EC4 Electrochemical Gas Sensors

Amphenol SGX Sensortech EC4 Electrochemical Gas Sensors feature 20mm and 20.2mm package sizes and act as drop-in replacements for existing same-size sensors. The EC4 series is available in a broad range of sensing types to detect toxic gases: sulfur dioxide (SO2), carbon monoxide (CO), hydrogen (H2), chlorine (Cl2), hydrogen sulfide (H2S), chlorine dioxide (ClO2), nitric oxide (NO), nitrogen dioxide (NO2), ethylene oxide (C2H4O), and phosphine (PH3). Amphenol SGX Sensortech EC4 Electrochemical Gas Sensors are low power and show good responses to various gas concentrations over a wide range of ambient conditions.

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Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Amphenol SGX Sensortech Air Quality Sensors PS4 Series Solid Polymer Gas Sensor Nitrogen Dioxide 50ppm 20In Stock
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4 Series SO2 Gas Sensor 2000ppm 5In Stock
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Hydrogen Sensor 1000ppm 5In Stock
Min.: 1
Mult.: 1
Amphenol SGX Sensortech Air Quality Sensors 4 Series SO2 Gas Sensor - 20ppm 36In Stock
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4 Series NO Gas Sensor 2000ppm 5In Stock
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4 Series H2S Sensor - 100ppm 32In Stock
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4 Series PH3 Gas Sensor 20ppm 2In Stock
Min.: 1
Mult.: 1

C&K Toggle Switches 5A 120VAC/28VDC ON-OFF-ON SLDR LUG 27In Stock
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4 Series CO Sensor 1,000ppm
10Expected 5/7/2026
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4 Series Electrochemical Chlorine Dioxide 1ppm Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors ELECTROCHEMICAL 4-SERIES Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors 4Series CL O2 Gas Sensor 50ppm N/A
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors PS4 Series Solid Polymer Gas Sensor Chlorine 50ppm Non-Stocked
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors PS4 Series Solid Polymer Gas Sensor Ethylene Oxide 10ppm Non-Stocked
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors PS4 Series Solid Polymer Gas Sensor Ethylene Oxide 1000ppm Non-Stocked
Min.: 1
Mult.: 1

Amphenol SGX Sensortech Air Quality Sensors PS4 Series Solid Polymer Gas Sensor Ethylene Oxide 200ppm Non-Stocked
Min.: 1
Mult.: 1