Description SmartCap intelligent cork, with liquid nitrogen tank level monitoring and temperature monitoring functions. Key Features Double independent measurement system for high accuracy liquid level measurement and temperature measurement. Real-time display of liquid level and temperature. Adopt internal imported special-shaped nickel battery for power supply, with long battery life. Specifications Model Application It is suitable for 50mm/80mm/125mm/216mm caliber liquid nitrogen tank products, but also compatible with other similar liquid nitrogen tank on the market (only internal height and caliber can be configured).