l The instrument can be equipped with dozens of kinds of sensors such as electrochemical, catalytic, non-dispersive infrared (NDIR) and photo-ionization detector (PID) sensors in order to meet users’ different demands;

l The instrument can not only display the concentration of a dangerous gas in real time but also calculate the TWA and STEL values of a toxic gas and display the results on the LCD as per corresponding instructions;

l The instrument possesses analog, digital and on/off signal outputs simultaneously;

l The ultra-large LCD screen is equipped with ultra-bright backlight, convenient for reading;

l  Its Protection Classification can exceed IP66;

Effects of Various O2 Levels

Concentration Of Oxygen Resulting Conditions on Humans

23.5%        Volume Maximum "Safe Level"; OSHA

21%           Oxygen Concentration of AIR (20.954)

19.5%       Minimum "Safe Level"; OSHA, NIOSH

17%           Impairment of judgment starts to be evident

16%           First signs of anoxia appears 

16-12%     Breathing and pulse rate increases, muscular co-ordination is slightly impaired

14-10%     Consciousness continuous; emotional upsets, abnormal fatigue upon exertion, disturbed respiration

10-6%       Nausea and vomiting, inability to move freely and loss of consciousness may occur

 <6%         Convulsive movements and gasping respiration occurs; respiration stops and a few minutes later heart action ceases