• Single range measurement: 0-25%,
• Optional measurement ranges available
• 0-2.5VDC analog output or optional 4-20mA. output
• Remarkably stable 10-year life zirconium oxide sensor
• Great low cost OEM solution for system integration
• General Purpose Area Classification
• Optional display/calibration module

• 0-2.5VDC or optional isolated 4-20mA analog output
• Excellent repeatability and stability
• Weather tight package
• Barbed fittings for gas connections. Optional 1/4" compression fittings or Diffusion screen
• Low cost and virtually maintenance free over its eentire life
• Requires no support or calibration gases, other than ambient air if desired
• 10 year life sensor

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

• 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%
• 0-1VDC and isolated 4-20mA. analog outputs
• Remarkably stable 10-year life zirconium oxide sensor
• 2- fully adjustable alarm relay contacts
• General Purpose Area Classification

• igh resolution 3 ½ digit single range LCD
• 10 Standard analog output ranges: 0-10ppm, 0-50ppm, 0-100ppm, 0-500ppm, 0-1000ppm, 0-.500%, 0-1%, 0-5%, 0-10% and 0-25%
• 1-5VDC and 4-20mA. analog outputs
• Patented cellblock technology. Provides 3-way selector valve: Sample/Span/Off, a flow control valve and flow meter all integral to the compact cell bloc
• 1-2 year life high-performance electrochemical sensor. Optional H2S resistant sensor eliminates the need for an H2S scrubber
• Approved by CSA International to UL and CSA standards as meeting requirements for Class I, Div. 1, Groups B,C,D with flammable gas sample

• High-resolution 3 ½ digit single range LCD
• 10 user-selectable analog output ranges for: 0-10ppm, 0-50ppm, 0-100ppm, 0-500ppm, 0-1000ppm, 0-.500%, 0-1%, 0-5%, 0-10% and an air cal. range of 0-25%
• 0-1VDC analog output
• Data logger. Logs data for 15 days @ 1min intervals, 30 days @ 2min intervals, etc
• 1-2 year life high-performance electrochemical sensor. Optional H2S resistant sensor eliminates the need for an H2S scrubber
• Rechargeable NiCad batteries
• Very compact and rugged
• Designed to meet intrinsic safety requirements

• High resolution 3 ½ digit single range LCD
• Comprehensive state-of-the-art electronics platform, includes: simple and intuitive user interface, 2-fully adjustable alarm relay contacts, programmable alarm configurations, alarm bypass feature, programmable alarm delays, on board data logger, 3-individual security settings, internal diagnostics, remaining sensor life indication, etc.
• 10 Standard analog output ranges: 0-10ppm, 0-50ppm, 0-100ppm, 0-500ppm, 0-1000ppm, 0-.500%, 0-1%, 0-5%, 0-10% and 0-25%
• Isolated 4-20mA. analog output