1.5 pieces waterproof temperature sensors in one set. Colour: mainly black. Material: durable stainless steel. Each sensor has approx. 100 cm cable length, stainless steel tube size approx 6 x 50 mm (about 0.24 inch x 1.97 inch). Power supply range: 3.0 V - 5.5 V. It is a chip, temperature sensor with 3 wires. Benefits - Waterproof design suitable for liquids and humid environments, reducing risk of sensor failure. - Durable stainless steel construction for long life and reliable thermal response. - Long, flexible 100 cm cable enables easy routing in tight spaces and complex installations. - Three-wire sensor chip supports stable readings and straightforward integration with microcontrollers. Use scenarios - Home brewing or fermentation temperature control to maintain consistent results. - Aquarium or terrarium temperature monitoring for stable habitat conditions. - Electronics projects and microcontroller setups that require reliable ambient or process temperature data.