Air & gas measuring devices for air quality

Air Contaminent

Ozon - O3

Carbon Dioxide - CO2

Senseca

GGO370-L01-G36-GE, Closed Air Oxygen Sensor for Universal Use

SKU:: GGO370-L01-G36-GE

Suitable for the meters GMH 3692, GMH 3695, GMH 5690 and GMH 5695.

Oxygen concentration: 0.0 - 100.0% O₂

Partial oxygen pressure: 0 - 1100 hPa O₂

Suitable for over- and under-pressure

Application in gas-tight systems, i.e. diving gas, longlife

Not suitable for use in "submarine applications" as rebreathers etc.

Senseca

GGO370-L01-G36-GE, Closed Air Oxygen Sensor for Universal Use

234,43 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

PSE Priggen

EZ-1X Ozone Monitor, 0.02 - 0.14 ppm

SKU:: EZ-1X
Item weight:: 0,16 kg

measuring range: 0.02 - 0.14 ppm

LED bar display

inexpensive portable meter

integrated rechargeable battery for 8h continuous operation

PSE Priggen

EZ-1X Ozone Monitor, 0.02 - 0.14 ppm

683,06 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Tinytag

TGP-4017, Tinytag Plus 2, Temperature Data Logger, IP68, Internal Sensor

SKU:: TGP-4017

self-contained temperature recorder

measuring range: -40°C to +85°C

resolution: 12 bit, 0.01°C or better

32,000 reading capacity

robust, waterproof case

user-settable alarms

Tinytag

TGP-4017, Tinytag Plus 2, Temperature Data Logger, IP68, Internal Sensor

157,08 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

PSE Priggen

Formaldehyde Calibration Standard Tube

SKU:: 514 001
Item weight:: 0,05 kg

Formaldehyde Calibration Standard for the following instruments:

Formaldemeter Htv

Formaldemeter Htv-m

Formaldemeter 400

Formaldemeter 400ST

Glutaraldemeter 3

PSE Priggen

Formaldehyde Calibration Standard Tube

190,40 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Formaldemeter htV Kit with Calibration Standard

PSE Priggen

Formaldemeter htV Kit with Calibration Standard

SKU:: 556 161

formaldehyde measurement, CH₂O

measuring range. 0-10ppm

resolution: 0.01ppm

sensor: electrochemical cell

simple calibration procedure by user

fast readings

PSE Priggen

Formaldemeter htV Kit with Calibration Standard

2.201,50 € *

Go to item

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

Senseca

GMH 3611, Meter for Dissolved Oxygen in Liquids, incl. Probe

SKU:: GMH3611-L04

automatic air pressure compensation

salinity correction

extremely small measuring probe

serial interface

simple calibration in atmospheric air

Senseca

GMH 3611, Meter for Dissolved Oxygen in Liquids, incl. Probe

633,91 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

PSE Priggen

AirCO2ntrol Life, CO2 Monitor, "Fug Lights"

SKU:: TF31.5003

Measuring range 0-3000ppm
Alarm sounds if 1200ppm is exceeded (can be disabled)
Evaluation via "fug lights" display
Simultaneous display of temperature, relative humidity and CO₂ concentration

PSE Priggen

AirCO2ntrol Life, CO2 Monitor, "Fug Lights"

188,02 € *

Go to item

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

PSE Priggen

AirControl 3000, Carbon Dioxide Meter, 0-3,000ppm

SKU:: TF31.5000

large display
measuring range: 0 - 3,000ppm
incl. power supply for 230VAC
24h data logger function
settable audible alarm

PSE Priggen

AirControl 3000, Carbon Dioxide Meter, 0-3,000ppm

235,62 € *

Go to item

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

Best sellers

Senseca

GOEL 370, Replacement Sensor Element Oxygen (Acidic Electrolyte)

SKU:: GOEL370

Replacement sensor for GHM Greisinger oxygen instruments.

