CryoMonitor 1000 is real-time temperature display. Even liquid level sensor fail, user could know low LN2 level from temperature increase. When temperature exceed the setting temperature, it will alarm. Smart Cap realizes both liquid nitrogen level and temperature monitor on a compact designed plug. This is a real user-friendly device, which doesn't need to connect any extra wires, sensors, and even power supply. The whole system is built based on unique INNOVA ultra-low power consumption technology. INNOVA provide optional relay to connect Wi-Fi for data transfer. User can check temperature and liquid level on line.