Air Quality Sensors 4 Series Electrochemical Ozone Sensor 20ppm
SGX-4O3-20
Amphenol SGX Sensortech
1:
£86.60
2 In Stock
Mouser Part No
523-SGX-4O3-20
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Electrochemical Ozone Sensor 20ppm
2 In Stock
1
£86.60
5
£76.98
10
£62.18
20
£59.29
60
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60
£56.99
100
£54.92
260
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Gas Sensor
Ozone (O3)
- 30 C
+ 50 C
Air Quality Sensors 4 Series Electrochemical Bromine 5ppm
SGX-BR2-5
Amphenol SGX Sensortech
1:
£197.20
23 In Stock
Mouser Part No
523-SGX-BR2-5
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Electrochemical Bromine 5ppm
23 In Stock
1
£197.20
5
£184.71
10
£180.35
20
£180.34
260
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260
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Gas Sensor
Multi-Gas
- 20 C
+ 40 C
Air Quality Sensors 4 Series Electrochemical Fluorine 5ppm
SGX-F2-5
Amphenol SGX Sensortech
1:
£197.21
9 In Stock
Mouser Part No
523-SGX-F2-5
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Electrochemical Fluorine 5ppm
9 In Stock
1
£197.21
5
£184.94
10
£180.48
20
£166.70
60
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60
£166.50
100
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Electrochemical 4-series
Fluorine
0 PPM
5 PPM
Analog
- 20 C
+ 40 C
Electro-Chemical
Air Quality Sensors 4 Series High Conc CO Sensor - 10000ppm
SGX-4CO-10K
Amphenol SGX Sensortech
1:
£69.11
6 In Stock
Mouser Part No
523-SGX-4CO-10K
Amphenol SGX Sensortech
Air Quality Sensors 4 Series High Conc CO Sensor - 10000ppm
6 In Stock
1
£69.11
5
£58.30
10
£44.01
100
£43.89
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Carbon Monoxide
0 PPM
10000 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series CO Sensor - 1,000ppm
SGX-4CO-LC
Amphenol SGX Sensortech
1:
£43.62
9 In Stock
Mouser Part No
523-SGX-4CO-LC
Amphenol SGX Sensortech
Air Quality Sensors 4 Series CO Sensor - 1,000ppm
9 In Stock
1
£43.62
5
£41.90
10
£22.23
100
£21.07
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Carbon Monoxide
0 PPM
1000 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Hydrogen Sulfide sensor 300ppm
SGX-4H2S-300
Amphenol SGX Sensortech
1:
£48.51
2 In Stock
Mouser Part No
523-SGX-4H2S-300
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Electrochemical Hydrogen Sulfide sensor 300ppm
2 In Stock
1
£48.51
5
£39.26
10
£29.45
100
£26.14
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Min.: 1
Mult.: 1
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Electro-Chemical
H2S
0 PPM
300 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series Ammonia Sensor - 300ppm
SGX-4NH3-300
Amphenol SGX Sensortech
1:
£102.46
1 In Stock
Mouser Part No
523-SGX-4NH3-300
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Ammonia Sensor - 300ppm
1 In Stock
1
£102.46
5
£87.18
10
£66.70
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Ammonia
0 PPM
300 PPM
Analog
- 40 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series NO2 Sensor 2 Electrode - 20ppm
360°
+3 images
SGX-4NO2-2E
Amphenol SGX Sensortech
1:
£50.74
6 In Stock
Mouser Part No
523-SGX-4NO2-2E
Amphenol SGX Sensortech
Air Quality Sensors 4 Series NO2 Sensor 2 Electrode - 20ppm
6 In Stock
1
£50.74
5
£49.59
10
£32.40
100
£31.59
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Nitrogen Dioxide
0 PPM
20 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series ETO Gas Sensor 20ppm
SGX-4ETO
Amphenol SGX Sensortech
1:
£84.35
14 In Stock
Mouser Part No
523-SGX-4ETO
Amphenol SGX Sensortech
Air Quality Sensors 4 Series ETO Gas Sensor 20ppm
14 In Stock
1
£84.35
5
£77.69
10
£66.70
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Ethylene Oxide
