliohmsWeight:10g:Peripheral size:35*14*10mmWiring diagram– The ground wire of power supply end and measuring end of this ammeter adopts common ground design, that is, the ground wire of the power supply …
Reviews
There are no reviews yet.