MQ137 Gas Sensor Module MQ-137 Ammonia Sensor Module NH3 Sensor Module

Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality. 

Our main payment methods include Paypal, Credit Cards, Debit Cards,  Bank Transfer, and more to discover. Please choose the payment methods in your favor.

After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.

1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.

2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;

3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.