Senseca

GOEL 370, Replacement Sensor Element Oxygen (Acidic Electrolyte)

134,23 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Senseca

GS 150, Gas Pump for Gas Sampling

SKU:: GS150
Item weight:: 0,21 kg

Easy to use

Durable membrane pump

Quiet

Low quantity of gas conveyed

Mobile operational with battery

Battery charge indicator

Senseca

GS 150, Gas Pump for Gas Sampling

458,15 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

Tinytag

TGP-4704, Tinytag Plus 2, Voltage Datalogger, 0-25VDC, IP68

SKU:: TGP-4704

battery-powered voltage recorder

measuring range: 0-25VDC

resolution: 1mV

32,000 reading capacity

robust, waterproof case

user-settable alarms

Tinytag

TGP-4704, Tinytag Plus 2, Voltage Datalogger, 0-25VDC, IP68

164,22 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

Tinytag

TGP-4804, Tinytag Plus 2, Standard Signal Current Datalogger, 0-20mA DC, IP68

SKU:: TGP-4804

battery-powered voltage recorder

measuring range: 0-20mA DC

resolution: 1µA

32,000 reading capacity

robust, waterproof case

user-settable alarms

Tinytag

TGP-4804, Tinytag Plus 2, Standard Signal Current Datalogger, 0-20mA DC, IP68

164,22 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

AIRCO2NTROL COACH, CO2 Monitor, 0-9999ppm

PSE Priggen

AIRCO2NTROL COACH, CO2 Monitor, 0-9999ppm

SKU:: TF31.5009.02

For the monitoring of CO₂ concentration in rooms
CO₂ level measurement with 24-hours graph
Illumination colour indicates different conditions
Displays time, temperature and humidity
Power supply via micro-USB cable

PSE Priggen

AIRCO2NTROL COACH, CO2 Monitor, 0-9999ppm

117,81 € *

Go to item

Available
: 4 - 6 Workdays (DE - int. shipments may differ)

Best sellers

Formaldemeter htV-M Kit & Calibration Standard, with...

PSE Priggen

Formaldemeter htV-M Kit & Calibration Standard, with Datalogger 14000 Samples Memory

SKU:: 557 165

formaldehyde measurement, CH₂O

measuring range: 0-10ppm

resolution: 0.01ppm

built in non-volatile memory that can be upgraded.

capable of up to one month of continuous monitoring.

real time clock.

built in alarm

mains or battery powered.

can be used as a manual hand held and a continuous monitoring data logger.

USB interface for direct connection to PC

Supplied with the htV-M download software

PSE Priggen

Formaldemeter htV-M Kit & Calibration Standard, with Datalogger 14000 Samples Memory

2.998,80 € *

Go to item

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

Senseca

GMH 3695, Air Oxygen Meter without Sensor, with Integrated Data Logger

SKU:: GMH3695

Measuring ranges: Oxygen concentration: 0.0 ... 100.0 % O2 (gaseous), 0 ... 1100 hPa O2 Temperature: -5.0 ... 50.0 °C Air pressure: 300 ... 5000 hPa

Senseca

GMH 3695, Air Oxygen Meter without Sensor, with Integrated Data Logger

571,20 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Senseca

GOO 381, Open Air Oxygen Sensor for low Concentration

SKU:: GOO381

Suitable for the oxygen meters GMH 3692 and GMH 3695

Oxygen concentration: 0.0 - 25.0%

Partial oxygen pressure: 0 - 300 hPa

Suitable for air or gas inflow

Fast temperature compensation

Fast response time

Reinforced diaphragm

Lacquered electronic

Senseca

GOO 381, Open Air Oxygen Sensor for low Concentration

319,04 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

PSE Priggen

OS-4/SM-EC, Ozone Switch, 0.03 - 20ppm

SKU:: OS-4/SM-EC
Item weight:: 0,55 kg

measuring range: 0.03 - 20ppm

resolution: 0.01ppm

can be used as a 2-point controller for ozone

remote sensor

replaceable precalibrated sensor SM-EC

relay switching outputs

outputs: 4-20mA; 0-2VDC; RS-232 digital

PSE Priggen

OS-4/SM-EC, Ozone Switch, 0.03 - 20ppm

1.668,38 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

OS-6/SM-EC, Industrial Grade Ozone Controller with...

