With signal output instructions
TTL output signal is low level
Analog 0 ~ 5V voltage output, the higher the concentration, the higher the voltage
Color is show as pictures.
PLS NOTE that due to lighting effects, monitor’s brightness / contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item!
Air Quality Sensor Module
Size: 32mm X22mm X27mm
Main chip: MQ-135
Working voltage: DC 5V
1 x Air Quality Sensor Module
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|Shipping Company||Shipping Cost||Estimated Delivery Time|
|3 - 7 days|
|3 - 7 days|
|5 - 14 days|
|Post Air Mail||Free Shipping||15 - 45 days|
|Return Policy||If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.
N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
|Seller Service||On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).|