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$1,974.53
60
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60
Quote
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Min.: 1 Mult.: 1
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Air Quality Sensors Dual Channel CO2 Mod 0-2000 PPM
T6615
Amphenol Advanced Sensors
1:
HK$860.14
10 In Stock
Mouser Part No 527-T6615
Amphenol Advanced Sensors
Air Quality Sensors Dual Channel CO2 Mod 0-2000 PPM
10 In Stock
1
HK$860.14
5
HK$798.90
10
HK$723.28
20
HK$695.82
60
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60
HK$690.97
100
HK$681.36
260
Quote
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Min.: 1 Mult.: 1
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Air Quality Meters & Gas Detectors HYDROGEN SULFIDE INSPECTOR
202314-0001
Sensorcon
1:
HK$1,548.48
7 In Stock
Mouser Part No 538-INS-H2S-01
Sensorcon
Air Quality Meters & Gas Detectors HYDROGEN SULFIDE INSPECTOR
7 In Stock
1
HK$1,548.48
5
HK$1,306.16
10
HK$1,214.01
25
HK$1,102.06
50
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50
HK$1,048.63
100
Quote
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Min.: 1 Mult.: 1
Air Quality Sensors OEM INDUCT MOUNT 3 METER CABLE 5V
T8031-3M-5V
Amphenol Advanced Sensors
1:
HK$1,622.63
6 In Stock
Mouser Part No 527-T8031-3M-5V
Amphenol Advanced Sensors
Air Quality Sensors OEM INDUCT MOUNT 3 METER CABLE 5V
6 In Stock
1
HK$1,622.63
5
HK$1,209.24
10
HK$1,208.01
20
HK$1,183.43
50
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50
HK$1,176.86
100
Quote
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Min.: 1 Mult.: 1
Air Quality Sensors OEM INDUCT MOUNT I METER CABLE 5V
T8031-1M-5V
Amphenol Advanced Sensors
1:
HK$1,328.68
5 In Stock
Mouser Part No 527-T8031-1M-5V
Amphenol Advanced Sensors
Air Quality Sensors OEM INDUCT MOUNT I METER CABLE 5V
5 In Stock
1
HK$1,328.68
5
HK$1,193.38
10
HK$1,193.30
20
HK$1,157.46
50
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50
HK$1,145.37
100
Quote
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Min.: 1 Mult.: 1
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Air Quality Sensors PM, RH & T, CO2 sensor platform
SEN63C-SIN-T
Sensirion
1:
HK$272.90
324 In Stock
420 Expected 11/11/2026
New Product
Mouser Part No 403-SEN63C-SIN-T
New Product
Sensirion
Air Quality Sensors PM, RH & T, CO2 sensor platform
324 In Stock
420 Expected 11/11/2026
1
HK$272.90
5
HK$250.38
10
HK$242.00
25
HK$231.89
50
View
50
HK$223.34
100
HK$217.17
250
HK$214.62
420
HK$214.54
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Min.: 1 Mult.: 1
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Air Quality Sensors XENSIV Integrated Thermal Conductivity Gas Sensor ASIL B
TCIBXTMA1
Infineon Technologies
1:
HK$108.83
817 In Stock
New Product
Mouser Part No 726-TCIBXTMA1
New Product
Infineon Technologies
Air Quality Sensors XENSIV Integrated Thermal Conductivity Gas Sensor ASIL B
817 In Stock
1
HK$108.83
5
HK$108.34
10
HK$85.73
25
HK$79.98
100
View
1,800
HK$70.12
100
HK$78.67
500
HK$70.77
1,000
HK$70.12
1,800
