ECO 420 - Compact CO₂ monitor with alarm (formerly G 1910)

Compact CO2 monitor with alarm for many applications in air quality monitoring, green houses, energy management and for research and education.

The CO2 is measured with a high-class non-dispersive infrared (NDIR) sensor via opening at instruments head.

Simultaneous display of time weighted average exposure over 8 hours (TWA) or 15 minutes (STEL).

CO2 – Dangerous at concentration > 3%
The ECO420 is an ideal measuring warning instrument for moderate but non-dangerous levels – it is no replacement for personal safety equipment to be used in areas with potentially dangerous atmosphere.

ATTENTION:
Never enter potentially dangerous areas where CO2 may exceed 3% or 30000 ppm CO2 without additional personal safety equipment!

Display
Thanks to the backlight, the three-line LCD display offers ergonomic wide-angle visibility - by day and by night.
The HOLD function enables the display values to be frozen.

Power supply
2 powerful AA NiMH rechargeable batteries, the energy-saving design and the configurable automatic switch-off function ensure long operation.
Configurable LCD backlight for further energy-saving options.

Protection class:

IP30

Measurement rate:

2 meas/s

Power supply:

2 x AA rechargeable NiMH batteries
(scope of delivery),
consumption approx. 50 mA,
operating time > 24 hours for NiMH batteries (without backlight).
Recharging time ~ 8 hours

Power consumption:

ca. 50 mA

Weight:

approx 160 g

Housing material:

Break-proof ABS-housing

Measuring range:

ECO 420-02: 0..2000 ppm precision (maximum up to 10000 ppm /1,000%)
ECO420-20: 0..19999 ppm; 0.000..2.000 % (expanded to 3.200 %)

Operating conditions:

0 to 50 °C; 0 to 85 % r.h. (non-condensing)

Storage temperature:

-20 ... +70 °C (without batteries)

Display:

3-line with battery status indicator, Backlight, protected by shatterproof screen, overhead display at the push of a button

Dimensions:

108 x 54 x 28 mm

Sensor life:

> 15 years

Additional functions:

Min/max/hold, TWA or STEL-calculation
(average over 24 hours or 15 mins),
2-level alarm (optical and acoustical)

Charging port:

Micro USB socket, incl. connection cable to USB 2.0 type A, for use with common USB chargers

Accuracy (nominal temperature):

±70 ppm CO2 ±3% of reading)

Automatic Power-Off:

Yes, configurable by the user

Battery life:

> 24 hours for NiMH batteries (without backlight)

Housing:

break-proof ABS, polyester (front panel), Metal clip and carrying strap

Measuring cycle:

2 seconds

Pressure dependence:

+ 1.6 % of value per kPa from normal pressure