0 PPM
20 PPM
Analog
- 20 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series Ammonia Sensor - 1000ppm
SGX-4NH3-1000
Amphenol SGX Sensortech
1:
£70.62
42 In Stock
Mouser Part No
523-SGX-4NH3-1000
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Ammonia Sensor - 1000ppm
42 In Stock
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Min.: 1
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Electrochemical 4-series
Ammonia
0 PPM
1000 PPM
Analog
- 40 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm
SGX-4SO2
Amphenol SGX Sensortech
1:
£66.99
35 In Stock
Mouser Part No
523-SGX-4SO2
Amphenol SGX Sensortech
Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm
35 In Stock
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Min.: 1
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Electrochemical 4-series
Sulfur Dioxide
0 PPM
20 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Hydrogen Chloride 30ppm
SGX-HCL-30
Amphenol SGX Sensortech
1:
£220.36
2 In Stock
Mouser Part No
523-SGX-HCL-30
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Electrochemical Hydrogen Chloride 30ppm
2 In Stock
1
£220.36
5
£206.87
10
£203.22
20
£202.65
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Gas Sensor
Multi-Gas
- 20 C
+ 40 C
Air Quality Sensors 4 Series Electrochemical Hydrogen Fluoride 10ppm
SGX-HF-10
Amphenol SGX Sensortech
1:
£148.15
6 In Stock
Mouser Part No
523-SGX-HF-10
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Electrochemical Hydrogen Fluoride 10ppm
6 In Stock
1
£148.15
5
£132.70
10
£126.88
20
£109.10
60
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60
£107.61
100
£103.27
260
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Hydrogen Fluoride
0 PPM
10 PPM
Analog
- 20 C
+ 55 C
Electro-Chemical
Air Quality Sensors 4 Series Oxygen Sensor 25% 2 yr life
360°
+3 images
SGX-4OX
Amphenol SGX Sensortech
1:
£28.01
95 In Stock
Mouser Part No
523-SGX-4OX
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Oxygen Sensor 25% 2 yr life
95 In Stock
1
£28.01
200
£19.71
500
£19.70
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Min.: 1
Mult.: 1
No
Electrochemical 4-series
Oxygen
0 %
25 %
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series CL2 Gas Sensor - 10ppm
SGX-4CL2
Amphenol SGX Sensortech
1:
£95.59
3 In Stock
4 Expected 04/06/2026
Mouser Part No
523-SGX-4CL2
Amphenol SGX Sensortech
Air Quality Sensors 4 Series CL2 Gas Sensor - 10ppm
3 In Stock
4 Expected 04/06/2026
1
£95.59
5
£80.64
10
£66.70
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Chlorine
0 PPM
10 PPM
Analog
- 20 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series Dual-Tox Sensor-500ppm/200ppm
SGX-4DT
Amphenol SGX Sensortech
1:
£61.62
2 In Stock
Mouser Part No
523-SGX-4DT
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Dual-Tox Sensor-500ppm/200ppm
2 In Stock
1
£61.62
5
£53.85
10
£38.11
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Carbon Monoxide + Hydrogen Sulfide
0 PPM
500 PPM, 200 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series H2S Sensor - 100ppm
SGX-4H2S-100
Amphenol SGX Sensortech
1:
£31.69
32 In Stock
Mouser Part No
523-SGX-4H2S-100
Amphenol SGX Sensortech
Air Quality Sensors 4 Series H2S Sensor - 100ppm
32 In Stock
1
£31.69
5
£29.36
10
£28.56
25
£28.42
50
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50
£27.61
100
£26.14
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Hydrogen Sulfide
0 PPM
100 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series NO Gas Sensor - 250ppm
SGX-4NO-250
Amphenol SGX Sensortech
1:
£68.29
4 In Stock
Mouser Part No
523-SGX-4NO-250
Amphenol SGX Sensortech
Air Quality Sensors 4 Series NO Gas Sensor - 250ppm
4 In Stock
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Min.: 1
