Product Comparison

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Combining Simple Operation With Superior Accuracy:

Whether it’s the fully-automatic 34988, 34788NI or the semi-automatic 34288, these machines will test, recover, and recharge R-134a automotive AC systems quickly and accurately.






Fully-Automatic Function: Program to recover, vacuum, leak test and charge without operating panel valves. 


Automatic Dye Inject: Gives the user the ability to use the machine to inject UV dye into a vehicle’s A/C system. 


Automatic Oil Drain: A display reminds you to empty the graduated container to show the amount of oil to replace. 


Oil Inject: Automatically inject oil back into the vehicle A/C systems. 


Refrigerant & Oil Database: For North American market vehicles 1994 - 2007 (updates available mid-2008). 


A/C system flush: Flushes a vehicle’s A/C system with refrigerant eliminating any residual oil or other liquid. (Flushing adapters - not included) 


Save & Print before and after service data: Allows the user to store before and after service information by vehicle and print this information to provide to a customer. 


Indicator light and notification alarm: Notifies the user when service is complete, or if a problem has occurred. 


Vacuum Leak Test: Monitors level after evacuation, informs of possible leak. 


Automatic Air Purge: Eliminates damaging air without monitoring gauges or opening valves. 


Automatic Refrigerant Refill: Maintains a user-selectable amount of refrigerant in an internal vessel and signals with it’s time to change supply tank, no monitoring required. 


Vacuum Feature: Defaults to 15 mins, programmable up to 99 mins. “Remaining time” is displayed. 


Display: Multilingual


Refrigerant Charging: Select a charge mode from high or low side, or use both sides. 


Refrigerant Management System: Displays refrigerant use and monitors remaining filter life. Prompts appear when 1/3 of filter life remains. 


Electric Vehicle: Capable of servicing high voltage electric compressor A/C systems. 




Refrigerant Identifier