The Supercool Cooltest A/C Diagnostic Tool is a 12V digital fault-detector for the automotive A/C system. This easy-to-use tool does not require extensive training and saves time in troubleshooting vehicle A/C systems. The Cooltest detects and digitally displays both low- and high-pressure readings and the following nine faults: gas leakage, low compression, no compression, expansion valve choked, gas overcharge, a dirty condenser panel, receiver drier choked, electric fan not working and low pressure choked. The built-in hook allows for convenient hanging under the vehicle hood.
