Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm
SGX-4SO2
Amphenol SGX Sensortech
1:
HK$758.95
32 In Stock
Mouser Part No
523-SGX-4SO2
Amphenol SGX Sensortech
Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm
32 In Stock
1
HK$758.95
5
HK$707.50
10
HK$686.95
25
HK$662.37
50
HK$645.52
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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 Ozone Sensor 20ppm
SGX-4O3-20
Amphenol SGX Sensortech
1:
HK$906.34
22 In Stock
Mouser Part No
523-SGX-4O3-20
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Electrochemical Ozone Sensor 20ppm
22 In Stock
1
HK$906.34
5
HK$746.46
10
HK$671.49
20
HK$639.76
60
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60
HK$614.86
100
HK$592.25
260
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Gas Sensor
Ozone (O3)
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series CO Sensor - 1,000ppm
SGX-4CO-LC
Amphenol SGX Sensortech
1:
HK$477.66
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
HK$477.66
5
HK$458.68
10
HK$243.39
100
HK$223.75
250
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250
HK$222.35
500
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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 High Conc CO Sensor - 10000ppm
SGX-4CO-10K
Amphenol SGX Sensortech
1:
HK$756.65
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
HK$756.65
5
HK$754.10
10
HK$481.86
250
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250
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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 Ammonia Sensor - 300ppm
SGX-4NH3-300
Amphenol SGX Sensortech
1:
HK$1,121.78
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
HK$1,121.78
5
HK$954.51
10
HK$712.67
100
HK$685.05
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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:
HK$555.51
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
HK$555.51
5
HK$542.85
10
HK$354.69
100
HK$345.49
250
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250
HK$342.94
500
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Electrochemical 4-series
Nitrogen Dioxide
0 PPM
20 PPM
Analog
- 30 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:
HK$382.23
19 In Stock
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 In Stock
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MEMS Pellistor
Flammable
0 %
5 %
Analog
1.6 V
3.2 V
- 20 C
+ 60 C
MPEL
Air Quality Sensors 4 Series Nitrogen Dioxide Sensor-30ppm
360°
+3 images
SGX-4NO2
Amphenol SGX Sensortech
1:
HK$387.16
29 In Stock
Mouser Part No
523-SGX-4NO2
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Nitrogen Dioxide Sensor-30ppm
29 In Stock
1
HK$387.16
5
HK$356.58
10
HK$345.16
20
HK$331.51
50
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50
HK$321.65
100
HK$301.67
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Mult.: 1
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Electrochemical 4-series
Nitrogen Dioxide
0 PPM
30 PPM
Analog
1.3 V
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series ETO Gas Sensor 20ppm
SGX-4ETO
Amphenol SGX Sensortech
1:
HK$911.60
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
HK$911.60
5
HK$836.96
10
HK$712.76
25
HK$712.67
50
View
50
HK$703.96
100
HK$674.12
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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 Electrochemical Bromine 5ppm
SGX-BR2-5
Amphenol SGX Sensortech
1:
HK$2,158.82
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
HK$2,158.82
5
HK$2,022.28
10
HK$1,974.61
20
HK$1,974.44
100
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100
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Gas Sensor
Multi-Gas
- 20 C
+ 40 C
Electro-Chemical
Air Quality Sensors 4 Series Electrochemical Fluorine 5ppm
SGX-F2-5
Amphenol SGX Sensortech
1:
HK$2,160.05
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
HK$2,160.05
5
HK$2,025.65
10
HK$1,985.46
20
HK$1,696.36
60
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60
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Electrochemical 4-series
Fluorine
0 PPM
5 PPM
Analog
- 20 C
+ 40 C
Electro-Chemical
Air Quality Sensors 4 Series Ammonia Sensor - 100ppm
SGX-4NH3-100
Amphenol SGX Sensortech
1:
HK$621.35
51 In Stock
Mouser Part No
523-SGX-4NH3-100
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Ammonia Sensor - 100ppm
51 In Stock
1
HK$621.35
5
HK$575.15
10
HK$557.97
100
HK$515.07
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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 4 Series Ammonia Sensor - 1000ppm
SGX-4NH3-1000
Amphenol SGX Sensortech
1:
HK$804.08
40 In Stock
Mouser Part No
