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Detector Tube Technology

Detector Tube Technology

Chemical detector tubes from different manufacturers work on the same principle and they use similar or same sensing chemicals for detecting the target gas concentration. However the physical dimensions of the tubes and the pump design to draw the required 100 ml of sample air varies from manufacturer to manufacturer.

With our newly introduced KwikDraw Tubes based on MSA Detector Tubes Technology which we acquired recently and Uniphos Detector Tubes which we already have since 1996, we have detector tubes matching tubes from any manufacturers across the world.


Uniphos Gas Detector Tube

More than 200 different UNIPHOS Gas Detection Tubes are available to accurately make spot measurements for over 500 gases and vapours.

The short-term UNIPHOS Gas Detection Tubes are used with the ASP-40 Air Sampling Pump.

Gas detector tubes provide a simple measurement technique to detect toxic gas concentration in air samples. The tubes are pre-calibrated and take only a few minutes to complete sampling. The concentration is read directly from the length of color stain.

  • Highly specific to target gas
  • Simple device
  • No requirement of complicated accessories
  • No requirement of specialist to operate
  • It is pre-calibrated and reads directly the target gas concentration
  • Available for most of the industrial toxic gases and chemical vapours

It is useful for the air monitoring at work place & confined space in Industries like:

  • Petrochemical & Refineries
  • Pharmaceutical
  • Chemical & Fertilizer
  • Fumigation
  • Food Industry
  • Pulp & Paper Mills Industries
  • Power & Steel Plants
  • Municipal Corporations
  • Environmental monitoring agencies and many more

Specific gas detector tubes by gas name:

