Gas ( CO / CO2 ) / Air quality

Measuring ranges
Oxygen concentration: 0.0 ... 100.0 % O2 (gaseous)
OXY 3690 MP: recommended range 0.2 ... 35.0 vol.% O2 (reduced precision outside)
OXY 3690 MP-LO: also suitable for values ≤0.2 vol.% O2
Temperature: -20.0 ... 50.0 °C
Accuracy device (at nominal temperature 25 °C):
Oxygen: ±0.1 % ±1 digit
Temperature: ±0.1 °C ±1 digit
Output signal (O2 only): 4 ... 20 mA (2-wire - standard), 0 ... 10 V (3-wire - option)

Sensor type：NDIR sensor
Output：4 ... 20 mA / 0 ... 10 V
linear accuracy(at +25°C)：400 ... 2000 PPM：±40 PPM ±3% of reading / 2000 ... 10000 PPM：±250 PPM ±3% of reading
Measuring range : 2000 / 5000 / 10000 PPM
Display : Optional

Feature：Electrochemical Sensor with a long life, good long term stability and high accurac
Sensor type：Electrochemistry CO Sensor

Output：0 ... 10 V / 4 ... 20 mA / RS-485 / RS-485 & analog
linear accuracy (at25 ±2℃, 40 ±10% RH )：± 3 % of F.S. (Best zero-point)
Measuring range
：On request
Operating range：0 ... 500 PPM

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 ... 10 V / 4 ... 20 mA
Accuracy(at+25°C；101.3 kPa)：±40 PPM±3% of reading
Measuring range：0 ... 2000 PPM
Display : Optional

Input：CO2 NDIR sensor / Temp. & humidity MEMS sensor
Output：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)

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