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💧 Stay ahead of the curve with pinpoint water sensing—because your smart garden deserves the best!
The CQRobot Contact Water/Liquid Level Sensor is a compact, photoelectric sensor designed for precise, non-contact water level detection with ±0.5mm accuracy. Operating at ultra-low power (12mA) and supporting both 3.3V and 5V logic levels, it offers flexible mounting orientations and robust resistance to corrosion, heat (up to 105°C), and chemicals. Compatible with Raspberry Pi and Arduino platforms, it’s ideal for smart irrigation, aquariums, and agricultural automation, delivering reliable, maintenance-free liquid level monitoring.






| ASIN | B07ZMGW3QJ |
| Best Sellers Rank | 30,641 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 25 in Liquid Level Sensors |
| Brand | CQRobot |
| Country Of Origin | China |
| Current Rating | 12 Milliamps |
| Current rating | 12 Milliamps |
| Customer Reviews | 4.5 out of 5 stars 392 Reviews |
| Item Dimensions | 21 x 3.6 x 7.1 centimetres |
| Item Weight | 0.05 Kilograms |
| Item dimensions L x W x H | 21 x 3.6 x 7.1 centimetres |
| Item weight | 0.05 Kilograms |
| Manufacturer | CQRobot |
| Material | silicone pc |
| Maximum Supply Voltage | 5 Volts (DC) |
| Measurement Accuracy | ±0.5mm |
| Model Number | CQRSENYW002 |
| Mounting Type | Wall Mount |
| Output Type | Digital |
| Sensing Distance | 50 Centimetres |
| Specific Uses For Product | Automatic Irrigation Systems, Aquariums, Plants, Garden, Agriculture, Alarm Function |
| Style | Single Point Contact Type |
| Style Name | Single Point Contact Type |
| Upper Temperature Rating | 105 Degrees Celsius |
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