S311 portable gas detector

 S311 is a pump type single gas detector with high sensitivity. The detection principle of semiconductor or poisonous gas is adopted, which is more suitable to find and detect the location of leakage gas. Compact size, simple operation, easy to carry, can also be accompanied by flexible probe and sampling handle, the hand feels very comfortable. Detection gas: methane, natural gas, ammonia gas, hydrogen gas, propane, acetone, gasoline, coolant, ethanol, oxide, hydrogen sulfide, paint, thinner, industrial solvent, alcohol, gas fuel and other toxic and harmful gases.

Functions Features:

  • Color LCD Display
  • Sensor Calibration-free, Original Imported Sensor
  • Rapid Detection of Gas Leakage Points
  • Flexible probe with adjustable sensitivity can be selected.
  • Low Voltage Alarm and Automatic Shutdown
  • Sensor fault detection and alarm
  • Fast preheating, fast response time
  • Audio Alarm Signal with Variation of Frequency with Concentration
  • Alarm value can be set.
Detection gas: Flammable/toxic gas
Detection method: Pump suction
Detection principle: Semiconductor/catalysis/electrochemistry
scope of test: See Schedule
Display mode: color LCD
Interface definition: U3 port (USB)
Charged battery: 3.7V-1700mAh lithium ion battery
Alarm method: Sound, light and vibration alarm
Response time: < 10s
Work time: >8h (combustible), 300 hours (toxic)
Work temperature: - 20 ℃ ~ 60 ℃(Combustible) - 20 ℃ ~ 40 ℃(poison gas)
Operating temperature: -40 ℃ ~ 70 ℃
Security level: Ex ib IIB T3 Gb
Explosion-proof certificate number: CNEX18.4930X
Weight: 310g
Dimensions: 178mm * 79mm * 48mm

Contact us

Add: Lafayette has a great customer service
Tel: 22270426-22270953-22271230
Hotline: 02122270426


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