Read Before You Buy it Dear Customer,Our Freeshipping is “Seller’s Shipping Method”,Tracking number will be like “11457888274”or ” UA718888210YP” ,this tracking number only can be tracked before it arrive the airport , and have no tracking information in your country.Do not choose this shipping method if you don’t like the regular mail. Please choose “China Post Air mail” if you need international tracking number like this “RI254747030CN”,This number can provide a full tracking information. We provide Free China Post Air mail shipping method if your order price over $30.
1.PCB Board Dimension:3.2cmX1.4cm
3.The output in the form: digital switching outputs (0 and 1) and analog AO voltage output
4.The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA
5.The sensor USES the high quality FR – 04 double material, large area of 5.5 * 4.0CM, treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance
6.A fixed bolt hole for easy installation
7.Sensitivity can be adjusted via potentiometer
8.Board with positioning holes to facilitate installation
9.Wide voltage LM393 comparator
How to use
1.Connected to 5V power supply, the power indicator light, sensor board is not water droplets, DO output is high, the switch lights off, dropping on a drop of water, DO output is low, the indicator light switch,
2.Brush off the the above water droplets, has returned to output high state.
3.AO analog output can be connected to the microcontroller AD port to detect the size of the drops in the above rainfall.
4.DO TTL digital outputs can also be connected to the microcontroller detects whether there is rain.
1.VCC:positive power supply (3-5V)
2.GND:negative power supply
3.DO: TTL switching signal output
4.AO: Analog signal output
USD 1.98/pieceUSD 2.99/pieceUSD 3.20/pieceUSD 0.99/pieceUSD 2.98/pieceUSD 0.99/pieceUSD 0.99/pieceUSD 0.99/lot
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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).|
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