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
5x 10x USB 8 LED Lights Handheld Stand Desktop Reading Magnifier
$24.29PhysicsAdd to cart5x 10x USB Eight 8 LED Lights Handheld Stand Desktop Reading Maintenance Multipurpose Magnifier 75RCDescription1. [2 In 1 Design]:It is not only a handheld magnifier, but also a desktop stand magnifier. It can be used as a desk magnifier by pulling its stand and placing it on a table. It can also be folded up …
5x 10x USB 8 LED Lights Handheld Stand Desktop Reading MagnifierRead More
DALY BMS 16S 48V 30A 40A 60A 3.2V 18650 Bluetooth 485 to USB Device NTC UART Software Togther Lion LiFepo4 Battery BMS
$12.14Battery Protection ModuleAdd to cartType 30A com UART BT / Type 30A com UART 485 / Type 30A com UART 485 CAN / Type 40A com UART BT / Type 40A com UART 485 / Type 40A com UART 485 CAN / Type 60A com UART BT / Type 60A com UART 485 / Type 60A com UART 485 CAN / Type USB to CAN box / Type USB to RS485
5Pcs Geekcreit 328P Multifunction Expansion Board V3.0 for NANO UNO
$24.26Expansion Board & ShieldAdd to cartDescriptionThe extension board specifically for the NANO , welding on two rows of pins, can be used in the duemilanove 2009, U N O R1Package included5 x 328P Multifunction Expansion Board V3.0
20pcs LilyPad MCP9700 Temperature Sensor Module
$55.07Sensor & Detector ModuleAdd to cartDescriptionDetecting temperature changes has never been easier. The MCP9700 is a small thermistor type temperature sensor. This sensor will output 0.5V at 0 degrees C, 0.75V at 25 C, and 10mV per degree C. Doing an analog to digital conversion on the signal line will allow you to establish the local ambient temperature. Detect physical …
IO22C04 4 Channel Pro Mini Relay Module Expansion Board Multi-function Delay Relay PLC Power
$24.04Relay ModuleAdd to cart>>>Manual:Click here to openFeatures– Operating voltage:power supply 1,DC 6.5-25V; power supply 2,DC 5V– Operating Current:Standby current (all relays closed) 15mA, 1 relay open 45mA, 2 relays open 77mA, 3 relays open 109mA, 4 relays open 140mA– Size:80x66x19mm– Weight:79g- On-board resources:4x opto-isolated inputs (low level trigger, NPN type), 4x buttons, 1 4 bit digital tube display, …
1-1000M 3W HF FM VHF UHF FM Shortwave Broadband Amplifier Upgrade Improved Version
$30.60Other Module BoardAdd to cartApplicationsBroadband RF power amplification, suitable for HF FM VHF UHF FM transmission of various radio applications, short-wave FM remote control toys, radio walkie-talkies, digital radio stations, etc., can output up to 3 watts, 15V voltage supply, 1MHZ to 1000MHZ can work frequency range.Technical indicators1. The supply voltage Voltage:DC + 12 ~ 15V (typical 15V @ …
1-1000M 3W HF FM VHF UHF FM Shortwave Broadband Amplifier Upgrade Improved VersionRead More
Geekcreit LTDZ 35M-4400M Handheld Simple Spectrum Analyzer Measurement of interphone Signal
$159.96Test & Measuring ModuleAdd to cartNew update version:Update from December, please use the new manual.Introduction:>>>Click here to openThis product uses the local oscillator signal and the external test signal to obtain the difference frequency signal, and calculates the amplitude of the external test signal through the detector. Using a high-precision VCO source, the heterodyne signal frequency can be measured very …
Geekcreit LTDZ 35M-4400M Handheld Simple Spectrum Analyzer Measurement of interphone SignalRead More
Reviews
There are no reviews yet.