HK$70.12
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Min.: 1 Mult.: 1
Reel :1,800
Details
Air Quality Sensors 4 SERIES NDIR HC SENSOR
C1N-2654-40D
Honeywell
1:
HK$2,849.22
24 In Stock
New Product
Mouser Part No 785-C1N-2654-40D
New Product
Honeywell
Air Quality Sensors 4 SERIES NDIR HC SENSOR
24 In Stock
1
HK$2,849.22
5
HK$2,827.68
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Min.: 1 Mult.: 1
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Air Quality Meters & Gas Detectors H2S INSPECTOR INDUST & PUMP KIT
202374-0001
Molex
1:
HK$1,709.92
9 In Stock
Factory Special Order
Mouser Part No 538-KIT-INS-H2S-02
Factory Special Order
Molex
Air Quality Meters & Gas Detectors H2S INSPECTOR INDUST & PUMP KIT
9 In Stock
1
HK$1,709.92
10
View
10
HK$1,492.42
25
HK$1,438.91
50
HK$1,428.23
500
Quote
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Min.: 1 Mult.: 1
Air Quality Sensors This is a simple-to-use liquefied petroleum gas (LPG) sensor suitable for measuring LPG (primarily propane and butane) concentrations in the air. The MQ-6 can detect gas concentrations from 200 to 10000 ppm.This sensor has a high sensitivity and fa
SEN-09405
SparkFun
1:
HK$55.49
322 In Stock
Mouser Part No 474-SEN-09405
SparkFun
Air Quality Sensors This is a simple-to-use liquefied petroleum gas (LPG) sensor suitable for measuring LPG (primarily propane and butane) concentrations in the air. The MQ-6 can detect gas concentrations from 200 to 10000 ppm.This sensor has a high sensitivity and fa
322 In Stock
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Min.: 1 Mult.: 1
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Air Quality Sensors Carbon Monoxide Sensor MQ-7
SEN-09403
SparkFun
1:
HK$64.77
21 In Stock
Mouser Part No 474-SEN-09403
SparkFun
Air Quality Sensors Carbon Monoxide Sensor MQ-7
21 In Stock
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Min.: 1 Mult.: 1
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Air Quality Sensors The MQ-9B is a CO and CH gas-detection sensor from Winsen. The sensing material of the MQ-9B is SnO2 which has a low conductivity in clean air. It detects carbon monoxide (1.5V) by cycling between high and low temperatures. The sensor s conduct
SEN-17050
SparkFun
1:
HK$53.43
14 In Stock
Mouser Part No 474-SEN-17050
SparkFun
Air Quality Sensors The MQ-9B is a CO and CH gas-detection sensor from Winsen. The sensing material of the MQ-9B is SnO2 which has a low conductivity in clean air. It detects carbon monoxide (1.5V) by cycling between high and low temperatures. The sensor s conduct
14 In Stock
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Min.: 1 Mult.: 1
Air Quality Sensors XENSIV Integrated Thermal Conductivity Refrigerant Gas Sensor
TCIRXTMA1
Infineon Technologies
1:
HK$111.30
112 In Stock
New Product
Mouser Part No 726-TCIRXTMA1
New Product
Infineon Technologies
Air Quality Sensors XENSIV Integrated Thermal Conductivity Refrigerant Gas Sensor
112 In Stock
1
HK$111.30
5
HK$93.87
10
HK$87.21
25
HK$79.16
50
View
1,800
HK$59.02
50
HK$73.57
100
HK$68.39
500
HK$61.24
