feature: Used to sense the liquid level in the tank. Light weight simple working principle and high reliability. The switch can activate pumps indicators alarms or other devices. This float switch is a liquid level controller with simple structure and easy installation. It is widely used in electronics electrical chemical water treatment drainage and other fields. The versatility of this vertically mounted sensor means that it can be mounted on the top or bottom of the tank depending on whether you want to detect the rise or fall of water. feature: Color: silver Material: Stainless steel Maximum. Contact rating: 10W / 50W Maximum. Switching voltage: 240V AC Maximum. Breakdown voltage: 220V DC Maximum. Switching current: 0.5A Maximum. Carrying current: 1A Maximum. Contact resistance: 100mΩ Working pressure: 10kg/cm Maximum. Pressure: 0.2Mpa Applicable ratio: 0.75 Working temperature: -10 ~ +120℃ Switch operation: reversible Wire: PTFE high temperature wire Installation method: vertical installation Thread diameter: 10 mm/0.39 inch Size: 250mm 300mm 400mm 500mm Package Included: 1 x float switch notes: 1. Due to manual measurement please allow an error of 1-3mm. 2. Due to the difference of different monitors the picture may not reflect the actual color of the item. Thanks!