Mq-3 Semiconductor Sensor For Alcohol Gas Smoke Sensor Ethanol Vapor Detection

US $300

Shenzhen city, China
Jun 21st

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Description MQ-3 Semiconductor Sensor for Alcohol Gas Smoke sensor Ethanol vapor detection Specification: Sensitive material of MQ3 gas sensor is SnO2, which with lower conductivity in clean air. When the target alcohol gas exist, The sensor?s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.MQ3 gas sensor has high sensitity to Alcohol, and has good resistance to disturb of gasoline, smoke and vapor. The sensor could be used to detect alcohol with different concentration, it is with low cost and suitable for different application. Character: 1. Good sensitivity to alcohol gas 2. Long life and low cost 3. Simple drive circuit Application: 1. Vehicel alcohol detector 2. Portable alcohol detector Technical Data: Model No. MQ-3 Sensor Type Semiconductor Standard Encapsulation Bakelite (Black Bakelite) Detection Gas Alcohol gas Concentration 0.04-4mg/l alcohol Circuit Loop Voltage Vc ?24V DC Heater Voltage VH 5.0V±0.2V AC or DC Load Resistance RL Adjustable Character Heater Resistance RH 31?±3??Room Tem.? Heater consumption PH ?900mW Sensing Resistance Rs 2K?-20K?(in 0.4mg/l alcohol ) Sensitivity S Rs(in air)/Rs(0.4mg/L Alcohol)?5 Slope ? ?0.6(R300ppm/R100ppm Alcohol) Condition Tem. Humidity 20?±2??65%±5%RH Standard test circuit Vc:5.0V±0.1V? VH: 5.0V±0.1V Preheat time Over 48 hours Package Include: MQ-3 Semiconductor Sensor x 1 Recommended Products Check out my other items Payment We accept Paypal only, It is fast, Easy and Safe. Payment must be completed within 7 days. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Shipping We Ship to Worldwide. Orders processed within 24-48 hours of payment verification. We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address. Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delivered) Items are shipped via China Post & Hong Kong Post & Singapore Post Air Mail. Shipping...Method Destination Shipping Time Postage China Post / Hong Kong Post/ Singapore Post Airmail Australia 7-20 days Free shipping (fit < 2kg) United Kingdom 7-20 days Canada 10-20 Business days Vietnam, Maldives,New Zealand, Japan, Korea South, Austria, Germany, Netherland, France, Finland, Thailand, Denmark,Greece,Switzerland, Portugal, Greece, Belgium,Ireland, Singapore, Norway 15- 30 Business days South Africa, Bulgaria, Belarus, Cyprus, Croatia, Latvia, Monaco, Moldova, Macedonia, Montenegro, Poland, Romania, Serbia, Slovakia, Slovenia, Ukraine, Brunei Indonesia, Cambodia, Malaysia, Philippines, Vietnam, Maldives, 15- 35 Business days Italy, Brazil, Russia, Israel & Small countries 25-45 Business days EUB USA 7-12 days ----- EMS Most of Countries 5-15 days Contact US DHL / Fedex Australia, France, UK, Germany, USA, ect. 4-5 days Contact US Warranty and Guarantee All the product be test before shipping. Buy with confidence! If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it. Not accept returning of electronic components. Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer. We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. Contact Us We strive to provide you with the best service, We will reply your question within 24 hours. Our goal is customer satisfaction! Our Working-time From 8:30 AM to 21:30 PM. you can check our working time from the World-time table. On Sep-30-14 at 23:50:41 PDT, seller added the following information: