HT-1805 4 in 1 Gas Analyser/Air quality monitoring Meter– Item: HT-1805 Four in one gas detector Gas Type: Oxygen, Carbon Monoxide, Hydrothion, Combus. HT-1805 is a type of multiple-function gas detector and detects concentration of O , CO, H S and LEL (inflammable gas) and provides triple alarm functions of light, vibration and buzzing so that you can obtain the alarm signal effectively and timely to keep away from danger. The instrument is applied in agriculture, petroleum chemical engineering, electric, fire fighting, natural gas, steel industry, sewage treatment and other fields.

Considerations

• The electronic sensors and microprocessors used on the product belong to precision electronic device. The product must be kept away from water, fire, or sites with strong electromagnetic interference to prevent influence on/damage to the device.
• Don’t block; or avoid strong air or hot air blowing to the sensors.
• Please use dry cloth to wipe the instrument case at the time of cleaning. Don’t use damp cloth or corrosive detergents.
• Don’t dismantle and remodel the product without authorization.

It enters measurement interface after switching on. The oxygen readings can be displayed at once. Due to the characteristics of electrochemical transducers, the reading of other three types of gas will be displayed in 1 minute. When the gas concentration meets any alarm setting value, the instrument will give out alarm in three types of forms including light, sound and vibration. When the measurement value returns to normal scope, the alarm will disappear automatically.

FEATURE

• HT-1805 detects concentration of O2, CO, H2S and LEL(inflammable gas)
• Light alarm function, more intuitive to the user to recognize the danger by the light warning
  
•  Vibration and buzzing alarm function, the user can obtain the alarm signal effectively and timely to keep away from danger
  
•  TWA(Time Weighted Average): within the limit, poisonous gas will not produce harmful influence on workers who are exposed to it every day
• STEL(Short Term Exposure Limit): with time weight of 15 minutes, calculate the average value by measuring many times in 15mins
• High concentrator, low concentrator, TWA & STEL alarm se3ng, the user can freely set the values
• Back-light design, you can hold down the "ENT" key to switch on/off back light
• Liquid crystal display screen, anti-reflective and anti-dazzling, provides an excellent viewing experience

SPECIFICATIONS

• Detector: O2, CO, H2S & LEL (inflammable gas)
• Power supply: built-in 3.7V lithium battery
  
• O2 measuring range: 0 - 30%, resolution: 0.1%
  
• LEL measuring range: 0 - 100%, resolution: 1%
  
• H2S measuring range: 0 - 500 PPM, resolution: 1PPM
  
• CO measuring range: 0 - 9999 PPM, resolution: 1PPM
  
• Working temperature: -10-50°C
  
• Storage temperature: 0-50°C
  
• Working humidity: 15%-90%RH (No condensation)
  

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