PN = Part Number | SMR = Standard Measuring Range | SPEC = Datasheet

Gas Name PN SMR Spec
Nitrogen Dioxide & Nitric Oxide SNDNO-4L 2.5-200 ppm  
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
Acetaldehyde SAT-4M 10 to 300 ppm CF000621
Acetic Acid SAA-2 2.5 to 50 ppm CF000001
Acetone SAC-5 50 to 4000 ppm CF000002
Acetylene SAL-5 100 to 5000 ppm CF000003
Acid Gases SAG-2 2 to 40 ppm 1-80 PPM CF000680
Acrolien SAE-2 10 to 800 ppm CF000745
Acrylonitrile (DB) SAN-4L 5 to 120 ppm CF000004
Amines SMA-3 5 to 100 ppm 2.5-200 PPM CF000668
Ammonia SAM-2 2.5 to 50 ppm 1.25-100 PPM CF000005
Ammonia SAM-3 5 to 100 ppm 2.5-200 PPM CF000006
Ammonia SAM-4M 10 to 300 ppm 5-600 PPM CF000007
Ammonia SAM-4 50 to 1000 ppm 25-2000 PPM CF000008
Ammonia SAM-5 250 to 5000 ppm 125-10000 PPM CF000009
Ammonia SAM-8M 0.5 to 10% 0.25-20% CF000010
Ammonia SAM-9 1 to 30% 0.5-60% CF000011
Aniline SAI-2 2 to 30 ppm CF000013
Arsine SAR-2 1 to 30 ppm 0.5-60 PPM CF000014
Aviation Oil SAO-4 0.1 to 5 MG/L CF000015
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
Benzene (DB) SBE-2L 0.25 to 12 ppm CF000016
Benzene (DB) SBE-2M 0.2 - 15 ppm 0.1- 75 ppm CF000832
Benzene SBE-2 2.5 to 50 ppm 1.25-100 PPM CF000017
Benzene SBE-3 5 to 100 ppm 2.5-200 PPM CF000018
Bromine SBR-2M 1 to 20 ppm CF000019
Bromine SBR-3 5 to 100 ppm CF000020
1,3-Butadiene SBU-2M 1 to 20 ppm CF000021
1,3-Butadiene SBU-3 5 to 100 ppm CF000022
n-Butane SBT-5M 50 to 1400 ppm CF000627
1-Butanol SNB-4L 10 to 150 ppm 10-300 PPM CF000612
2-Butanol SIB-4L 10 to 150 ppm CF000557
Butyl Acetate SBA-6 0.005 to 1% CF000557
Butyl Acrylate SBC-3L 5 to 30 ppm CF000024
n-Butylamine (Amine Tube) SMA-3 5 to 100 ppm CF000668
CF000044CF000790 CF000050 CF000051
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
Carbon Dioxide SCD-5 300 to 5000 ppm 150-10000 PPM CF000025
Carbon Dioxide SCD-5.1 0.015-1 % 0.03 to 0.5 % - CF000026
Carbon Dioxide SCD-5.2 100 to 5000 ppm 50-10000 - CF000773
Carbon Dioxide SCD-7 0.25 to 3% 0.125-6 % CF000027
Carbon Dioxide SCD-8M 0.5 to 10% 0.25-20 % CF000028
Carbon Dioxide SCD-8 1 to 20% 0.5-40 % CF000029
Carbon Dioxide SCD-10 5 to 60% 2.5-60 % CF000030
Carbon Disuphide (DB) SCS-2 2.5 - 50 ppm 1.25-100 PPM CF000032
Carbon Disuphide (DB) SCS-3 5 - 100 ppm 2.5-200 PPM CF000033
Carbon Disuphide (DB) SCS-5M 50 - 1600 ppm CF000034
Carbon Monoxide SCO-2 1 to 30 ppm CF000753
Carbon Monoxide SCO-3 5 to 100 ppm CF000035
Carbon Monoxide SCO-4M 25 to 600 ppm 12.5-1200 PPM CF000037
Carbon Monoxide SCO-4 50 to 1000 ppm 10-2000 PPM CF000038
Carbon Monoxide SCO-5 100 to 3000 ppm 50-6000 PPM CF000039
Carbon Monoxide SCO-6M 0.01 to 0.7% 0.005-1.4% CF000040
Carbon Monoxide SCO-8L 0.1 to 7% CF000750
Carbon Monoxide SCO-8 1 to 20% 0.5-20% CF000042
Carbon Monoxide in H2 SCH-3 5 to 100 ppm CF000036
Carbon Monoxide in H2 SCH-5 100 to 3000 ppm CF000642
Carbon Tetrachloride (DB) SCT-3L 1 to 60 ppm CF000043
Carbonyl Sulphide (DB) SCU-3 5 to 100 ppm 2.5-200 PPM
Chlorine SCL-1M 0.25 to 5 ppm 0.25-10 PPM CF000045
Chlorine SCL-2 2.5 to 50 ppm 1.25-100 PPM CF000046
