COMET H6320 – Temperature, Humidity, and CO₂ Controller, 2 Relays, RS232

COMET H6320 T+RH+CO₂ Controller 2 Relays RS232      

The COMET H6320 is an intelligent 3-in-1 climate controller with direct control function: it precisely measures temperature, relative humidity, and CO₂ concentration (0–5000 ppm) – and automatically switches two powerful relays (e.g. ventilation, air conditioning, humidifier, alarm siren) when thresholds are exceeded. A 3-color LED indicator (green/yellow/red) and a loud acoustic signal immediately alert to poor air quality or critical climate values.

Perfect for rooms with changing occupancy or sensitive conditions: schools, offices, meeting rooms, production halls, warehouses, greenhouses, or server rooms – the H6320 automatically ensures optimal air conditions while saving energy through demand-based ventilation and air conditioning control.

The RS232 interface with Modbus RTU protocol allows easy integration of the H6320 into building automation or monitoring systems. The maintenance-free NDIR CO₂ sensor with automatic calibration guarantees years of precision. All derived humidity values such as dew point are also available.

Its robust housing, wide operating temperature range of –30 to +60 °C, and 3-year warranty make the H6320 the first choice for professional climate and air quality control.

Why the COMET H6320 is the No. 1 for automatic climate control:

• 3 measured parameters: Temperature + Humidity + CO₂ (0–5000 ppm)
• 2 potential-free relays (2 A / 50 V / 60 VA) – direct control
• 3-color LED indicator + acoustic alarm – instantly visible and audible
• RS232 Modbus RTU – compatible with many systems
• Control by temperature, humidity OR CO₂ – maximally flexible
• Maintenance-free thanks to automatic CO₂ calibration
• Dew point, absolute humidity, etc. integrated
• Wide temperature range –30 to +60 °C
• Easy wall mounting
• 3-year warranty

Technical specifications:

• Temperature: –30 to +80 °C (±0.4 °C), resolution 0.1 °C
• Humidity: 0 to 100 %RH (±2.5 %RH from 5–95 % at 23 °C), resolution 0.1 %RH
• CO₂ measurement range: 0 to 5000 ppm (±50 ppm + 3 % of reading)
• CO₂ resolution: 1 ppm
• Relay outputs: 2 × potential-free, max. 50 V / 2 A / 60 VA
• LED indicator: Green ≤ 1000 ppm | Yellow 1001–1200 ppm | Red ≥ 1201 ppm
• Acoustic alarm: built-in beeper, switchable
• Communication: RS232, Modbus RTU
• Power supply: 9–30 V DC
• Operating temperature: –30 to +60 °C
• Protection class: IP30
• Warranty: 3 years

Perfect for:

• Schools, kindergartens, lecture halls
• Offices, open-plan offices, call centers
• Conference and meeting rooms
• Sports halls, fitness centers
• Restaurants, canteens, hospitality
• Production and storage halls
• Greenhouses and agriculture
• Demand-controlled ventilation per current guidelines

Installation & commissioning – quick and easy

Wall mounting with two screws, connect relays and power, optionally connect RS232 – done. Switching points, hysteresis, and alarm delay can be easily configured via the free TSensor software or directly on the device.

Summary:

• Temperature, humidity, and CO₂ sensor with two output relays
• Green LED on: CO₂ concentration 0 to 1000 ppm
• Yellow LED on: CO₂ concentration 1001 to 1200 ppm
• Red LED on: CO₂ concentration 1201 ppm and higher

Scope of delivery:

• H6320
• Operating manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration