Apparatus and system for air conditioning output measurement and coolant servicing

An apparatus for servicing a vehicle coolant system, the apparatus comprising:

• a temperature sensor for measuring a temperature of air output at an air conditioning vent inside a vehicle;
• and
• a coolant delivery device comprising:
• a housing, having a first port that includes a connector configured for connection to a coolant source, and a second port having tubing configured to provide fluid communication between the housing and a coolant port of the vehicle coolant system;
• a display, mounted on the housing, the display being in communication with the temperature sensor and providing the user with an indication of the sufficiency of refrigerant in the vehicle coolant system based on the temperature measured by the temperature sensor;
• and
• an actuator comprising an actuation lever positioned on the housing opposite the display, the actuation lever comprising a finger-receiving ring, the actuator being configured to allow a user to actuate delivery of coolant from the coolant source to the coolant port by the user actuating the actuation lever based on the information provided by the display;
• wherein the temperature sensor is adapted for use inside the vehicle while the coolant delivery device is adapted for concurrent use outside the vehicle in fluid communication with the vehicle coolant system.