Chlorine SCL-3 5 to 100 ppm 2.5-200 PPM CF000047
Chlorine SCL-4M 50 to 500 ppm 25-1000 PPM CF000048
Chlorine Dioxide SCI-1M 0.1 to 5 ppm 0.25-10 ppm CF000045
Chlorobenzene SCB-4L 10 to 200 ppm 5-400 PPM CF000049
Chloroform SFC-3 10 to 100 ppm
Chloropicrin SCP-2M 10 to 200 ppm
O-Cresol SCR-2M 10 to 200 ppm
Cyclohexane SCY-5L 10 to 1200 ppm
Cyclohexane SCY-6L 0.025 to 0.6%
Cyclohexanone SCN-3 2 to 100 ppm
Cyclohexylamine SCA-2 0.5 to 30 ppm CF000656
Chloropicrin SCP-2M 0.1 - 16 ppm CF000718
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
1,2-Dichlorobenzene SDB-4M 10 to 300 ppm CF000709
1,2-Dichloroethane SDC-2 5 to 50 ppm CF000817
1,2-Dichloroethylene SDH-4M 20 to 400 ppm CF000742
Diesel SDL-4 0.1 to 5 MG/L CF000054
Diethyl Amine SDA-2M 1 to 20 ppm CF000055
Diethyl Ether SDE-6 0.04 to 1% CF000056
Dimethyl Formamide SMF-2 2 to 30 ppm CF000053
Dimethyl Sulphide SDS-1 0.5 to 10 ppm
1, 4 Dioxane SEO-7 0.07 to 4% CF000624
Ethylamine (Amine Tube) SMA-3 4.25 to 85 ppm CF000668
Ethanol SET-5 100-5000 ppm CF000901
Ethanol SET-7 0.05 to 5% CF000062
Ethanolamine (Amine Tube) SMA-3 4.45 to 89 ppm 2.5-200 PPM CF000668
Ethyl Acetate SEA-7 0.1 to 5% CF000063
Ethyl Benzene SEB-4L 5 to 150 ppm 2.5-300 PPM CF000057
Ethyl Benzene SEB-4M 30 to 40 ppm CF000058
Ethyl Formate SEF-4M 20 to 500 ppm CF000630
Ethyl Mercaptan SEM-2M 1 to 20 ppm 0.5-40 PPM CF000820
Ethyl Mercaptan in LPG SEM-(3M) 2 to 80 ppm CF000784
Ethyl Mercaptan SEM-4L 5 to 120 ppm 2.5-240 PPM CF000060
Ethyl Mercaptan SEM-4M 25 to 500 ppm 12.5-500 PPM CF000061
Ethylene Dibromide (DB) SED-2 1 to 50 ppm 0.5-100 PPM CF000688
Ethylene Glycol SEG-2 10 to 100 mg/m3 CF000757
Ethylene Oxide (DB) SEO-1 0.1 to 10 ppm CF000776
Ethylene Oxide (DB) SEO-3 1 to 100 ppm CF000748
Ethylene Oxide SEO-7 0.05 to 3% 0.025-6.0% CF000624
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
Formaldehyde SFO-1M 0.1 TO 5 ppm CF000735
Formaldehyde SFO-3 5 to 100 ppm 2.5-200 PPM CF000065
Formic Acid SFA-2M 1 to 15 ppm
Furan SFU-6 0.01 to 1% CF000665
Furfural SFL-2M 1 to 16 ppm CF000067
Gasoline SGA-6L 0.03 to 0.6% CF000636
General Hydrocarbons SHE-5L 10 to 1200 ppm CF000068
General Hydrocarbons SHE-6L 0.025 to 0.6% CF000069
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
n-Hexane SHE-5L 10 to 1200 ppm CF000068
n-Hexane SHE-6L 0.025 to 0.6% CF000069
n-Heptane (Gen. Hydro. Tube) SHE-5L 15 to 1800 ppm CF000108
n-Heptane (Gen. Hydro. Tube) SHE-6L 0.05 to 1.41% CF000109
Hydrazine SHY-1L 0.1 to 2 ppm CF000070
Hydrogen SHD-6M 0.05 to 0.8% CF000659
Hydrogen Chloride SHC-1 1 to 10 ppm 1 - 30 PPM CF000071
Hydrogen Chloride (DB) SHC-2M 2 to 20 ppm 1 - 40 PPM CF000072
Hydrogen Chloride (DB) SHC-3 5 to 100 ppm 2.5-200 PPM CF000073
Hydrogen Chloride SHC-4 50 to 1000 ppm 25-2000 PPM CF000074
Hydrogen Cyanide SHN-2 2.5 to 50 ppm 1.25-100 CF000075
Hydrogen Cyanide SHN-3 5 to 100 ppm 2.5-200 PPM CF000076
Hydrogen Cyanide SHN-4 50 to 1000 ppm CF000077
Hydrogen Fluoride SHF-2 0.5 to 30 ppm 0.5-60 PPM CF000078
Hydrogen Sulfide in CNG SHS-(1H) 0.5 to 7 ppm 0.25-14 PPM
