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Product Comparison Table

Visual Inspection Cameras

  Wohler VIS 250 Wohler VIS 350 Wohler VIS 400
Dry and wet environments      
5" dia or larger  
3" dia to 5" dia
1.5" dia to 3" dia  
Features      
Video Memory (4 GB SD-Card)
Digital Meter Counter
Video Output (RCA)
Built-in sonde for location
Audio recording    
Monitor Display 7" TFT 7" TFT 7" TFT
Camera Head: Pan- and tilt  

Flue Gas Analyzer

  Wohler A 550 L Wohler A 550 Wohler A 550 Industrial
Applications      
Residential  
Industrial    
Manifold and Differential Pressure
Tuning Guide
Data Management
Sensors      
O2 (0...21%)
CO 0...35,000 ppm 0...4,000 ppm 0...100,000 ppm
CO high   0...100,000 ppm  
NO (0...3,000 ppm)
SO2 (0...5,000 ppm)  
NO2(0...1,000 ppm)  
Stack Temperature -4...1,472 °F -4...1,472 °F  
Supply Air Temperature -4...212 °F -4...212 °F  
Differential Pressure 44.16 inWC 44.16 inWC  
Operation Features      
Touch-Screen
Full Color Display
Infrared port for printer
Bluetooth® port for computer  
Safety Features      
Warranty 48 months 48 months 12 months
Self Diagnosis for Sensors and Instrument
CO-valve and CO purge-pump    
4 Filter Technology
Filter and Pump Monitor
Field Replaceable Sensors and Longtime Sensors F/L F/L F/L

Vipers

  Wohler Viper XL/XXL Wohler Viper L Wohler Viper M
Applications      
Chimneys 16" and larger 6-16" 6-16"
Flue Gas 10" and larger 6-10" 2-10"
Air Duct 10" and larger 6-10" 3-10"
Features      
Horizontal and vertical sweeping
Sweep top down  
Stainless steel approved
Portable
Lock/brake
Extendable
Technical Data      
Length 165 ot 328 ft 50 or 65 ft. 50 or 65 ft.
Diameter GRP rod; .5" dia GRP rod; .4" dia GRP rod; .3" dia
Thread M10 M10 M10