PP Plastic Duckbill Float Switch water level sensor M12 0~110V -20~60℃ (Type-D)

Description

The PP Plastic Duckbill Float Switch (Type-D) is a compact, side-mounted liquid level sensor designed for reliable water level detection and control in space-constrained equipment. Its “duckbill” float shape allows smooth pivoting movement in tight tank walls, making it ideal for applications where top mounting is not feasible, such as coffee machines, humidifiers, water dispensers, and small water tanks .

The switch operates on a simple magnetic principle: a magnet inside the float actuates a sealed reed switch as the liquid level rises or falls, producing a dry contact closure with no external power required for the sensing element. The PP (polypropylene) body provides good resistance to weak acids and alkalis, excellent electrical insulation, and low density for high buoyancy sensitivity . The Type-D variant is specifically rated for 0~110V operation with a working temperature range of -20°C to +60°C, matching the specifications you provided and common supplier listings for this model .

Critical note on specifications: Search results for this exact product category show some variation in electrical ratings across suppliers. While your title specifies 0~110V and -20~60°C, other listings for similar PP duckbill switches report 0~220V options and -10~50°C or -10~80°C ranges . Verify your specific unit’s rating before connecting to any circuit, especially if operating near the voltage or temperature limits.

Features

• Side-Mount Duckbill Design: Compact float arm pivots horizontally for installation in narrow tanks and tight spaces where vertical switches cannot fit .

• PP Corrosion-Resistant Body: Polypropylene construction suitable for water-based systems and light chemical environments; non-toxic and food-grade for potable water applications .

• Passive Magnetic Reed Operation: No power supply required for the sensing element; the internal reed switch actuates via the float magnet as liquid level changes .

• M12 Threaded Mounting: Standard M12 thread for secure side-wall installation in tanks and reservoirs.

• Type-D Voltage Rating (0~110V): Designed for low-voltage DC/AC control circuits, suitable for direct connection to PLCs, relays, and microcontroller inputs.

• Wide Application Temperature (-20~60°C): Suitable for cold water systems through to moderately warm equipment .

• Normally Open / Normally Closed Configurable: Contact state can be inverted by flipping the float orientation (verify with your specific unit) .

• Compact and Lightweight: Low mass float responds quickly to small level changes.

Technical Specifications