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Chemical Type

Measurement Range

Terra Part #PriceShips in
1,4-Dioxane 20-500 ppm 9002-94 21054 $885-7 Days2
Acetaldehyde 5-140 ppm 9002-08 20968 $865-7 Days3
Acetone 20-5000 ppm 9002-12 20972 $875-7 Days4
Acrylonitrile 0.25-20 ppm 9002-18 20978 $865-7 Days5
Acrylonitrile 1-120 ppm 9002-17 20977 $865-7 Days6
Benzene 1-100 ppm 9002-30 20990 $865-7 Days7
Chloroform 23-500 ppm 9002-69 21029 $865-7 Days8
Chloropicrin 0.05-16 ppm 9002-70 21030 $865-7 Days9
Dichloromethane 10-1000 ppm 9002-85 21045 $865-7 Days10
Ethylene 0.1-100 ppm 9003-06 21066 $865-7 Days11
Ethylene 20-1200 ppm 9003-07 21067 $865-7 Days12
Ethylene Glycol 3-40 mg/m³ 9003-10 21070 $995-7 Days13
Ethylene Oxide 1-15 ppm 9003-13 21073 $995-7 Days14
Formaldehyde 1-35 ppm 9003-14 21074 $991-3 Days15
Formaldehyde 20-1500 ppm 9003-15 21075 $865-7 Days16
Gasoline 0.05%-0.6% 9003-19 21079 $865-7 Days17
General Hydrocarbons 50-1400 ppm 9003-20 21080 $865-7 Days18
Hydrazine 0.05-10 ppm 9003-24 21084 $865-7 Days19
Hydrogen Cyanide 0.5-100 ppm 9003-29 21089 $865-7 Days20
Isopropyl Alcohol 20-1200 ppm 9003-54 21114 $1015-7 Days21
Methyl Alcohol 20-1000 ppm 9003-62 21122 $885-7 Days22
Methyl Bromide 0.4-80 ppm 9003-65 21125 $865-7 Days23
Methyl Ethyl Ketone 20-1500 ppm 9003-73 21133 $865-7 Days24
Methyl Methacrylate 10-160 ppm 9003-80 21140 $865-7 Days25
Ozone 0.05-3 ppm 9003-98 21158 $885-7 Days26
Ozone 50-1000 ppm 9003-99 21159 $865-7 Days27
Propylene 50-1000 ppm 9004-14 21174 $865-7 Days28
Styrene 2.5-300 ppm 9004-19 21179 $865-7 Days29
Trichloroethylene 0.2-36 ppm 9004-35 21195 $875-7 Days30
Vinyl Chloride 0.1-12 ppm 9004-43 21203 $875-7 Days31
Chemical Type
Measurement Range
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Up to 30-day trial periods, free return shipping and on-site training available for qualified equipment.

Request demo from your product specialist or add note to your order or quote request.

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Free shipping in contiguous USA
Custom-configured product: Terra will quote.
Custom-configured product: Terra will quote.
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Product Details

• Toxic Gas Detector System is ideal for day-to-day monitoring of exhaust purification filter efficiency

• Small size and ease of use allow spot testing of a wide variety of hazardous gases and vapors

• Precision sampling pump draws an air sample through the detector tube

• Select the desired detector tubes for your application when you configure your order

• Each tube is formulated with high purity reagents that absorb and react with the measured gas or vapor, causing a colorimetric stain that corresponds in length to the concentration of the gas or vapor being measured

• Complete, easy-to-use sampling and analysis system

• Detects and measures hazardous gases and vapors with a single stroke, minimizing sample variations

• Certified by the Safety Equipment Institute (SEI)

• Ideal for monitoring performance of Ductless Fume Hoods

• The most cost effective solution to air sampling and analysis

Features & Benefits

Features & Benefits

Toxic Gas Detector System

More Information

Four types of tubes provide the needed flexibility for different gases and sampling conditions.

Direct Reading Scale
In this type, the colorimetric stain varies in length proportional to the amount of gas or vapor being measured. The concentration is read directly off a scale etched on each tube.

Chart Comparison Tubes
This type works similar to the direct reading type above. A sample is taken and the stain length is compared to a printed concentration chart enclosed with each box of tubes.

Color Comparison Tubes
In this type, the intensity of color change, rather than the length of stain, is compared to a standard color chart.

Multi-Part Tube Sets
The multi-part tube sets use a pre-treat or primary reaction tube in addition to the detector tube. The “front-end” tube scrubs the sample air of either moisture or potentially interfering gases, which might otherwise cause erroneous results.

Simple Operation
Only three easy steps are needed to operate the detector: first, break off the tips of a fresh detector tube; second, insert the tube, with arrow pointing toward the pump, into the pump’s inlet; third, pull out the pump handle to automatically lock, and the pump begins to draw a 100cc sample through the detector tube. A proprietary Sample Vue indicator shows when sampling is completed. More detailed information is on an instruction card enclosed with each pump and box of detector tubes. The precision sampling pump is certified by the Safety Equipment Institute (SEI).
Break tips in pump's tip cutter
Insert tube into pump's sample inlet
Pull out the pump handle to draw a 100cc sample

Comprehensive Product Portfolio

Terra’s comprehensive product portfolio includes solutions for every application and budget. Our technical sales staff will guide you toward the product most suitable for your requirements.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Dedication to Business Ethics

Terra is committed to conducting business according to the highest standard of professional ethics and conduct. To review Terra’s ethics code, please visit:

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