Range

Maximum Overload

Resolution

DATA 

Brand

model

0-100ppm

100ppm

＜1ppm

Output Signal:：130nA/ppm±30nA/ppm；T90＜60S；Expected Operating Life>24months；3-electrode electrochemical；Not required

CITY

NH3 3E100SE

200ppm

0.5ppm

Output Signal:0.135±0.035μA/ppm；T90＜90S；Expected Operating Life>12months；3-electrode electrochemical；Not required

SolidsenS

4NH3-100

＜1ppm

Output Signal:100±30nA/ppm；T90＜40S；Expected Operating Life>24months；3-electrode electrochemical；Not required

SGX

4NH3-100

0.3ppm

Output Signal:25-45nA/ppm；T90＜60S；Expected Operating Life48months；3-electrode electrochemical；Not required

alphasense

NH3-B1

0-200ppm

1000ppm

0.3ppm

Output Signal:17-27nA/ppm；T90＜60S；Expected Operating Life48months；3-electrode electrochemical；Not required

alphasense

NH3-A1

0-300ppm

500ppm

＜2ppm

Output Signal:40±15nA/ppm；T90＜40S；Expected Operating Life>24months；3-electrode electrochemical；Not required

DD

4NH3-300

0-500ppm

500ppm

＜2ppm

Output Signal:35nA/ppm±15nA/ppm；T90＜90S；Expected Operating Life>24months；3-electrode electrochemical；Not required

CITY

NH3 3E500SE

0-1000ppm

1000ppm

＜12ppm

Output Signal:8nA/ppm±4nA/ppm；T90＜90S；Expected Operating Life>24months；3-electrode electrochemical；Not required

CITY

NH3 3E1000SE

2000ppm

1ppm

Output Signal:0.0375±0.0225μA/ppm；T90＜120S；Expected Operating Life>24months；3-electrode electrochemical；Bias Voltage300mV

SolidsenS

7NH3-1000

1500ppm 

5ppm

Output Signal:8±4nA/ppm；T90＜60S；Expected Operating Life>24months；3-electrode electrochemical；Not required

SGX

4NH3-1000

0-5000ppm

5000ppm

＜50ppm

Output Signal:4nA/ppm±2nA/ppm；T90＜90S；Expected Operating Life>24months；3-electrode electrochemical；

Not required

CITY

NH3 3E100SE

10-100ppm

RS/RO：0.063-0.63

Ammonia leak detection in refrigerators;

Ventilation control for the agricultural and poultry industries，Semiconductor

FIGARO

TGS2444

30-300ppm

50-150ppm

Ammonia leak detection in refrigerators;

Ventilation control for the agricultural and poultry industries,Semiconductor

FIGARO

TGS826

1-500ppm

1.5-15ppm

Semiconductor

SGX

MICS-5914