Feature: 1. Non Contact Type: Non contact liquid level sensor is suitable to the outer wall of the non metallic container which is not in direct contact with the liquid. 2. Great Stability: The water level sensor will not be corroded by strong acid, strong alkali and other corrosive liquids, nor will it be affected by scale or other debris. 3. High Accuracy: The sensor detection is accurate and stable, can detect the level of boiling water, and can also be used for water level gauge. 4. Anti Interference: With strong anti interference ability, free from external electromagnetic interference, special treatment for power frequency interference and common mode interference. 5. Wide Usage: Feature high and low liquid level output mode, suitable for connecting various circuits and product applications, compatible with 5V power adapter on the market. Specification: Item Type: Liquid Level Sensor Material: PC VO Fireproof Material External Input Voltage (Vin): DC5V Output Mode: NPN Output Mode Current Consumption: 5mA±2mA Response Time: 500mS Working Ambient Temperature: -20℃ to 80℃ Working Environment Humidity: 5% to 100% Liquid Level Accuracy: ±1.5mm Wire Length: Approx. 300mm/11.8in (±10mm/0.4in) Terminal Definition: XH2.54 3P Terminal Brown (Positive Pole of Power Supply), Black (Signal Output), Blue (GND) Waterproof Performance: IP67 Safety Standard Certification: CE Environmental Protection Certification: ROHS 2.0 Liquid Level Sensor (Probe): Installed at the upper and lower parts of the outer wall of the measured container (high and low level of liquid level). The non metallic container can detect the liquid level of various toxic substances, strong acids, strong alkalis and various liquids in the high pressure closed container without opening holes, simple installation and affecting production. The measured liquid is required to conduct electricity, and the contact surface is widely used as nonmetal.. Package List: 1 x Liquid Level Sensor