What this does and why you need it Reliable float switch that monitors liquid level in tanks, pools and reservoirs and controls pumps, alarms and other connected devices. Helps prevent overflow and dry running by activating at preset levels for automatic on/off control. Compact, simple and tool to configure and install. Key benefits Prevents damage and downtime by stopping pumps when tanks are empty and triggering alarms or shutoffs at levels. Flexible installation: works with many control systems and devices that accept a 100V DC/AC switching signal. Easy to change operating mode on site: reverse the float to select normally open (NO) or normally closed (NC) operation without tools. Main features and specifications Function: floattype water level sensor / switch for liquid level detection. Electrical: maximum rating 10W; switching voltage 100V DC/AC; maximum carrying current 3A. Materials and build: PP float for corrosion resistance. Mechanical: float thread diameter 9*5mm; compact body size 23*3 x 57*7mm. Cable: 36 cm cable length for straightforward routing and connection. Operating temperature: 10 to +85 Celsius. Compatibility and performance Designed to interface with pumps, alarms, relays and monitoring circuits within the stated voltage and current limits. Small form factor fits into tight spaces and standard mount points using the specified thread size. Durable PP float resists typical water chemistry found in tanks and pools. Typical applications Domestic and commercial water tanks: automatic refill control and overflow protection for rooftop or underground tanks. Pump protection: prevent dry running of sump and transfer pumps by cutting power when liquid falls below the set point. Pools, fountains and reservoirs: trigger alarms or secondary systems when levels reach preset thresholds. Installation and setup tips Install using the specified float thread (9*5mm) and route the 36 cm cable to your control device. To change from normally open to normally closed, simply reverse the float; no tools required. Ensure connected devices and wiring stay within the maximum rating of 10W, switching voltage 100V DC/AC and carrying current 3A. This float switch provides a compact, simple and reliable way to control liquid levels for pumps, alarms and other devices while offering easy configuration and durable PP construction.