• Model NO.：YEM-20L
• Interface：USB
• Display Type：LCD
• Analysis Software：Dgraph
• Sensor：Infrared
• Accuracy：3%
• Range：0~9999ppm
• Transport Package：Carton Box
• Specification：96X108X20mm,121g
• Trademark：YOWEXA
• Origin：Shenzhen China

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

ºC, ºF

%RH

ºC, ºF %

RH

PPM

ºC, ºF

%RH

hPa

Measuring range

-30~65ºC

0~100%RH

-30~65ºC

0~100%RH 0~10000PPM

-30~65ºC

0~100%RH 300~1100hPa

Measuring accuracy

±0.3ºC(-10~65ºC)  ±0.5ºC(others) 

±3%RH(10~90%RH)  ±4%(others)

±0.3ºC(-10~65ºC)  ±0.5ºC(others)  ±3%RH(10~90%RH)  ±4%(others) ±3%±40PPM(400~2000PPM) only for reference(others)

±0.3ºC(-10~65ºC)  ±0.5ºC(others)  ±3%RH(10~90%RH)  ±4%(others) ±1hPa

Measuring resolution

0.1ºC

0.1%RH

0.1ºC

0.1%RH

1PPM

0.1ºC

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(25ºC)

45 days(25 ºC,15 minutes interval)

1 year(25ºC)

Power supply

AC/DC Adapter (100~240V 50/60Hz, 5V/2A)

Operation temperature

-30~65ºC

-30~65ºC(if <0ºC or >50ºC, CO2 will stop)

-30~65ºC

Storage temperature

-30~65ºC

-30~65ºC

-30~65ºC

Size/Weight

96X108X20mm/116g

96X108X20mm/121g

96X108X20mm/117g

Waterproof

IP20

IP20

IP20

Standards/Certificates

CE ROHS

CE ROHS

CE ROHS

Interface

MicroUSB

MicroUSB

MicroUSB

1.  OEM Manufacturing

2.  ODM service

3.   Small order/ Prompt delivery 

4.   We will reply you for your inquiry in 24 hours.