http://www.nico2000.net/analytical/Qnitrite.htm
Technical Specifications for the Nitrite Ion-Selective Electrode (ELIT 8071)
Linear (Nernstian) measuring range : 1 to 460ppm
Total measuring range : 0.5 to 460ppm
Detection limit : 0.5ppm
Response time : < 10 seconds (defined as time to complete 90% of the change in potential after immersion in the new solution.)
http://www.nico2000.net/analytical/Qnitrate.htm
Technical Specifications for the Nitrate Ion-Selective Electrode (ELIT 8021)
Linear (Nernstian) measuring range : 3.1 to 62,000 ppm
Total measuring range : 0.4 to 62,000 ppm
Detection limit : 0.4 ppm