Hydrogen Sulfide SHS-1H 0.5 to 7 ppm CF000758
Hydrogen Sulfide SHS-1 0.5 to 10 ppm CF000079
Hydrogen Sulfide SHS-2 1 to 30 ppm 0.5-60 PPM CF000080
Hydrogen Sulfide SHS-3L 2.5 to 60 ppm 1.25-120 PPM CF000081
Hydrogen Sulfide SHS-3 5 to 100 ppm 2.5-200 PPM CF000082
Hydrogen Sulfide SHS-4L 10 to 250 ppm 5-500 PPM CF000647
Hydrogen Sulfide SHS-4 50 to 800 ppm 25-1600 PPM CF000085
Hydrogen Sulfide SHS-5M 100 to 2000 ppm 50-4000 PPM CF000086
Hydrogen Sulfide SHS-7M 0.1 to 2% 0.05-4 % CF000087
Hydrogen Sulfide SHS-7 0.5 to 4% 0.25-8 % CF000088
Hydrogen Sulfide SHS-8L 0.2 to 7% 0.1-14 % CF000089
Hydrogen Sulfide SHS-8M 0.5 to 10% 0.25-20 % CF000090
Hydrogen Sulfide SHS-9 2 to 40% 1-40 % CF000091
Hydrogen Sulfide + Sulfur Dioxide(DB) SHS-3L + SSD-1 2.5 to 60 + 0.5 to 10 ppm CF000092
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
Isopropyl Alcohol SIP-7M 0.1 to 2.5% CF000779
Isopropyl Amine SPA - 2 2.5 to 50 ppm CF000094
Isopropyl Ethear SDE-6 0.013 to 0.34% CF000095
Mercury Vapor SHG-1L 0.1 to 2 mg/m3 0.1-7 mg/m3 CF000097
Maleic Anhydride SAA-2 1 to 20 ppm CF000096
Methanol SME-5 100 to 5000 ppm CF000098
Methanol (Methyl Alcohol) SME-8L 0.05-6% 0.05-12% CF000099
Methylamine (Amine Tube) SMA-3 5 to 100 ppm 2.5-200 PPM CF000668
Methyl Bromide SMB-2M 1 to 18 ppm 0.5-36 PPM CF000100
Methyl Bromide SMB-3 10 to 100 ppm 5-200 PPM CF000101
Methyl Bromide SMB-4M 20 to 300 ppm 10-600 PPM CF000102
Methyl Bromide SMB-4 50 to 1000 ppm 25-2000 PPM CF000103
Methylene Chloride (DB) SMC-3L 10 to 60 ppm CF000793
Methylene Chloride (DB) SMC-4M 50 to 500 ppm CF000639
Methylene Chloride (DB) SMC-4 30 to 1000 ppm CF000762
Methyl Cyclohexane SMY-5M 50 to 1600 ppm CF000782
Methyl Iodide SMO-7M 500 to 15000 ppm CF000779
Methyl Mercaptan SMM-2M 1 to 20 ppm 0.5-40 PPM CF000105
Methyl Mercaptan SMM-4L 5 to 120 ppm 2.5-240 PPM CF000106
Methyl Isobutyl Ketone SMI-6L 0.02 to 0.6% CF000107
Morpholine (Amine Tube) SMA-3 10 to 200 ppm CF000668
Multigas (Inorganic) Qualitative Type SMG-1 CF000697
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
Nitric Acid SNA-2M 1 to 20 ppm
Nitrogen Dioxide SND-2 0.5 to 30 ppm
Nitrogen Dioxide SND-4 10 to 1000 ppm
Nitrogen Dioxide & Nitric Oxide SNDNO-4L 2.5-200 ppm
Nitrogen Oxides (NOx, NO, NO2) SNO-2M 0.5 to 15 ppm
Nitrogen Oxides (NOx, NO, NO2) SNO-4L 10 to 250 ppm
Nitrogen Oxides (NOx, NO, NO2) SNO-5M 100 to 2500 ppm
O - Cresol SCR-2M 1 - 25 ppm
Octane SOC-5 3 to 23 MG/L
Oxygen SOX-9M 3 to 24%
Ozone SOZ-3 5 to 100 ppm
Ozone SOZ-4M 25 to 500 ppm
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
n-Pentane (Gen. Hydro. Tube) SHE-5L 7 to 840 ppm
n-Pentane (Gen. Hydro. Tube) SHE-6L 0.0085 to 0.2%
Phenol SPE-2M 1 to 25 ppm
Phosgene SPG-1 0.1 to 10 ppm
Phosphine SPH-1L 0.05 to 2.5 ppm
Phosphine SPH-1M 0.3 to 5 ppm
Phosphine SPH-1 0.1 to 10 ppm
Phosphine SPH-3 5 to 100 ppm
Phosphine SPH-4 50 to 1000 ppm
Phosphine SPH-5 150 to 3000 ppm
Phosphine SPH-6M 300 to 8000 ppm
Pyridine SPY-2M 1 to 14 ppm
Stoddard Solvent SSS-5M 50 to 8000 mg/m3
Sulfur Dioxide SSD-1 0.5 to 10 ppm
