Air Quality Sensors 4 Series Electrochemical Ozone Sensor 20ppm
SGX-4O3-20
Amphenol SGX Sensortech
1:
€99.20
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
€99.20
5
€88.18
10
€71.23
20
€67.91
60
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60
€65.28
100
€62.91
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:
€225.89
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
€225.89
5
€211.58
10
€206.59
20
€206.58
60
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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:
€225.90
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
€225.90
5
€211.84
10
€206.74
20
€190.95
60
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60
€190.72
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:
€79.16
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
€79.16
5
€66.78
10
€50.41
100
€50.27
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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:
€49.97
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
€49.97
5
€47.99
10
€25.46
100
€24.13
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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:
€55.57
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
€55.57
5
€44.97
10
€33.73
100
€29.94
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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:
€117.36
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
€117.36
5
€99.86
10
€76.40
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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:
€58.12
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
€58.12
5
€56.80
10
€37.11
100
€36.19
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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:
€96.62
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
€96.62
5
€88.99
10
€76.40
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Min.: 1
Mult.: 1
Details
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:
€80.89
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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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:
€76.73
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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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:
€252.42
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
€252.42
5
€236.96
10
€232.78
20
€232.13
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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:
€169.70
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
€169.70
5
€152.01
10
€145.34
20
€124.97
60
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60
€123.26
100
€118.29
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:
€32.08
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
€32.08
200
€22.58
500
€22.57
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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:
€109.50
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
€109.50
5
€92.37
10
€76.40
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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:
€70.58
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
€70.58
5
€61.68
10
€43.65
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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:
€36.30
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
€36.30
5
€33.63
10
€32.71
25
€32.55
50
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50
€31.63
100
€29.94
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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:
€78.23
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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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:
€46.04
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
€46.04
5
€42.75
10
€42.72
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Min.: 1
Mult.: 1
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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:
€62.51
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
€62.51
5
€57.59
10
€57.43
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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:
€49.98
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
€49.98
5
€43.80
10
€42.30
20
€42.29
60
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60
€41.86
100
€40.01
260
€39.85
500
Quote
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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:
€30.88
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
€30.88
5
€28.37
10
€28.36
20
€27.35
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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:
€38.95
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
€38.95
5
€35.87
10
€34.72
20
€34.19
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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:
€47.68
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
€47.68
5
€44.01
10
€42.64
25
€41.00
50
View
50
€39.89
100
€39.17
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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:
€42.83
N/A
Mouser Part No
523-SGX-4H2S
Amphenol SGX Sensortech
Air Quality Sensors 4 Series H2S sensor - 100ppm
N/A
1
€42.83
5
€36.11
10
€33.57
25
€30.47
50
View
50
€28.31
100
€27.01
1,000
Quote
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Min.: 1
Mult.: 1
Details
Gas Sensor
Hydrogen Sulfide (H2S)
- 30 C
+ 50 C