Mq-135 Mq135 Air Quality Sensor Hazardous Gas Detection Module For Arduino New

US $900

CN, China
Oct 19th

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MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module For Arduino New Product description: A hazardous gas detection apparatus for the family, the environment. Suitable for ammonia, aromatic compounds, sulfur, benzene vapor, smoke and other gases harmful gas detection. Main chip: LM393,MQ-135 gas sensor Operating voltage: DC 5V With signal output indicator instructions. Dual signal output (analog output, and TTL level output). TTL output valid signal is low level, (output low signal light, which can be accessed microcontroller IO port). Analog output with increasing concentration, the higher the concentration, the higher the voltage. with high sensitivity and good selectivity for Sulfide, benzene Department of steam, smoke and other harmful gases. Has a long service life and reliable stability. Rapid response and recovery characteristics. Size:36mm X24mm X25mm(L * W * H) Gas-sensitive element test concentration range: 10 to 1000ppm Note This module is the MQ-135 air quality sensor, please use before preheating 20S or so In normal circumstances, AOUT side of the voltage in the 1V or so When the sensor detects the measured gas, the voltage is increased by 0.1V, the actual measured concentration of gas increased by 20ppm Package Included: 1PCS * MQ135 MQ-135 Air Quality Hazardous Gas Detection Module Payment: 1. We accept payment via PAYPAL ONLY. 2. Payment must be made within 4 days of auction closing. 3. TOTAL AMOUNT DUE includes the final auction price plus S&H(Shipping and Handling). 4. S&H will be determined based upon the SHIP TO address. 5. Please list your special requests (color, packages, value of declaration, etc.) in the PAYPAL NOTES SECTION when you make payment. Shipping: 1. WORLDWIDE SHIPPING. 2. Orders processed within 24-48 hours of payment verification. 3. We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address. 4. The images shown are not the actual item and are for your reference only. 5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! 7 . Shipping Time: (Other countries or remote areas may take longer.) Rate(item arrived) Delivery Time Business days(not include holiday) 5-7 8-11 12-14 15-19 20-22 >22 Business days + weekend 5-9 10-15 16-20 21-25 26-30 >31 United States 4.9% 40.9% 28.6% 9.9% 5.2% Resend or refund United Kingdom 9.6% 60.1% 20.5% 3.1% 4.9% Resend or refund Australia 20.9% 48.2% 13.8% 6.9% 8.4% Resend or refund France 9.8% 27.8% 42.6% 9.7% 7.9% Resend or refund Germany 10.99% 21.9% 29.5% 19.8% 16.1% Resend or refund Canada 0.0% 46.71% 30.6% 17.5% 4.7% Resend or refund Spain 3.3% 24.8% 46.3% 12.9% 11.5% Resend or refund Communication: 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. It is impossible to address issues if we do not know about them! Contact us We try our best to offer all of our clients shopping experience. Any bad feedback or low DSR ratings can not solve problems, so if there are any issues with the purchase, please contact us before any bad ratings. We will be happy to assist you. Just send us a message, and we will answer within one day for the time difference. Your positive feedback and all five star DSR ratings will encourage us to service you better. On Oct-19-16 at 11:34:15 PDT, seller added the following information: