Photo Model No. for use Type Taget gases Detection Range Features
NAP-100AM Residential Catalytic methane,iso-butane,hydrogen,combustible,ammonia methane(0.03-5%),iso-butane(0.02-1.8%) Universal type
NAP-100AC Residential Catalytic methane,iso-butane,hydrogen,combustible,ammonia methane(0.03-5%),iso-butane(0.02-1.8%) High performance, Commercial application
NAP-100AH Residential Catalytic Carbon monoxide,hydrogen,co 1- 50%LEL For hydrogen
NAP-100AD Residential Catalytic methane,iso-butane,hydrogen,combustible,ammonia 1- 50%LEL For high temperature
NE4-CO NE4-CO Industrial Electrochemical Carbon monoxide CO 0 - 1,000 ppm Compatible with 4 series sensor of City Tech,Standard type
NE4-H2S-500 NE4-H2S Industrial Electrochemical Hydrogen sulfide H2S 0 - 100 ppm Standard type, 0-100ppm, 500nA/ppm
NE4-H2S-500 NE4-H2S-100 Industrial Electrochemical Hydrogen sulfide H2S 0 - 100 ppm 0-100ppm, 700nA/ppm, Compatible with City's
NE4-H2S-500 NE4-H2S-200 Industrial Electrochemical Hydrogen sulfide H2S 0 - 200 ppm 0-200ppm, 500nA/ppm
NE4-H2S-500 NE4-H2S-500 Industrial Electrochemical Hydrogen sulfide H2S 0 - 500 ppm 0-500ppm, 200nA/ppm
NE4-NH3-5000 NE4-NH3 Industrial Electrochemical Ammonia NH3 0 - 100 ppm Standard type, 0-100ppm
NE4-NH3-5000 NE4-NH3-1000 Industrial Electrochemical Ammonia NH3 0 - 1000 ppm 0-1000ppm
NE4-NH3-5000 NE4-NH3-5000 Industrial Electrochemical Ammonia NH3 0 - 5000 ppm 0-5000ppm
NE4-NO2 NE4-NO2 Industrial Electrochemical Nitrogen dioxide NO2 0 - 20 ppm Standard type, 0-20ppm
NE4-NO Industrial Electrochemical Nitric oxide NO 0 - 250 ppm Standard type
NE4-Cl2 Industrial Electrochemical Chlorine Cl2 0 - 10 ppm Standard type
NE4-HCHO NE4-HCHO Industrial Electrochemical Formaldehyde HCHO 0 - 50 ppm More than 0.5ppm
NIS-02C NE7-CO-H Industrial Electrochemical Carbon monoxide CO 0-1000ppm 7 series type, 0-1000ppm, H2 compensated
NIS-02C NE7-CO-H10000 Industrial Electrochemical Carbon monoxide CO 0 - 1% 7 series type, 0-10000ppm, H2 compensated
NCP-180-N NCP-170 Industrial Catalytic General combustible gases 0 - 100%LEL 2.0V-170mA,matched pair type
NCP-170S Industrial Catalytic General combustible gases 0 - 50%LEL 2.0V-170mA, single header type
NCP-180-N NCP-300 Industrial Catalytic General combustible gases 0 - 100%LEL 2.0V-300mA,matched pair type
NCP-300S Industrial Catalytic General combustible gases 0 - 50%LEL 2.0V-300mA, single header type
NCP-180-N NCP-180 Industrial Catalytic General combustible gases 0 - 100%LEL 2.6V-170mA, matched pair type
NCP-180-N NCP-180-H Industrial Catalytic Hydrogen 0 - 100%LEL 1.6V-140mA, matched pair type
NCP-180-N NCP-180-A Industrial Catalytic Acetylene 0 - 100%LEL, 0 - 50%LEL 2.0V-170mA, matched pair type
NCP-180-N NCP-180-N Industrial Catalytic Ammonia 0 - 100%LEL, 0 - 50%LEL 2.2V-150mA, matched pair type
NCP-180SH Industrial Catalytic Hydrogen 0 - 100%LEL 1.6V-140mA, single header type
NCP-180SN Industrial Catalytic Ammonia 0 - 50%LEL 2.2V-150mA, single header type
NIS-02C NCP-50S Industrial Catalytic General combustible gases 0 - 100%LEL 4.25V-50mA, single header type
NIS-02C NCP-70S Industrial Catalytic General combustible gases 0 - 100%LEL 3.0V-75mA, single header type