AG-GDT-340 Toxic Gas Detectors
Fixed Carbon Dioxide Detector
Explosion-proof NDIR CO₂ detector for occupied spaces where CO₂ is generated or stored, 0–5000 ppm
4–20 mA Modbus RTU
Features
- NDIR sensing does not suffer the drift and poisoning that limits electrochemical toxic cells — no bump-gas sensor replacement schedule
- Two field-adjustable alarm stages drive ventilation boost and area evacuation independently
- Reports directly to BMS or PLC alongside other fixed gas detection
Enquire about this product
No forms — email directly to sales@agcontrolli.com
24-month warranty · Technical support included
Specifications
| Target Gas | Carbon dioxide (CO₂) |
| Measuring Range | 0–5000 ppm (other ranges on request) |
| Sensor Technology | Non-dispersive infrared (NDIR) |
| Alarm Stages | Two, field-adjustable |
| Output Signal | 4–20 mA and RS-485 Modbus RTU — confirm configuration at order |
| Supply Voltage | 24 V DC |
| Ambient Temperature | −20 to +60°C |
| Humidity | 15–90 % RH, non-condensing |
| Explosion Protection | Ex d IIC T6 |
| Cable Run | Up to 1000 m |
| Display | LCD showing live concentration |
| Certifications | Manufacturer states CE, ATEX |
Applications
- Beverage, brewery and fermentation CO₂ storage and dispensing rooms
- Cold stores and controlled-atmosphere storage using CO₂
- Confined spaces and pits where CO₂ can displace oxygen
- Fire-suppression CO₂ cylinder stores
Compatible Platforms
Reliable Controls MACH-ProSysSiemens Desigo CCHoneywell EBISchneider EcoStruxureJohnson Controls Metasys
Works with any BMS that accepts 4–20 mA / Modbus RTU signals.
Other Gas Detection
AG-GDC-100
Fixed Combustible Gas Detector
Explosion-proof catalytic bead detector for methane and combustible gases, 0–100 % LEL
4–20 mAModbus RTU
AG-GDT-300 Fixed Carbon Monoxide Detector
Explosion-proof electrochemical CO detector for occupied plant rooms, 0–1000 ppm
4–20 mAModbus RTU
AG-GDO-400 Fixed Oxygen Deficiency Monitor
Oxygen depletion and enrichment monitoring where nitrogen, argon or CO₂ is stored, 0–30 % vol
4–20 mAModbus RTU
Ready to specify?
Send us your pipe size, media, range and protocol — we'll confirm availability and lead time.
sales@agcontrolli.com