• Digitally displays 3 elements simultaneously
  • Auto calibration for O2 sensor
  • Auto zero adjustment for combustible gas sensor
  • Auto zero adjustment for H2S sensor
  • 2 power supply (battery and AC 100V)
  • Data logger for trend analysis   (up to 4000 measurements)
  • Built-in water trap

Model MD-801
Measuring Gas Oxygen Combustible Gases Hydrogen Sulphide
Measuring Principle Galvanic cell Catalytic combustion Chronoamperometry
Measuring Range 0 - 50.0vol% 0 - 100%LEL 0 - 50.0ppm
Resolution 0.1vol% 1%LEL 0.1ppm
Accuracy Within ±0.5vol%O2 at below 25.0vol%; Within ±3.0vol%O2 at 25.0vol% and over Within ±10%LEL at below 100%LEL Within ±1.5ppm at below 30ppm; Within ±10% of the indication value at 30ppm and over
Display Method Digital liquid crystal
Alarm Setting 18% or less 20%LEL and over 10ppm and over
Alarm Method LED Lamp, LCD display and buzzer
Response Time Within 15 seconds at 90% response
Power Source 4 x "D"size alkaline dry batteries or AC 100V
Continuous Operation Approximately 35 hours with alkaline dry batteries
Power Alarm Lamp and buzzer
Operating Temperature Range -10 - 40℃
Dimensions 230(W)×165(H)×130(D)mm
Weight 2.8kg (incdluing batteries and sensors)
Standard Accessories Gas sampling tube (8m) with float-type sampler, Carrying case