30pcs MQ-4B Sensor Gas Sensor CO CO2 Smoke Methane Sensor Detecting MQ Sensor DIY for Safety Detection System
$60.39
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-4B methane 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-4B methane sensor has high sensitivity to methane and strong anti-interference ability to alcohol and other disturbing gases.
Characteristics
This product has good sensitivity to methane 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 detectors
Basic Circuit
The figure above shows the basic test circuit for the MQ-4B 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
30 x MQ-4B Sensor Gas Sensor CO CO2 Smoke Methane Sensor
Weight | 0.06 kg |
---|
Customers Also Viewed
USR-ES1 W5500 Chip SPI to LAN Ethernet Converter TCP/IP Module WIZ820io
$15.30Converter BoardAdd to cart>>>Manual:Click here to openOverviewUSR-ES1 embeds Wiznet’s W5500 chip, which uses hardware logic gates to implement the transport layer and network layer of the TCP/IP protocol stack (such as TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE, etc.), and integrates The data link layer, physical layer, and 32K bytes of on-chip RAM serve as data transceiving buffers. …
USR-ES1 W5500 Chip SPI to LAN Ethernet Converter TCP/IP Module WIZ820ioRead More
3pcs TEC1-12715 12V Heat Sink thermoelectric Cooler Peltier Plate Module
$32.04Electronic Accessories & SuppliesAdd to cart40 x 40mm TEC1-12715 12V Heatsink Thermoelectric Cooler Peltier Plate ModuleDescriptionSolid state, vibration free, noise-freeSimple to install and operateThe hot surface need to be good heat sinkSpecificationProduct name:thermoelectric cooler plate moduleModel:TEC1-12715Color:whiteCouples:127Voltage:12VUmax:15.4VImax:15AMax power consumption:231WTmax:70°CQcmax T=0(W):137WSize:40 x 40 x 3.3mmWeight:50gPackage included3 x TEC1-12715 cooler plate module
EQKIT KM-1 DC 6-12V PWM Motor Speed Controller Kit DIY Motor Speed Regulator Set Stepless Speed Control
$8.73Module KitsAdd to cartSpecificationsModel:KM-1Operating voltage:DC 6-12VPCB board size:40 x 40mmCircuit descriptionKM-1 uses PWM (pulse width modulation) to control the speed of the motor, adjust the pulse width duty ratio, so that the speed from zero to the maximum speed stepless speed regulation. The wider the crest width of the control waveform, the faster the motor speed; on the …
20pcs 63V 10000UF 105 High Frequency Temp Electrolytic Capacitor 30mm x 50mm Long Life
$108.62Electronic Accessories & SuppliesAdd to cartSpecificationModel:485622Voltage:63VCapacitance:10000UFTemperature:105→Diameter:30mm / 1.1 inchHeight:50 mm / 2 inchFeaturesLong life, high temperatureHigh-frequency capacitorsPackage included20 x Electrolytic Capacitor
Reviews
There are no reviews yet.