Descriptions
This series is used to monitor and record temperature, humidity, CO2(carbon dioxide) and air pressure. Large LCD shows readings, status, alarm information and real-time clock. User can use touch buttons to configurate alarm limit, backlight settings, sound alarm settings. Widely suitable for laboratory, scientific research, agriculture, flower, animal and plant breeding, home / car / classroom / workplace monitoring etc.
Specifications and Selection Guide
YEM-20L | YEM-40L | YEM-70L | |
Channel | 1 int. temp.(dew point supported)
1 int. humi. |
1 int. temp.(dew point supported)
1 int. humi. 1 int. CO2 |
1 int. temp.(dew point supported)
1 int. humi. 1 int. air pressure |
Sensor | Digital
Digital |
Digital
Digital Infrared |
Digital
Digital Digital |
Measuring unit | ℃, ℉
%RH |
℃, ℉ %
RH PPM |
℃, ℉
%RH hPa |
Measuring range | -30~65℃
0~100%RH |
-30~65℃
0~100%RH 0~10000PPM |
-30~65℃
0~100%RH 300~1100hPa |
Measuring accuracy | ±0.3℃(-10~65℃) ±0.5℃(others)
±3%RH(10~90%RH) ±4%(others) |
±0.3℃(-10~65℃) ±0.5℃(others) ±3%RH(10~90%RH) ±4%(others) ±3%±40PPM(400~2000PPM) only for reference(others) | ±0.3℃(-10~65℃) ±0.5℃(others) ±3%RH(10~90%RH) ±4%(others) ±1hPa |
Measuring resolution | 0.1℃
0.1%RH |
0.1℃
0.1%RH 1PPM |
0.1℃
0.1%RH 0.2hPa |
Data logging memory | 26624 readings | 22528 readings | 22528 readings |
Response time(T90) | 15 minutes
15 minutes |
15 minutes
15 minutes 3 minutes |
15 minutes
15 minutes 5 seconds |
LCD refresh interval | 5s | 5s | 5s |
Measuring interval | 5s | 5s(temp. and humi.) 5s to 30m(co2) | 5s |
Battery | 3pcs AAA battery | 3pcs AAA battery | 3pcs AAA battery |
Battery life | 1 year(25℃) | 45 days(25 ℃,15 minutes interval) | 1 year(25℃) |
Power supply | AC/DC Adapter (100~240V 50/60Hz, 5V/2A) | ||
Operation temperature | -30~65℃ | -30~65℃(if<0℃ or=”>50℃, CO2 will stop) | -30~65℃ |
Storage temperature | -30~65℃ | -30~65℃ | -30~65℃ |
Size/Weight | 96X108X20mm/116g | 96X108X20mm/121g | 96X108X20mm/117g |
Protection Class | IP20 | IP20 | IP20 |
Standards/Certificates | CE ROHS | CE ROHS | CE ROHS |
Interface | MicroUSB | MicroUSB | MicroUSB |