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

Description
● Integrated 3 sensors in 1 device with optional LCD display
● Measuring temperature, humidity and carbon dioxide
● 2 analog outputs or Modbus RS-485
● Optional analog output + RS-485
● Quick easy installation and maintenance due to well designed
● Cost-efficient and reliable
● Data can be logged and transferred to PC via RS-485 function link free software

Specification
Display：LCD module without backlight
Display readout：Double line character(Up：CO2；Down：T & H take turns)
Digit：CO2：4 digits；T & H：3 digits & 1 decimal
Digit height：17.84 mm
Input：NDIR sensor(CO2) / MEMS sensor(Temp. & humidity)
Measuring range：0 ... 2000 PPM / 0 ... 50℃ / 0 ... 100%RH(Non-condensing)
Analog output：0 ... 5 V / 0 ... 10 V / 4 ... 20 mA
Modbus：RS-485
Signal connection：3-wire
Load resistance：Voltage output：≧10 KΩ / Current output：＜250 Ω
Warm-up time：＜2 min；Stable time 20 min
Temp. influence：T & H：Max. -0.15%RH/℃(0 ... 80°C)
Response time：CO2：t90＜2 min / T & H：t63(15 ... 45°C / 33 ... 75%RH)≦10 sec
Sampling time：CO2：About 6 sec；T & H：About 3 sec
Data logger：Via RS-485 by using eyc free software
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)
Medium：Air
Operating Temp. / Humid.：T&H：0 ... 50°C / 0 ... 100%RH(Non-condensing)
Operating Temp. / Humid.：CO2：0 ... 50°C / 0 ... 85%RH
Storage temperature：-20 ... + 60℃
Power supply：DC 12 ... 36 V & AC 24 V±10%
Current consumption：DC：150 mA / AC：120 mA
Starting current：DC 24 V：250 mA / DC 12 V：550 mA；AC 24 V：230 mA / AC 12 V：250 mA
Electrical connection：Analog & communication：4P Connector
Installation：Indoor and Wall mount
IP rating：IP20
Electrical protection：■ Polarity protection ■ Short-circuit
CE Certification：
Emission
EN 61326-1：2013
CISPR11：2015 Group1 Class B
EN 55011：2009 / A1：2010
Immunity
EN 61326-1：2013
IEC 61000-4-2：2008
IEC 61000-4-3：2006+A1：2007+A2：2010
IEC 61000-4-8：2009
Housing material：PC(PC-110)(UL94V-2)
Weight：100 g

Application
Monitoring the air quality in indoor environments / HVAC / Air conditioning / Museums / Greenhouse / Testing environments work places / Supermarkets / Data centers/ Production warehouses / Indoor public / Places to regulate the ventilation system to save energy