25mm White PP Mini Tank Pool Water Level Liquid Sensor Vertical Floating Ball Switch Compact, reliable float switch for simple water level detection and control. Designed as a vertical floating ball switch made from white polypropylene for corrosion resistance and long service life in tank and pool applications. Key benefits Spacesaving size: 25 mm diameter mini design fits small openings and tight installations where larger switches will not. Simple on/off control: Mechanical floating ball actuates a switch as the liquid level rises or falls, making it easy to trigger pumps, alarms, or control circuits. Durable material: White polypropylene body and float resist common pool and tank water conditions without adding coatings or complex maintenance. Versatile mounting: Vertical orientation allows direct installation for reliable level sensing in upright tanks, sumps, or pool equipment. Lowmaintenance operation: Mechanical design avoids electronic drift and is easy to inspect and if needed. Key attributes Function: Water level and liquid level sensing using a vertical floating ball switch that closes or opens a circuit based on float position. Compatibility: Suited for small tanks, pools, sumps, and other liquid containers that accept a 25 mm diameter float switch. Works with basic pump controllers, relay modules, and alarm systems that accept a mechanical switch input. Size: Mini 25 mm diameter for compact installations. Material: White polypropylene (PP) for corrosion resistance and durability in freshwater and typical pool environments. Performance: Reliable mechanical switching for on/off level control with straightforward installation and inspection. Practical applications Small pool pump control: Automatically start or stop a circulation or up pump to maintain a target water level in a small pool or fountain reservoir. Tank level alarm: Trigger an alarm or indicator when liquid reaches a or low point in a storage tank, sump, or cistern. Aquarium or equipment reservoir monitoring: Provide a simple float switch input to a controller or relay to prevent dryrun conditions for pumps or to maintain refill cycles. What you get A mini vertical floating ball switch with 25 mm diameter in white polypropylene suitable for tank and pool water level control. A compact, mechanical sensing solution that integrates with common basic pump and alarm setups. Installation and handling notes Install in a vertical orientation so the float can move . Verify compatibility with your control circuit or relay before connecting. Inspect periodically for debris buildup and rinse if to maintain smooth float action. This compact float switch offers a straightforward, durable option for basic water level detection and on/off control in tanks, pools, and other small liquid containment systems.