PSE Priggen

OS-6/SM-EC, Industrial Grade Ozone Controller with Electrochemical Sensor, 0.03-20ppm

SKU:: OS-6/SM-EC

measuring range: 0.03-20ppm or 1-50ppm

resolution: 0.01ppm

electrochemical sensor

rugged spray water resistant industrial enclosure

large backlit digital display

auto-ranging 0-20ppm

easy front panel access to set points and relays

easily replaceable pre-calibrated sensor module

PSE Priggen

OS-6/SM-EC, Industrial Grade Ozone Controller with Electrochemical Sensor, 0.03-20ppm

1.668,38 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Tinytag

TGE-0011-SPK, CO2 Logger Starter Kit for Indoor Air Monitoring, 0-5000ppm

SKU:: TGE-0011-SPK

kit of logger, software & cable

measuring range: 0-5000ppm

Tinytag

TGE-0011-SPK, CO2 Logger Starter Kit for Indoor Air Monitoring, 0-5000ppm

592,62 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

PSE Priggen

Extension Cable for rotronic HC2A-S Climate Sensor

SKU:: H01-340

For the connection to the rotronic climate sensor HC2A-S

Accessory for BiVOC2 and MBASS30

PSE Priggen

Extension Cable for rotronic HC2A-S Climate Sensor

171,24 € *

Go to item

Available
: 6 - 8 Workdays (DE - int. shipments may differ)

Best sellers

PSE Priggen

Airthings HOME, Portable Digital Radon Monitor

SKU:: home
Shipping weight:: 0,20 kg

measuring range: 0-9.999Bq/m³

for continuous radon measurements

display of short- and long-term average readings

battery lifetime: 3 years

PSE Priggen

Airthings HOME, Portable Digital Radon Monitor

198,00 € *

Go to item

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

Best sellers

Aluminium Tripod, 145cm, with Shoulder Bag

PSE Priggen

Aluminium Tripod, 145cm, with Shoulder Bag

SKU:: H02-120

145cm high aluminium tripod with max. 12kg carry load
Height-adjustable centre column
Fast and easy setup
Quick leg lock with levers
Standard with quick-change adaptor
Supplied in a practical shoulder bag

PSE Priggen

Aluminium Tripod, 145cm, with Shoulder Bag

445,06 € *

Go to item

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

Senseca

AP 472-S2, Vane Probe for Thermo- Anemometer, max. 20m/s

SKU:: AP472S2

Accessory for the Thermo-Anemometer HD 2303.0

Measuring ranges: 0.5-20m/s; -25 to +80°C

Senseca

AP 472-S2, Vane Probe for Thermo- Anemometer, max. 20m/s

489,09 € *

Go to item

Available
: ca. 3 weeks (DE - int. shipments may differ)

PSE Priggen

C-21, VOC Gas Sensor with audible Alarm

SKU:: C-21

continuous monitoring and alarm device for volatile hydrocarbons

only a few seconds response time

very easy installation and operation

semiconductor sensor reduces maintenance to a minimum

operation via power supply or integrated rechargeable battery (2h operation)

analogue output 0-2 VDC and transistor switching output for remote alarm

PSE Priggen

C-21, VOC Gas Sensor with audible Alarm

540,26 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

PSE Priggen

C-30ZX, Ozone Monitor with Alarm, 0.02 - 0.14ppm

SKU:: C-30ZX
Item weight:: 0,14 kg

measuring range: 0.02 - 0.14ppm

LED bar display

cost-effective fixed mount ozone monitor

alarm can be switched off

analogue output

PSE Priggen

C-30ZX, Ozone Monitor with Alarm, 0.02 - 0.14ppm

942,48 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

Senseca

ECO410, O2 Analyser, Oxygen Meter

SKU:: ECO410-35

0-100 vol. % O₂, recommended for 0.2 to 35.0%
modern & functional - pocked size
waterproof IP65 and IP67
comfortable air adjustment at push of button
3-line display with backlight/ overhead display at push of button

