M12 Thread Arduino Water Level Sensor

1) Simple structure, M12 thread size.
2) Excellent quality, the using life is up to 50,000h.
3) Cost-efficient.
4) High precision.
5) Waterproof standard IP66.
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Product Details


The Model FS-IR1901D-PC-PH2.0 M12 Thread Arduino Water Level Sensor has been designed for simple measuring requirements in level measurement. The product contains a near-infrared light-emitting diode and photosensitive receiver. The light from the LED is directed into a prism on top of the sensor. When liquid immerses the lens of the photoelectric level switch, the light is refracted into the liquid, so that the receiver cannot receive or can receive only a small amount of light. If there is no liquid, the light emitted by the light-emitting diode is directly reflected from the lens back to the receiver, thereby judging the change of the liquid level, and activating an external alarm or control circuit.

FS-IR1901D-PC-PH2.0 offers excellent quality, and it's cost-efficient and reliable. It has different types of output signal alternative including analog signal and TTL signal. The accuracy is up to ±1 mm. 




1. Cost-efficient

2. Reliable and stable

3. High accuracy up to ±1 mm

4. Various kinds of output signal: analog signal, TTL signal

5. Easy installation, M12 thread.






1. Level measurement in vessel and storage.
2. Level measurement in cistern and coolant reservoir.

Our service

1, MOQ: One sample order is acceptable.
2, Price term : EXW, FOB Shenzhen.
3, Payment: Western union, Paypal for samples order; T/T 30% deposit, 70% T/T before shipment for order.
4, Packing: Standard export packing, including instructions and certificate.
5, Leading time : 5-10 days for samples, 10-30 days for mass production.
6, OEM/ODM is available.
7, Shipment: Express (FedEx, DHL, UPS & TNT) or forwarder.
8, Warranty: One year free repair for quality warranty, and lifetime free online after-service.

Packing & Delivery



1-Q: How about the payment?

A: T / T,Paypal,WU,Credit Assurance,etc are accepted. You will receive full protection of your order, please click on trade guarantee for more details.

2-Q: Can I visit your factory?

A: Yes, of course. We have our factory and we also have successively established long-term strategic cooperative relations with a number of international and domestic well-known brands in the field of automation instruments and meters, and obtained their qualification of technical service center or northwest and agency in western China. You can fly to Shenzhen airport, we will arrange to pick you up. Warmly welcome to visit us.

3-Q: What advantages do you have?

● We are a professional provider of electrical accessories services, and have more than 16 years experience in this field.

● We have lots of resources and channels.

● Good quality and competitive price.

● Professional service and after-sales service.

● Sincere cooperation attitude.

4-Q: Can i get the samples?

A: We could offer the sample if we have the stock,and the freight and taxes cost will stand by your side.

5-Q: How does your factory do regarding quality control?

A: Quality of the product is priority, we always attach great importance to quality controlling from the very beginning, our factory have a strict quality control system.

6-Q: Can I customize the products?

A: Guarantee: 2 years.

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