Liquid gas level measuring system

A liquid gas level measuring system for use in a liquid gas tank and designed to cooperate with a float level gauge head mounted on the gas tank and made of magnetically inert material, the system comprising a dial magnet, a Hall effect sensor, a battery, a radio module with an antenna, characterised in that the system comprises:

• a dial module 1 attachable to the float level gauge head and comprising:
• a dial module body 101 having its bottom face shaped so as to be mounted in the level gauge head,
• an indicating rotary element arranged in the dial module body 101 and serving for visual indication of liquid gas level in the tank,
• at least one dial magnet 103 arranged below the indicating rotary element, whereby said at least dial magnet 103 and the indicating rotary element are arranged such that during rotation about the common vertical rotation axis the rotation angle of said at least one dial magnet 103 corresponds to the rotation angle of the indicating rotary element,
• a tank volume scale 108 circular in shape and adjusted to cooperate with the indicating rotary element so as to indicate percentage of the tank volume occupied by the liquid gas,
• and a dial module lid 105 provided on its top face with at least one connection element, whereby at least part of the dial module lid 105 peripheral area is made of a transparent material, and
• a sensor module 2 releasably connected to the dial module 1 and comprising:
• a housing 201 provided with at least one connection element corresponding to the connection element of the dial module lid 105 and adapted to form a releasable connection with the connection element of the dial module lid 105,
• an electronic module 203 comprising the Hall effect sensor and the radio module,
• a battery 204 connected to the electronic module 203,
• an antenna 205 connected to the radio module.