523-SGX-4NH3-1000
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Ammonia Sensor - 1000ppm
40 In Stock
1
HK$804.08
5
HK$746.38
10
HK$724.84
50
HK$685.05
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Electrochemical 4-series
Ammonia
0 PPM
1000 PPM
Analog
- 40 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 ser O2 sens 0-25% 3 year life
SGX-4OX-EL
Amphenol SGX Sensortech
1:
HK$495.42
43 In Stock
Mouser Part No
523-SGX-4OX-EL
Amphenol SGX Sensortech
Air Quality Sensors 4 ser O2 sens 0-25% 3 year life
43 In Stock
1
HK$495.42
5
HK$457.69
10
HK$443.55
25
HK$426.62
50
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50
HK$415.03
100
HK$394.07
500
Quote
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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:
HK$1,046.57
5 In Stock
Mouser Part No
523-SGX-4CL2
Amphenol SGX Sensortech
Air Quality Sensors 4 Series CL2 Gas Sensor - 10ppm
5 In Stock
1
HK$1,046.57
5
HK$946.20
10
HK$712.67
100
HK$685.05
Buy
Min.: 1
Mult.: 1
Details
Electrochemical 4-series
Chlorine
0 PPM
10 PPM
Analog
- 20 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series CO Sensor 1,000ppm
SGX-4CO
Amphenol SGX Sensortech
1:
HK$311.21
7 In Stock
Mouser Part No
523-SGX-4CO
Amphenol SGX Sensortech
Air Quality Sensors 4 Series CO Sensor 1,000ppm
7 In Stock
1
HK$311.21
5
HK$285.97
10
HK$285.89
20
HK$259.92
50
View
50
HK$255.64
100
HK$250.46
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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 Dual-Tox Sensor-500ppm/200ppm
SGX-4DT
Amphenol SGX Sensortech
1:
HK$688.18
1 In Stock
Mouser Part No
523-SGX-4DT
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Dual-Tox Sensor-500ppm/200ppm
1 In Stock
1
HK$688.18
5
HK$572.85
10
HK$417.17
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Min.: 1
Mult.: 1
Details
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:
HK$318.69
22 In Stock
Mouser Part No
523-SGX-4H2S-100
Amphenol SGX Sensortech
Air Quality Sensors 4 Series H2S Sensor - 100ppm
22 In Stock
1
HK$318.69
5
HK$292.88
10
HK$283.26
25
HK$271.75
250
HK$268.47
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Min.: 1
Mult.: 1
Details
Electrochemical 4-series
Hydrogen Sulfide
0 PPM
100 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:
HK$387.82
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
HK$387.82
5
HK$357.16
10
HK$345.82
25
HK$332.09
50
View
50
HK$322.80
100
HK$282.77
250
HK$281.45
500
Quote
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Min.: 1
Mult.: 1
Details
Electro-Chemical
H2S
0 PPM
300 PPM
Analog
- 30 C
+ 50 C
Electro-Chemical
Air Quality Sensors 4 Series NO Gas Sensor - 250ppm
SGX-4NO-250
Amphenol SGX Sensortech
1:
HK$777.69
9 In Stock
Mouser Part No
523-SGX-4NO-250
Amphenol SGX Sensortech
Air Quality Sensors 4 Series NO Gas Sensor - 250ppm
9 In Stock
1
HK$777.69
5
HK$721.55
25
HK$685.05
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Min.: 1
Mult.: 1
Details
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:
HK$461.55
6 In Stock
Mouser Part No
523-SGX-4OX-ROHS
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Lead free O2 Sensor,>5years
6 In Stock
1
HK$461.55
5
HK$428.51
10
HK$417.82
50
HK$390.78
100
HK$383.13
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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 Electrochemical Hydrogen Fluoride 10ppm
SGX-HF-10
Amphenol SGX Sensortech
1:
HK$1,621.97
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
HK$1,621.97
5
HK$1,452.97
10
HK$1,389.18
20
HK$1,194.45
60
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60
HK$1,178.17
100
Quote
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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 Electrochemical Hydrogen Chloride 30ppm
SGX-HCL-30
Amphenol SGX Sensortech
1:
HK$2,211.51
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
HK$2,211.51
5
HK$2,064.54
20
HK$2,064.45
60
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60
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Gas Sensor
Multi-Gas
- 20 C
+ 40 C
Electro-Chemical
Air Quality Sensors 4 Series Oxygen Sensor 25% 2 yr life
360°
+3 images
SGX-4OX
Amphenol SGX Sensortech
1:
HK$292.55
200 On Order
Mouser Part No
523-SGX-4OX
Amphenol SGX Sensortech
Air Quality Sensors 4 Series Oxygen Sensor 25% 2 yr life
200 On Order
View Dates
On Order:
60 Expected 27/8/2026
140 Expected 18/9/2026
Factory Lead Time:
10 Weeks
1
HK$292.55
5
HK$268.63
20
HK$244.05
50
HK$240.02
100
View
100
HK$235.09
500
Quote
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Min.: 1
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No
Electrochemical 4-series
Oxygen
0 %
25 %
Analog
- 30 C
+ 50 C
Electro-Chemical