Name: ZADETECTOR GTYQ-S400 fixed Gas Detector（With sound and light alarm）
Brand: ZADETECTOR
Availability: InStock

ZADETECTOR GTYQ-S400 fixed Gas Detector（With sound and light alarm）

ZADETECTOR GTYQ-S400 fixed Gas Detector（With sound and light alarm）

Brand: ZADETECTOR

Category: Testing Instruments

ZADETECTOR GTYQ-QD6390 Independent gas detector

ZADETECTOR GY independent household gas detector

Description

Specifications

SKU: ZADETECTOR GTYQ-S400 fixed Gas Detector（With sound and light alarm）

Sampling mode	NNatural diffusion
Detection range	（3～100%）LEL；0-****PPM
Resolving	1%LEL；1PPM/0.1PPM
Measurement error	±3%LEL；
Status indication	LCD、LED

GTYQ-S400 fixed Gas Detector is a multifunctional intelligent gas detection instrument, the instrument adopts high performance detection devices and micro computer control technology, and combined with automatic mount of advanced manufacturing technology, the products of both the scene buzzing indicating sound and flashing lights , and the real-time display of monitoring gas concentration field.
GTYQ-S400 multi-functional gas detector can be in the air gas concentration signal into the electrical signal display and remote transmission, using three wire 4 to 20mA or four RS485 bus output, with long transmission distance and anti-jamming etc..
GTYQ- S400 fixed Gas Detector can be used in chemical plant, smelting, fire, gas refrigeration and papermaking wastewater treatment, food, rubber, pharmaceuticals, petroleum refining, casting, mining, communications and other municipal fire power to anti explosion, poisoning prevention, anti suffocation in the industrial environment. this model candetect 1-4 different gases。

Functions Features

High Precision Detection

Supports detection of flammable and toxic gases
High-sensitivity sensor with fast response and excellent stability
Suitable for harsh industrial environments

Smart Display & Operation

LCD/LED display for real-time gas concentration and status
Intuitive interface for easy operation and monitoring

Advanced Alarm System

Dual-level alarm (low/high) for early risk warning
Sound and light alarm indication
Relay output for external control systems

Intelligent Functions

Automatic temperature compensation for improved accuracy
Auto zero calibration for stable long-term performance
Sensor fault self-diagnosis with alert notification

Industrial Connectivity

RS485 digital output
Compatible with PLC / DCS systems for remote monitoring

Robust & Safe Design

Explosion-proof structure suitable for hazardous zones
Durable construction for continuous industrial use

Reliable detection, intelligent monitoring, and industrial-grade safety—your trusted gas detection solution.

Technical Parameters

Detection principle	Catalytic, semiconductor, infrared, PID
Detection of gas	Combustible gas;; toxic and harmfulgas; oxygen gas
Sampling mode	Natural diffusion
Detection range	（3～100%）LEL；0-****PPM
Resolving	1%LEL；1PPM/0.1PPM
Measurement error	±3%FS
Status indication	LCD、LED
Debug mode	Infrared remote control
Working temperature	－40℃～70℃（combustible gas）；－20℃～50℃（toxic gas）
Relative humidity	≤93%RH
Explosion-proof	Ex ia IIC T6 Ga
Explosion-proof certificate number	CLEx24.1033X
Protection Grade	IP66
Power	DC24V±10%
Output signal	4～20mA or RS485
Install the screw thread	G1/2
Cable dimension	≥1.5mm2×3；≥1.5mm2×4
Transmit distance	≤1500m
Size	22cm19cm9cm
Weight	≤2000g

Common Gas Parameter listing
Gas detected	Measuring Range	Optional Range	Resolution Rat	Response Time
LEL -combustible gas	0-100%LEL	0-100%VOL（Infrared or catalytic ）	1%LEL/1%vol	≤10s
carbon monoxide	0-1000PPm	0-500/2000/5000PPm	0.1/1PPm	≤10s
TVOC	0-100PPM	0-100PPM	0.1PPm/1PPM	≤15s
hydrogen	0-100%LEL	0-1000PPM	1%LEL/1PPM	≤15s
natural gas	0-100%LEL	0-100%LEL	1%LEL	≤10s
Oxygen-O2	0-30%VOL	0-30%、0-100%VOL	0.1%vol	≤10s
ozone	0-10PPm	0-20、100PPm	0.01PPm/0.1PPM	≤15s
hydrogen sulfide-H2S	0-100PPm	0-50、200、1000PPm	1/0.1PPm	≤10s
Methane-CH4	0-100%LEL	0-100%VOL	1%LEL/1%vol	≤10s
fluorine	0-10PM	0-1、10PPM	1/0.1PPm	≤15s
hydrogen chloride	0-20PPm	0-20/50PPm/100PPM	0.01/0.1PPm	≤15s
Nitrogen-N2	0-30%VOL	0-30%VOL、100%VOL	0.1%LEL/1PPM	≤10s
hydrogen	0-100%LEL	0-1000PPm	1%LEL/0.1PPm	≤15s
chlorine	0-20PPm	0-10、100PPm	0.1PPm	≤15s
ammonia gas	0-100PPm	0-50、500、1000PPm	1/0.1PPm	≤15s
oxynitride	0-20PPm	0-50、1000PPm	0.1/1PPm	≤15s
methanal	0-20PPm	0-50、100PPm	1/0.1PPm	≤15s
sulfur dioxide	0-20PPm	0-50、1000PPm	0.1/1PPm	≤15s
nitric oxide	0-250PPm	0-500、1000PPm	1PPm	≤15s
nitrogen dioxide	0-20PPm	0-50、1000PPm	0.1/1PPm	≤15s
phosphine	0-20PPm	0-20、100PPm	0.1PPm	≤15s
acrylonitrile	0-100PPM	0-100PPm	0.1/1PPm	≤15s
carbon dioxide	0-5000PPm	0-1%/5%/10%VOL(Infrared )	1PPM/0.01%VOL	≤15s
hydrogen fluoride	0-10PPm	0-1、10、50、100PPM	0.01/0.1PPm	≤15s
Xylene/methylbenzene	0-20PPm	0-5、10、50、100PPm	0.01/0.1PPm	≤15s
oxirane	0-100PPm	0-100PPm	1/0.1PPm	≤15s