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                                 High resolution 3 ½ digit LCD 
Standard analog output ranges: 0-1%, 0-5%, 0-10% and 0-25% 
Optional analog output ranges: 0-50%, or 0-95% 
On board data logger 
Remarkably stable 10-year life zirconium oxide sensor 
Flow control valve and flow meter integrated into advanced technology cellblock 
The Model 111 has been designed for positive pressure applications 
The Model 111P and 111B are designed for negative pressure to 5psig. applications and are outfitted with long life sample pumps 
All have Rechargeable NiCad batteries 
The Model 111 and Model 111P are for use in General Purpose Area Classifications 
The Model 111B has been designed to meet Class1, Div. 2, Groups C,D Area Classifications 
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