1,000
HK$59.02
1,800
HK$59.02
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Min.: 1 Mult.: 1
Reel :1,800
Details
Air Quality Sensors Modbus Gas and TrueVOC Sensor
MS-0203-01A
Bridgetek
1:
HK$1,257.25
2 In Stock
1 On Order
New Product
Mouser Part No 895-MS-0203-01A
New Product
Bridgetek
Air Quality Sensors Modbus Gas and TrueVOC Sensor
2 In Stock
1 On Order
1
HK$1,257.25
5
HK$1,060.54
10
HK$985.66
25
HK$894.83
50
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50
HK$863.35
100
HK$843.87
250
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Air Quality Meters & Gas Detectors HYDROGEN SULFIDE INSPECTOR IND PRO
202316-0001
Molex
1:
HK$1,567.80
6 In Stock
Factory Special Order
Mouser Part No 538-INS-H2S-03
Factory Special Order
Molex
Air Quality Meters & Gas Detectors HYDROGEN SULFIDE INSPECTOR IND PRO
6 In Stock
1
HK$1,567.80
10
View
10
HK$1,342.49
25
HK$1,294.32
50
HK$1,284.79
100
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Air Quality Sensors High CO2 accuracy with comprehensive building standard compatibility, builds on the photoacoustic NDIR sensing principle
SCD43-D-R2
Sensirion
1:
HK$173.69
924 In Stock
2,400 On Order
New Product
Mouser Part No 403-SCD43-D-R2
New Product
Sensirion
Air Quality Sensors High CO2 accuracy with comprehensive building standard compatibility, builds on the photoacoustic NDIR sensing principle
924 In Stock
2,400 On Order
View Dates
Stock:
924 Can Dispatch Immediately
On Order:
1,200 Expected 30/9/2026
1,200 Expected 7/10/2026
Factory Lead Time:
13 Weeks
1
HK$173.69
5
HK$158.56
10
HK$152.89
25
HK$146.15
50
View
600
HK$127.99
50
HK$141.55
100
HK$138.92
600
HK$127.99
1,200
Quote
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Min.: 1 Mult.: 1
Reel :600
Details
Air Quality Sensors A2L Refrigerant Sensor, R-32, R-454B 8 Pin, 24V, RS485, Relay
SGD43S-M3-S5
Sensirion
1:
HK$471.01
398 In Stock
New Product
Mouser Part No 403-SGD43S-M3-S5
New Product
Sensirion
Air Quality Sensors A2L Refrigerant Sensor, R-32, R-454B 8 Pin, 24V, RS485, Relay
398 In Stock
1
HK$471.01
5
HK$434.76
10
HK$408.86
25
HK$397.44
50
View
50
HK$391.27
100
HK$375.65
200
HK$375.57
600
Quote
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Min.: 1 Mult.: 1
Air Quality Sensors A2L Refrigerant Sensor, R-454A/R-454C/R-455A 8 Pin, 24V, RS485, Relay
SGD43S-M3-S7
Sensirion
1:
HK$474.62
196 In Stock
600 Expected 11/11/2026
New Product
Mouser Part No 403-SGD43S-M3-S7
New Product
Sensirion
Air Quality Sensors A2L Refrigerant Sensor, R-454A/R-454C/R-455A 8 Pin, 24V, RS485, Relay
196 In Stock
600 Expected 11/11/2026
1
HK$474.62
5
HK$438.13
10
HK$412.07
25
HK$400.64
50
View
50
HK$394.40
100
HK$379.76
200
HK$379.68
Buy
Min.: 1 Mult.: 1
Air Quality Sensors XENSIV TCI Integrated Thermal Conductivity Gas Sensor
TCIXTMA1
Infineon Technologies
1:
HK$88.69
1,684 In Stock
New Product
Mouser Part No 726-TCIXTMA1
New Product
Infineon Technologies
Air Quality Sensors XENSIV TCI Integrated Thermal Conductivity Gas Sensor
1,684 In Stock
1
HK$88.69
5
HK$80.39
10
HK$77.27
25
HK$73.57
50
View
1,800
HK$57.70
50