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Electrochemical 4-series
Nitric Oxide
0 PPM
250 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series Lead free O2 Sensor,>5years
SGX-4OX-ROHS
Amphenol SGX Sensortech
1:
£40.19
11 In Stock
Mouser Part No
523-SGX-4OX-ROHS
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Lead free O2 Sensor,>5years
11 In Stock
1
£40.19
5
£37.32
10
£37.29
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Min.: 1
Mult.: 1
Details
Electrochemical 4-series
Oxygen
0 %
25 %
Analog
- 40 C
+ 60 C
Electro-Chemical
Air Quality Sensors 4 Series Ammonia Sensor - 100ppm
SGX-4NH3-100
Amphenol SGX Sensortech
1:
£54.57
55 On Order
Mouser Part No
523-SGX-4NH3-100
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Ammonia Sensor - 100ppm
55 On Order
View Dates
On Order:
32 Expected 14/05/2026
23 Expected 28/05/2026
Factory Lead Time:
4 Weeks
1
£54.57
5
£50.28
10
£50.14
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Min.: 1
Mult.: 1
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Electrochemical 4-series
Ammonia
0 PPM
100 PPM
Analog
- 40 C
+ 50 C
Electro-Chemical
Air Quality Sensors MEMS Pellistor Gas Sensor, 0-5% volume Flammable Gases, Hazardous Area safe (ATEX certified), Flameproof enclosure Sensing(EX-da certified), with pins
MP7227-R
Amphenol SGX Sensortech
1:
£43.63
19 Expected 05/05/2026
Mouser Part No
523-MP7227-R
Amphenol SGX Sensortech
Air Quality Sensors MEMS Pellistor Gas Sensor, 0-5% volume Flammable Gases, Hazardous Area safe (ATEX certified), Flameproof enclosure Sensing(EX-da certified), with pins
19 Expected 05/05/2026
1
£43.63
5
£38.24
10
£36.93
20
£36.92
60
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60
£36.54
100
£34.93
260
£34.79
500
Quote
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Min.: 1
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MEMS Pellistor
Flammable
0 %
5 %
Analog
1.6 V
3.2 V
- 20 C
+ 60 C
MP7227 Series
Air Quality Sensors 4 Series CO Sensor 1,000ppm
SGX-4CO
Amphenol SGX Sensortech
1:
£26.96
10 Expected 07/05/2026
Mouser Part No
523-SGX-4CO
Amphenol SGX Sensortech
Air Quality Sensors 4 Series CO Sensor 1,000ppm
10 Expected 07/05/2026
1
£26.96
5
£24.77
10
£24.76
20
£23.88
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Min.: 1
Mult.: 1
Details
Electrochemical 4-series
Carbon Monoxide
0 PPM
2000 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series Nitrogen Dioxide Sensor-30ppm
360°
+3 images
SGX-4NO2
Amphenol SGX Sensortech
1:
£34.00
9 On Order
Mouser Part No
523-SGX-4NO2
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Nitrogen Dioxide Sensor-30ppm
9 On Order
1
£34.00
5
£31.31
10
£30.31
20
£29.85
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Min.: 1
Mult.: 1
Details
Electrochemical 4-series
Nitrogen Dioxide
0 PPM
30 PPM
Analog
1.3 V
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 ser O2 sens 0-25% 3 year life
SGX-4OX-EL
Amphenol SGX Sensortech
1:
£41.62
27 Expected 04/06/2026
Mouser Part No
523-SGX-4OX-EL
Amphenol SGX Sensortech
Air Quality Sensors 4 ser O2 sens 0-25% 3 year life
27 Expected 04/06/2026
1
£41.62
5
£38.42
10
£37.22
25
£35.79
50
View
50
£34.82
100
£34.20
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Min.: 1
Mult.: 1
No
Electrochemical 4-series
Oxygen
0 %
25 %
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series H2S sensor - 100ppm
SGX-4H2S
Amphenol SGX Sensortech
1:
£37.39
N/A
Mouser Part No
523-SGX-4H2S
Amphenol SGX Sensortech
Air Quality Sensors 4 Series H2S sensor - 100ppm
N/A
1
£37.39
5
£31.52
10
£29.31
25
£26.60
50
View
50
£24.71
100
£23.58
1,000
Quote
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Min.: 1
Mult.: 1
Details
Gas Sensor
Hydrogen Sulfide (H2S)
- 30 C
+ 50 C