Dräger VarioGard® 3000 EC Toxic Gases and Oxygen Detectors

Dräger VarioGard® 3000 EC

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Dräger VarioGard® 3000 EC

The Dräger VarioGard® 3000 EC is a digital transmitter with an integrated electrochemical sensor. It detects oxygen and toxic gases in the ambient air. This affordable system component makes it easier for you to configure a gas warning system.

Digital function

​The Dräger VarioGard 3000 EC is connected with the controller via the digital VarioGard bus. This is how it is supplied with electricity and how it transmits its measuring results. You can easily control the entire VarioGard system via the VarioGard bus.

High reliability

​The VarioGard 3000 EC is equipped with an electrochemical DrägerSensor. This sensor measures the concentration of toxic gases in the ambient air. The measured values are transmitted digitally to the controller and displayed there. An alarm is triggered if the gas concentration exceeds one or more of the limit values configured.

Easy operation

​The operation is extremely easy. You can make all configurations comfortably from the controller using VarioGard software. You can configure and monitor four current limit values and four averages over time for each transmitter. The alarms are optically and acoustically displayed on the transmitter and transmitted to the controller. A three-colour LED indicates the operating status of the transmitter. The calibration is controlled using a magnetic wand via contact points.

Individually configurable

​The VarioGard 3000 EC is adaptable to your needs. This means that you have different sensors available depending upon the desired use:

CO, NO2 and NO for garages, O2 for oxygen supplies and NH3 for cooling facilities, for example.

In addition, you can place the cable inlets on all four sides of the transmitter. The transmitter can be mounted vertically as well as horizontally.


VarioGard 3000 EC Product Information, en-master
VarioGard 3000 EC Product Information, en-master

The Dräger VarioGard® 3000 EC is a digital transmitter with an integrated electrochemical sensor. It detects toxic gases such as CO, NO2, NO, NH3 and oxygen in non Ex areas such as underground garages, laboratories and in cold storage houses.


Brochure: The comprehensive gas warning system for your building (PDF)
Brochure: The comprehensive gas warning system for your building (PDF)

The Dräger VarioGard central unit is the centre of an affordable and modular gas warning system. Many different transmitters and modules can be connected to the VarioGard central unit.


Brochure: Digital Communication (PDF)
Brochure: Digital Communication (PDF)

Dräger has counted on digital communication for over 30 years. This includes the globally recognised HART®, FoundationFieldbus H1®, Profibus PA® and LON technologies.


Gas Dispersion Brochure, en
IFU VarioGard - 9033185 de-me
More than the sum Brochure, en

Fixed gas detectors, sensors and substances

Dräger gas detectors can be used with different sensors to detect a large number of hazardous substances. Check which sensor fits into this detector by searching for a substance. Contact our experts to get more information on our wide portfolio.

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Product configurations

for the device VarioGard 3000

Utilise for 5 Substances

6 matching Sensor(s)

Technical Data

Key Facts

Cable entry
M20 x 1.5
Intrinsic Safety
Increased Safety
4-20 mA

Technical Data

Power Supply
16 to 30 V DC
Temperature (operation)
-20°C - 50°C
10 to 95% r.h., non-condensing
Pressure (hPa)
700 - 1300
Dimensions (H × W × D)
0.12x0.12x0.06 m
1 Kg
Housing Material
Plastic ABS or aluminum
Degree of protection (IP class)


CE marking
Performance approval
Shipping approval (MED)

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Get in touch with Dräger

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Dräger Safety AG & Co. KGaA

​Branch​ ​Office
P.O.​ ​Box​ ​505108
Dubai,​ ​United​ ​Arab​ ​Emirates 

+971 4 42 94 600

​F:​ ​+971​ ​4​ ​42​ ​94​ ​699
Not​ ​all​ ​products,​ ​features,​ ​or​ ​services​ ​are​ ​for​ ​sale​ ​in​ ​all​ ​countries.​ ​Please​ ​contact​ ​your​ ​local​ ​Dräger​ ​representative​ ​for​ ​more​ ​information.