Combined CO2 detector
Combined CO2 detector with relay
CO2 measurement range: 0–3000 PPM
Temperature measurement range: -30°C to +70°C
Relative humidity range: 0–99%
Indoor air quality controller with CO2 level alarm
NDIR measurement technology with dual IR sensor
Suitable for buildings with alternative energy consumption
Required in heavy vehicles running on fuel as well as diesel
Helps maintain clean air in homes, offices, and factories
Essential for laboratories and clean rooms
Connects to building management systems via relay output
Real-time CO2 readings displayed in PPM on screen
Measures and displays CO2 concentration, temperature, and humidity
High-quality LCD graphic display
Displays time and date
Records alerts to internal memory card (SD card required) with timestamp
Audible and visual alarm for hazardous gas levels
Adjustable alarm thresholds
Activates a dry-contact relay on high gas level
Selectable temperature units: Celsius or Fahrenheit
Built-in buzzer and optical alarm
Adjustable date and time
Mountable on surface, wall, or desktop
Retractable rear stand for tabletop use
SD card slot for data logging
Adjustable MIN/MAX levels
Measurement accuracy: ±50 PPM or 3%
Powered via household or vehicle USB socket
Supplied with power cable, software CD, and user manual
Features and benefits
Fits alarm most systems
Low current draw
High stability and sensitivity
Relay output
Easy maintenance
Technical
Sensors: CO2, temperature, humidity
Operating Voltage: USB level or 5V DC (Mains power adapter)
Current Consumption: 200 mA
Power Connection: Mini connector (USB)
Data Backup: Internal CR1220 lithium battery
Sound alert: Internal buzzer
Output Type: Dry contact (NO/NC)
CO2 Measurement Range: 100–3000 PPM
Warm-up time: 2 minutes (first use for 2 hours)
Sensor Lifespan: Up to 15 years
Built-in Display: Graphic LCD
Enclosure material: ABS
Ingress Protection Rating: IP40
Operating Temperature Range: 0°C to +50°C (32°F – 122°F)
Relative Humidity Range: 10% – 93% non-condensing
Dimensions: 123 × 85 × 30 mm (5.03 x 3.35 x 1.18″)

Optical smoke detector AVP-402 





