Elecbee 3pcs MQ-4B Sensor Gas Sensor CO CO2 Smoke Methane Sensor Detecting MQ Sensor DIY for Safety Detection System

SKU: EB0043594

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Key Features

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This product has good sensitivity to methane in a wide concentration , and has the advantages of long life, low cost, and simple driving circuit.

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Application:

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Widely used in household gas leak alarms, industrial combustible gas alarms and portable gas detectors

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Specifications

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Attribute

Value

Wireless Capability

Bluetooth

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Shipping Guide

Shipping	Delivery Period	For in-stock parts, orders are estimated to ship out in 3 days. Elecbee ships orders once a day at about 5pm except Sunday. Once shipped, estimated delivery time depends on the below carriers you chose. DHL Express: 3-7 business days DHLeCommerce: 12-22 business days FedEx International Priority: 3-7 business days EMS: 10-15 business days Registered Air Mail: 15-30 business days
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	Shipping Options	Shipping rates for your order can be found in the shopping cart.
	Shipping Tracking	We will notify you by email with tracking number once order is shipped. You can track your order using the “Track My Order” feature.
Returning/Warranty	Returning	Returns are normally accepted when completed within 30 days from date of shipment, please contact customer service for a return authorization. Parts should be unused and in original packaging. Customer has to take charge for the shipping
	Warranty	All Elecbee purchases come with a 30-day money-back return policy, plus 1-year Elecbee warranty against any manufacturing defects.
		This warranty shall not apply to any item where defects have been caused by improper customer assembly failure by customer to follow instructions, product modification, negligent or improper operation
Ordering	How to Buy	Elecbee accepts online orders.
		Add to cart > Check out > Submit order > Complete payment > Delivery
	Payment	PayPal, Credit Card includes Visa, Master, American Express, Bank transfer.

Description

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.

Package includes:

3 x MQ-4B Sensor Gas Sensor CO CO2 Smoke Methane Sensor

3pcs-MQ-4B-Sensor-Gas-Sensor-CO-CO2-Smoke-Methane-Sensor-Detecting-MQ-Sensor-DIY-for-Safety-Detectio-1682602