HK$71.02
100
HK$68.55
250
HK$68.47
500
HK$63.05
1,000
HK$57.70
1,800
HK$57.70
Buy
Min.: 1 Mult.: 1
Reel :1,800
Details
Air Quality Sensors HYDROGEN LEAK DETECTOR
HLD-111-111-001
Honeywell
1:
HK$1,055.78
91 In Stock
New Product
Mouser Part No 785-HLD-111-111-001
New Product
Honeywell
Air Quality Sensors HYDROGEN LEAK DETECTOR
91 In Stock
1
HK$1,055.78
5
HK$1,008.43
10
HK$960.75
30
HK$915.63
60
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60
HK$906.99
120
Quote
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Min.: 1 Mult.: 1
Details
Air Quality Sensors STC31-C, Thermal Conductivity Sensor for CO2IC
STC31-C-R3
Sensirion
1:
HK$285.65
688 In Stock
1,200 Expected 25/11/2026
Mouser Part No 403-STC31-C-R3
Sensirion
Air Quality Sensors STC31-C, Thermal Conductivity Sensor for CO2IC
688 In Stock
1,200 Expected 25/11/2026
Alternative Packaging
1
HK$285.65
5
HK$262.22
10
HK$253.50
25
HK$243.07
50
View
400
HK$217.75
50
HK$231.06
100
HK$230.98
250
HK$217.83
400
HK$217.75
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Min.: 1 Mult.: 1
Reel :400
Details
Air Quality Sensors ENS161-BLGT LGA9 T&R 1K5 - Digital Metal-Oxide Multi-Gas Sensor with permanent and low power mode of operation
ENS161-BLGT LGA9 T&R 1k5
ScioSense
1:
HK$61.32
1,493 In Stock
Mouser Part No 135-ENS161BGLTT&R1K5
ScioSense
Air Quality Sensors ENS161-BLGT LGA9 T&R 1K5 - Digital Metal-Oxide Multi-Gas Sensor with permanent and low power mode of operation
1,493 In Stock
1
HK$61.32
5
HK$54.58
10
HK$50.80
25
HK$41.84
50
View
1,500
HK$33.37
50
HK$40.28
100
HK$38.80
500
HK$35.35
1,000
HK$33.78
1,500
HK$33.37
Buy
Min.: 1 Mult.: 1
Reel :1,500
Details
Air Quality Sensors Senseair S88 Residential
004-1-0100
Senseair
1:
HK$160.62
348 In Stock
Mouser Part No 812-004-1-0100
Senseair
Air Quality Sensors Senseair S88 Residential
348 In Stock
1
HK$160.62
5
HK$146.56
10
HK$141.30
25
HK$134.97
50
View
50
HK$130.70
100
HK$127.99
250
HK$121.90
500
HK$115.41
1,000
Quote
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Min.: 1 Mult.: 1
Details
Air Quality Sensors Combined gas, humidity, pressure and temperature sensor
BME688
Bosch Sensortec
1:
HK$71.10
3,191 In Stock
30,000 On Order
Mouser Part No 262-BME688
Bosch Sensortec
Air Quality Sensors Combined gas, humidity, pressure and temperature sensor
3,191 In Stock
30,000 On Order
View Dates
Stock:
3,191 Can Dispatch Immediately
On Order:
18,000 Expected 21/10/2026
12,000 Expected 28/10/2026
Factory Lead Time:
12 Weeks
1
HK$71.10
5
HK$64.28
10
HK$61.73
25
HK$58.69
50
View
6,000
HK$47.43
50
HK$56.64
100
HK$54.75
500
HK$52.20
1,000
HK$47.43
6,000
HK$47.43
Buy
Min.: 1 Mult.: 1
Reel :6,000
Details
Air Quality Sensors IR Sensor for NDIR Gas Sensing
AK9730AJF21
Asahi Kasei Microdevices
1:
HK$96.50
1,191 In Stock
Mouser Part No 412-AK9730AJF21
Asahi Kasei Microdevices
Air Quality Sensors IR Sensor for NDIR Gas Sensing
1,191 In Stock
1
HK$96.50
5
HK$87.63
10
HK$84.26
25
HK$80.23
50
View
1,000
HK$69.46
50
HK$77.51
100
HK$75.46
500
HK$72.66
1,000
HK$69.46
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
Hong Kong