4 Series Honeywell

The 4-Series sensors are widely used in both portable and fixed gas detection devices. They are designed to provide high reliability, long operational life, and compatibility with demanding environments. Thanks to their standardized dimensions, they are easy to integrate into a wide variety of detection platforms, ensuring a consistent and proven performance across applications.

Key features

WIDE GAS DETECTION RANGE
Available for oxygen (O₂), toxic gases (e.g. CO, H₂S, NO₂), hydrocarbons, and combustible gases (pellistor type).

ROBUST & STANDARD DESIGN
built to withstand harsh environments while ensuring compatibility across multiple applications.

LONG OPERATIONAL LIFETIME
typical life expectancy of around 2 years in clean air.

HIGH SENSITIVITY & GOOD LINEARITY
proportional output to gas concentration, with minimized cross-sensitivity through internal filtering.

Technical specifications

GAS	TYPE	PART NUMBER	RANGE ppm	DATASHEET
NH3	4NH3LL-100	CLE-1012-40L	100
H2	4HYT	AE204-803	1000
NO	4NT	AF4NT-800	250
HCN	4HN	AJ200-800	50
SO2	4S Rev.2	2112B2015R	20
H2S	4HS+	2112B2025	100
H2S	4HS/LM		100
H2S	4H	AC200-800	100
H2S	4HLM	AC206-800	100
C3H3N	4AN	AI200-800	80
CL2	4CL	AH200-800	10
CO	2CF3	AB231-801	500
CO	4CF+	2112B2005	500
CO	4MF	2112B2061	40000
CO	4LXH	2112B3008	200
CO	X	2112B3001	1000
CO	2E	2112B3000	500
CO	4CM	2112B2055R	2000
CO	4F	2112B2060R	10000
C2H4O	4ETO	AT204-800	20
NO2	4ND	AG200-800	20
PH3	4PH-Fast	AP210-800	5