Refrigerant Identifier - Cooltech ROB16900

Signals "Go" only if refrigerant is 98% pure.
"Go" and "No Go" lights clearly show if refrigerant is pure enough to be recovered or charged. Dual power source gives you service flexibility.
Hydrocarbon alarm protects the user by signalling if potentially dangerous butane, propane, etc., is present in the refrigerant.
Displays percent of air in the A/C system or tank.
For R-12 and R-134A
Fast and Accurate - Displays test results in less than a minute and passes the refrigerant only if it's 98% pure. To assure consistent, rapid results, the units are not pressure/temperature dependent.
Reliable Technology - The instruments use dependable infrared technology developed by Neutronics, Inc., to determine if the refrigerant is an acceptable type and is pure enough to be used.
Unique Case Design - Puts all the components up front where you can see them at a glance, including the filter. Contoured case can be held in either hand and rubber feet protect the vehicle's finish.
Specifications:
Power Source: 12V DC or 115V 60 Hz AC (adapter included)
Dimensions: 11"L x 9"W x 4-1/2"D (27.94cm x 22.86 cm x 11.43cm)
Weight: 1.75lbs (740g)