Real-time display of CO2 concentration, temperature, humidity and present time, and the environment state by image expression

1. Technical Data:

Market Analysis	Application	Agriculture
		Home, Building, Commercial place etc.
	Brand	Harwest
working specifications	Work Temperature	0°C～50°C
	Work Humidity	0～95%RH
	Storage Temperature	-20°C～60°C
	Voltage	DC12V/DC24V or AC220V
	Current	60mA in average
	LCD display	CO2: 0～9999ppm
		Temperature: -20°C～60°C
		Humidity: 0～99%RH
		time:24-hour system:  HH:MM:SS
	Repeatability	<±100ppm
	Life	>15 years
CO2 detection	Sensor	NDIR
	Detection range	0～9999ppm（optional）
	Accuracy	±40ppm ±3% reading
	Warm-up time	120s
	Response time(T90)	≤60s
Temperature detection	detection range	-20°C～60°C
	detection accuracy	±0.1°C
Humidity detection	detection range	0～99%RH
	detection accuracy	±1%RH
Output	Switch output (several groups)	Relay output（optional）
	Linear analog output	(0.8V～4V) linear output
	RS-485	Individual address setting(optional)
	MAX232	Records for 365 days available to check(optional)
	4-20mA
Outside	Protection Grade	IP65
Other function	Button	4 Buttons
	Alarm	Intermittent multi-level alarm
	Detection range setting (Adjustable)	0～50000ppm(default) 0～10000ppm(programmable)

2. Main functions:

2.1 The real-time display of CO2 concentration, temperature, humidity and present time, and the environment state by image expression (smile, uncomfortable and pain).

2.2 It records the information of CO2 concentration, temperature, humidity, present time and the maximum & minimum values (CO2 concentration, temperature and humidity) per day. 

2.3  User-definable detection range setting (0～10000ppm).

2.4  It supports PC data inquiry and function setting.

2.5  Pass code protection function

2.6 One-key input independent address 485 communications interface, communication rate 9600,14400,19200 (default),28800,38400 bps (programmable set), 15KV ESD protection, 8 separate address, the maximum number of network nodes 256;

2.7 Analog linear output and input of CO2 concentration:0.8～4V

2.8 User-definable alarm point (CO2 low-alarm, high-alarm; temperature low-alarm, high-alarm; humidity low-alarm, high-alarm).

2.9 Clock support for user set, and with a button battery, power-down without re-set time.

2.10 The sampling of CO2 concentration, temperature and humidity are high-performance modules with high-precision, low error, easy production debugging and post-maintenance.

2.11  External interfaces all use air plug to connect.

CO2 monitor