BL-YW-SR-CL-71 Contactable Capacitive Liquid Level Sensor
BL-YW-SR-CL-71
A contactable capacitive level sensor is a sensor used to measure the level of liquids. It is based on the capacitance principle and determines the horizontal position of the liquid by sensing the capacitance change between the liquid and the sensor electrode. This type of sensor is widely used in industry, agriculture, environmental monitoring and other fields to measure liquid levels and monitor liquid flow or storage. Since they come in direct contact with liquids, they are suitable for a wide range of liquid types.
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A contactable capacitive level sensor is a sensor used to measure the level of liquids. It is based on the capacitance principle and determines the horizontal position of the liquid by sensing the capacitance change between the liquid and the sensor electrode. This type of sensor is widely used in industry, agriculture, environmental monitoring and other fields to measure liquid levels and monitor liquid flow or storage. Since they come in direct contact with liquids, they are suitable for a wide range of liquid types.
- Type: Contactable liquid level sensor
- Place of Origin:Guangdong, China
- Brand Name:Gbeelee
- Model Number:BL-YW-SR-CL-71
- Max. Current:<5mA
- Max. Voltage:3.3-5.0V
- working voltage:3.3-5.0V
- Water output voltage:<0.3V
- Waterless output voltage:>4.6V
- Working current:<3mA
- working temperature:-20℃~120℃
- Storage temperature:-40℃~120℃
- working life:50000H
- Certification:ROHS


Connect the sensor as described above, and the signal end will output a voltage signal that is consistent with the water level condition. This signal is used as a liquid level control signal to connect to the MCU (microcontroller) I/0 port. When the liquid level exceeds the critical liquid level and submerges the sensor body, the signal output is low voltage. When the liquid level is below the critical liquid level and the sensor body is exposed, the signal output is high voltage.





parameter | Symbol | Conditions | Typ |
working voltage | VDD | 3.3-5.0V | |
Water output voltage | V01 | VDD=5.0V,Ta=25℃ | <0.3V |
Waterless output voltage | V02 | VDD=5.0V,Ta=25℃ | >4.6V |
Working current | IOP | VDD=5.0V,Ta=25℃ | <3mA |
working temperature | Topr | -20℃~120℃ | |
Storage temperature | Tstg | -40℃~120℃ | |
working life | WL | 30000H |







Q1:How can I get more information about your product?
A1:Please send the inquiry for us, and then we can send the detail including spec and offer to you.
Q2:Do you accept OEM or ODM?
A2:Yes,But we have quantity requirements.
Q3:What is the payment way of your company?
A3:100% T/T in advance before shipping,(We can accept payment such as T/T, Paypal,Western Union,Alibaba trade assurance,Etc. )
Q4:What is the shipping way?
A4: Usually by air (DHL,UPS,TNT, FedEx etc).
Q5:How long for manufacturing once we place order?
A5: 10000pcs within 5-10days
Q6:How long for samples order?
A6: Usually within 24hour
A1:Please send the inquiry for us, and then we can send the detail including spec and offer to you.
Q2:Do you accept OEM or ODM?
A2:Yes,But we have quantity requirements.
Q3:What is the payment way of your company?
A3:100% T/T in advance before shipping,(We can accept payment such as T/T, Paypal,Western Union,Alibaba trade assurance,Etc. )
Q4:What is the shipping way?
A4: Usually by air (DHL,UPS,TNT, FedEx etc).
Q5:How long for manufacturing once we place order?
A5: 10000pcs within 5-10days
Q6:How long for samples order?
A6: Usually within 24hour
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