Fut-electronic Tech Co., Limited  

Product Name: Gas Detection Module Mq-2 Mq-3 Mq-4 Mq-5 Mq-6 Mq-7 Mq-8 Mq-9 Mq-135 Each of Them 1PCS Total 9PCS Sensor for Kit Model NO.: FUT3338-2 Sensitivity: High Trademark: FUT Transport Package: ESD Antistatic Bag Specification: 8g Origin: China Product Description 100% band new and high qualityVCC: positive (5 v)GND: connect power negativeDO: TTL switch signal outputAO: analog signal outputSpecial remind: The sensor eed to preheat about 20s after the power supply, and the measured data of sensor will be stable.The sensor fever belongs to the normal phenomenon,because its internal have heating wire, if too hot is not normal.Packing inclued : total 9 pcsMQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135After service1,Shipping Warranty:We usually ship goods By DHL, UPS, EMS, Singpost airmail, and HongKong Airmail.DHL: 3-5 daysUPS: 5-7 daysEMS: 10-15 working daysChinapost/HongKong Airmail: 7- 25 working days. At most 45 days.If you have not received the goods during the normal time, please contact us for checkingthepackage statustimely online or by email.2,Product replacement and warranty Ifyou have any prodcut quality problem, you can send it back to us with the original condition,we will repair or exchange new one for you. If you have any using problem of the products which buy from FUT, please feedback to us first, and we will discuss the issue with you. Via our technical support, we can dig out your using problem via our technical support in most of cases. Lost Products: If products get lost in delivery, or you still do not get your item for a long time, please contact our customer service timely. We will deal with this ASAP. Please do not deal with it all by yourself, we want you communicate with us. Usually, we will provide tracking number and tracking link timely. If products get lost on the way and we get confirm from couriers, we will arrange redelivery for your products. If you want ship it through express, then you need to pay express shipping fee. 3,Technical Service:. If you have technical problem with the product you received from us, please contact us online or by email: Contact usRemote help service: If your problem needs to be solved by remote help by our engineer, please download the teamviewer software, install it on your computer, then give us ID and password for remote help.