Gas ( CO / CO2 ) / Air quality

Features : Measuring up to 10000 PPM.Voltage or current output and optional RS-485, and display.Free software configuration
Input : NDIR sensor
Output : 4 ... 20mA / 0 ... 20mA / 0 ... 10V / 0 ... 5V / 0 ... 1V
linear accuracy ( at +25 °C ) :
400 ... 2000 PPM：± 40 ppm ± 3 % of reading /
other : ± 50 PPM ± 3 % of reading
measuring range : 2000 / 5000 / 10000 PPM
Display : Optional

Features : Electrochemical Sensor with a long life,good long term stability and high accuracy. It has lower sensitivity to interferant gases.
Input : Electrochemistry CO Sensor
Output : 0~1V / 0~5V / 0~10V / 1~5V / 0~20mA /
4~20mA ; RS-485；RS-485 & analogue
linear accuracy ( at 25 ± 2 ℃, 40 ± 10 % RH ) :
± 3 % of F.S. ( best zero-point )
Measuring range : on request

Features : Real-Time Data of PM2.5, CO2, temperature & humidity. / Anti-condensation and nicer long-term stability.
Input : Temp.&Humidity MEMS / CO2 : NDIR / PM2.5: Infrared LED
Output : RS-485
Accuracy : ± 0.5 ℃ / ± 5 %RH ( at 30 ... 80 %RH ) /
CO2 ± 40 PPM ± 3 % of Reading / PM2.5 ± 10 μg/m3 ± 5% of Reading
Measuring Range : Temp.: 0 ... 50 ℃ / Humidity :0 ... 100 %RH ( non-cond. ) /
CO2: 0 ... 2000 PPM / PM2.5: 0 ... 500 μg/m3
Display : Optional

Input：CO2 NDIR sensor / Temp. & humidity MEMS sensor
Output：0 ... 5 V / 0 ... 10 V / 4 ... 20 mA
Accuracy(at +25°C；DC 24 V；101.3 kPa)：
CO2±40 PPM±3% of reading / Temperature±0.5°C / Humidity±5%RH(30 ... 80% RH)
Measuring range：0 ... 2000 PPM / 0 ... 50℃ / 0 ... 100%RH(Non-condensing)
Display：Optional

Input：Data can be logged and transferred to pc via RS-485 function link free software. 1 analog output or Modbus RS-485. Optional LCD display.
Input：NDIR sensor
Output：0 ... 5 V / 0 ... 10 V / 4 ... 20 mA
Accuracy(at+25°C；101.3 kPa)：±40 PPM±3% of reading
Measuring range：0 ... 2000 PPM
Display : Optional