Sulfur Dioxide SSD-2M 1 to 25 ppm
Sulfur Dioxide SSD-3 5 to 100 ppm
Sulfur Dioxide SSD-4M 20 to 300 ppm
Sulfur Dioxide SSD-6M 500 to 8000 ppm
Sulfur Dioxide SSD-5 0.02 to 0.3%
Sulfur Dioxide SSD-7M 0.1 to 3%
Sulfur Dioxide SSD-7 0.25 to 5%
Sulfuric Acid SSA-1L 0.5 to 5 mg/m3
Styrene SST-4L 2.5 to 500 ppm
Gas Name Tube Code Range Extended Range Spec Uniphos Part No.
t-Butyl Amine (Amine Tube) SMA-3 3.9 to 78 ppm
Tert Butyl Mercaptan SBM-1M 0.5 to 15 mg/m3
Tert Butyl Mercaptan SBM-1 0.5 to 30 mg/m3
Tert Butyl Mercaptan SBM-4L 5 to 120 ppm
Tetrahydrofuran STH-4 50 to 800 ppm
Toluene STO-2 2 to 50 ppm
Toluene STO-4M 10 to 300 ppm
Tetrachloroethylene (DB) STE-3 5 to 100 ppm
1,1,1-Trichloroethane STC-4M 1 to 16 ppm
Trichloroethylene (DB) SCE-2M 1 to 16 ppm
Trichloroethylene (DB) SCE-4L 20 to 250 ppm
Trichloroethylene (DB) SCE-6 0.05 to 1%
Triethylamine (Amine Tube) SMA-3 2.15 to 43 ppm
Trimethylamine (Amine Tube) SMA-3 1.7 to 34 ppm
UDMH SHY-1L 0.1 to 2 ppm
Vinyl Chloride SVC-2M 1 to 20 ppm
Vinyl Chloride SVC-6 0.05 to 1%
Water Vapor SWA-4L 2 to 10 lb/MMCF
Water Vapor SWA-4 6 to 40 lb/MMCF
Water Vapor SWA-5 0.1 to 2 MG/L
Water Vapor SWA-7M/lb 62 to 1125 lb/MMCF CF000882
Water Vapor SWA-7/lb 62 to 1835 lb/MMCF CF000884
Water Vapor SWA-7M 1 to 18 MG/L CF000146
Water Vapor SWA-7 1 to 30 MG/L CF000147
Xylenes SXY-4 25 to 1000 ppm 25 to 2000 PPM CF000148
Hand Pumps & Accessories PN
ASP-40 PISTON HAND PUMP ASP-40
Plastic Pump ASP-11P
Air Sampling Pump Trade ASP-40T
PUMP KIT ASP-40 KIT ASP-40K
ASP-21 PISTON HAND PUMP ASP-21
PUMP KIT ASP-21 KIT ASP-21K
REBUILD KIT for ASP Series Hand Pump REBUILDKIT
GREASE for ASP Series Hand Pump GREASE
2 INLET ADAPTERS for ASP Series Hand Pump INLET
2 PLUNGER GASKETS for ASP Series Hand Pump GASKET
TUBE TIP CUTTER CUTTER
Stainless steel gas sampling bulb w/ 1/4″ male pipe thread BULBSS
Gas Name Range Uniphos Part No.
Ammonia Dosimeter 25 - 500 ppmHR CF000012
Carbon Dioxide (5-120) x 10^3 ppm HR CF000031
Oxygen Dosimeter (1 - 100 ) x 150 ppm HR CF000645
Phos.Dosimeter - LPG-1 (1-200)X10^3 ppm HR CF000121
Phos.Dosimeter - LPG-2 (1-200)X10^2 ppm HR CF000122
Gas Name Range Uniphos Part No.
Sulphide Ion 0.5 - 20 ppm CF000149
Sulphide Ion 1 - 100 ppm CF000150
Sulphide Ion 2 - 300 ppm CF000151
Chloride Ion 5 - 200 ppm CF000152
Chloride Ion 10 - 2000 ppm CF000153
Description Tube Code No. Uniphos Part No.
SMOKE TUBES (Air flow indicator tubes) Box of 10 tubes SMT-1 CF000154
SMOKE TUBES KIT (Tubes, Bulb, Tip cutter, Pouch) SMT-K CF000829
SMOKE TUBES (Air flow indicator tubes) Box of 6 tubes SMT-2A CF000885
GAS NAME Range Tube Code No.
Arsine 0.05 - 3 PPM STR-ARS
Hydrogen Cyanide 1 - 20 PPM STR-HCN
Hydrogen Sulphide 1 - 20 PPM STR-H2S
Mercaptan 0.5 - 10 PPM STR-MER
Phosphine 0.3 - 10 PPM STR-PH3
Size Range Tube Code No.
Standard 50/100 mg LCT-100
Large 200/400 mg LCT-400
Jumbo 200/800 mg LCT-800
Name Tube Code No.
PID Pre Filter Butadiene Detector Tube PBU-1
URPID Pre-Filter Tube Benzene 0.05 PBE-1
VOC Zeroing tube VOC-1

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