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FS-IR1902D NPN-NC IP68 Wide-Voltage DC 5-24V Fast-Response Digital Liquid Level Indicator

US$4.50 Min. Order: 1 piece

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7ML50331BA101B Ultrasonic Level Gauge for Landscape Lakes and Ponds with Unattended Monitoring and Low Power Consumption

US$828-858 Min. Order: 1 piece

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Stainless Steel and Plastic Water Level Alarm Switch and Water Tank Level Sensor with High Accuracy, DC 200V

US$5 Min. Order: 200 pieces

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Water Tank and Fish Tank Plastic Level Alarm Device with Full-Level Float Switch, Liquid Level Sensor and Side Mounting

US$1.43 Min. Order: 1 piece

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Non-Contact Water Tank Liquid Level Detection Sensor with Shortage and Full Water Warning

US$4.71-5.60 Min. Order: 1 piece

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SY-YW-10 Ultrasonic Water Level Sensor for Lake Level Monitoring Stations

US$828-858 Min. Order: 1 piece

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HS-AW-L10RCC2XXXB00 Ultrasonic Liquid Level Sensor for Highway Underpass Monitoring with Over-Limit Alarm

US$828-858 Min. Order: 1 piece

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2pcs Stainless Steel Water Level Sensor Switch with Plastic Ball Float Controller for Fish Tank and Sump Filter

US$3.20-4.50 Min. Order: 10 pieces

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IP68 Ultrasonic Level Sensor and Transmitter, 50m Range, 0.2% Accuracy, ABS

US$123 Min. Order: 1 piece

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Large Floating Pond Fountain Aerator with Battery, Solar Powered Diaphragm Air Pump

US$300-3,000 Min. Order: 1 unit

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WiFi Ultrasonic Liquid Level Sensor for Water Tank Monitoring with Alarm and APP Remote Control

US$23 Min. Order: 1 piece

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201W IP66 Tank Level Detection Alarm System Controller with Smartphone Monitoring

US$22.80 Min. Order: 5 pieces

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Tuya Smart Wireless Liquid Level Sensor and Transmitter for Water and Oil Tanks with Remote APP Monitoring

US$14-23 Min. Order: 5 pieces

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APP Ultrasonic Water Tank Liquid Level Sensor and Automatic Pump Controller with Alarm Monitor

US$19.80-24.80 Min. Order: 5 pieces

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Water Level Controller Float Switch for Industrial Pumps

US$26.40 Min. Order: 1 piece

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SW-01 Aquarium and Fish Tank Water Level Alarm

US$3.50 Min. Order: 10 pieces

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Intelligent Liquid Level and Water Immersion Leakage Detection Alarm Sensor

US$52-55 Min. Order: 1 set

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TLC2508 Ultrasonic Tank Level Sensor Battery Powered Smart Level Gauge for Tanks, Ponds, Reservoirs and IoT Water Management

US$28 Min. Order: 1 piece

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Liquid Water Tank Level Monitor Meter Water Level Transducer for Groundwater Alarm

US$18.50-21.50 Min. Order: 100 pieces

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High Precision Float Level Alarm with Backup Battery, WiFi App Notification and Water Level Sensor Detector

US$28.22-32.44 Min. Order: 1 piece

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RS485 Electronic Water Gauge Liquid Level Sensor for Tailing Pond Water Level Monitoring

US$99-225 Min. Order: 1 piece

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Waterproof IP67 Photoelectric Liquid Level Probe with Digital Output and Magnetic Mounting for Fish Tanks

US$4.10 Min. Order: 1 piece

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WiFi Water Liquid Level Monitoring Controller Alarm System with 120 dB Sound and 5 m Water Level Sensor

US$80 Min. Order: 1 piece

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80 GHz FMCW Non-Contact Radar Water Level Transmitter RS485 IP68 with 6 kV Lightning Protection for Rivers and Reservoirs

US$180-625 Min. Order: 1 piece