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Senko Single Gas Detector - Sulphur Dioxide (SO2)
Senko Single Gas Detector - Sulphur Dioxide (SO2)


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The Senko SGT-P-H2S is a low-cost portable disposable single gas detector - Sulphur Dioxide (SO2)

The detector uses natural diffusion into electrochemical sensors with its state of the art electronics and software to give reliable and repeatable readings. The casing is a rubber based special high strength material giving it an IP67 rating making it anti-slip, completely dust proof and water proof up to 1 meter. The sensor has inbuilt data logging which will timestamp the gas level readings and alarms. This data can be downloaded to a PC using the SGT IR Link for analysis. The gas detector can be operated continuously for two years without replacement and then can be safely disposed of.

  • IEC Ex approved
  • Large LCD display of alarms and current concentration
  • Clearable Max and Min gas concentration recorded
  • Adjustable alarm levels using the SGT IR Link
  • Self-testing and little calibration required
  • Lifetime remaining displayed in months
  • Self zero gas adjustment function
  • Data uploading of concentration and alarms 


Specification NameSpecification Value
Detectable Gas Ranges SO₂ = 0-50ppm 
Output Specifications LCD display of current reading with alarm sounder and vibrator
Sensor Technology Electrochemical Cell
Power Consumption DC3.6V, 1.2Ah Lithium battery
Operating Life 24 months, based on 2 minutes of alarm per day
Operating Temperature -40℃ ~ +50℃ (for Toxic) / -35℃ ~ +50℃ (for O2)
Operating Humidity 5% ~ 95% RH (Non-condensing)
Dimensions 49mm(W) x 84mm(H) x 40mm(D)
Weight 93g (Toxic), 104g (O2) (Battery, clip included)
Enclosure Material Rubber-Base PC Case
Approval Ex ia IIC T4 Ga (Korea Ex, IECEx, ATEX, CSA & UL, INMETRO)
Enclosure Rating IP67 - Dust-tight and Waterproof up to 1 meter
Calibration Requirement For Oxygen version fresh air calibration required every 30 days in a fresh air environment.
Warranty 24 months from date of dispatch

Poisoning: Senko sensors are designed to operate in a wide range of harsh environments and conditions. However, it is important that exposure to high concentrations of solvent vapours is avoided, both during storage and operation

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