Senseca

ECO410, O2 Analyser, Oxygen Meter

252,64 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

PSE Priggen

Phenol Filters, Formaldemeter Accessory (Pack of 100)

SKU:: 510 001

Phenol filters for Formaldemeters (pack of 100)

for use in presence of phenol and resorcinol

also suitable as dust filters

PSE Priggen

Phenol Filters, Formaldemeter Accessory (Pack of 100)

213,01 € *

Go to item

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

Senseca

GFTB 200, Precision Hygro/Thermo/Barometer

SKU:: GFTB200

relative humidity, temperature and air pressure in just one instrument

additional derived units: dew point temperature, wet bulb temperature, moisture content and absolute humidity

alarm function with integrated horn

min-/max-value memory for all measuring ranges

Senseca

GFTB 200, Precision Hygro/Thermo/Barometer

275,49 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Senseca

GGO 381, Closed Air Oxygen Sensor for low Concentration

SKU:: GGO381-L01-G36-GE

Suitable for the meters GMH 3692 and GMH 3695

Oxygen concentration: 0.0 - 25.0% O₂

Partial oxygen pressure: 0 - 300 hPa O₂

Suitable for over- and under-pressure

Application in gas-tight systems, i.e. diving gas, longlife

Fast response time

Senseca

GGO 381, Closed Air Oxygen Sensor for low Concentration

285,48 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

Senseca

GMH 3692, Air Oxygen Meter without Sensor

SKU:: GMH3692

alarm monitoring with integrated horn

serial interface

easiest calibration in atmospheric air

automatic ambient air compensation

Senseca

GMH 3692, Air Oxygen Meter without Sensor

314,64 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

Senseca

GOO 370, Open Air Oxygen Sensor for Universal Use

SKU:: GOO370
Shipping weight:: 0,21 kg

Suitable for the meters GMH 3692, GMH 3695, GMH 5690 and GMH 5695.

Oxygen concentration: 0.0 - 100.0% O₂

Partial oxygen pressure: 0 - 1100 hPa O₂

suitable for air or gas inflow

fast temperature compensation

reinforced diaphragm

lacquered electronic

Senseca

GOO 370, Open Air Oxygen Sensor for Universal Use

264,30 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

GWO 3600-L04Spare Sensor for GMH 3611, Meter for...

Senseca

GWO 3600-L04Spare Sensor for GMH 3611, Meter for Dissolved Oxygen, 4m Cable

SKU:: GWO3600-L04

Accessory for GMH 3611

Senseca

GWO 3600-L04Spare Sensor for GMH 3611, Meter for Dissolved Oxygen, 4m Cable

270,13 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Senseca

IAQ Monitor for Monitoring Indoor Air Quality

SKU:: HD21-ABE-17

Simultaneous measurements of:

Carbon dioxide (CO₂): 0-5,000ppm

Carbon monoxide (CO): 0-500ppm

Atmospheric pressure: 750-1,100hPa

Temperature: -20 to +60°C

Relative Humidity: 0-100% RH

Senseca

IAQ Monitor for Monitoring Indoor Air Quality

1.591,03 € *

Go to item

Available
: ca. 3 weeks (DE - int. shipments may differ)

IM806V3 Accessory:Temperature/Humidity Sensor rotronic...

PSE Priggen

IM806V3 Accessory:Temperature/Humidity Sensor rotronic HC2A-S

SKU:: H01-332

Accessory for air sampling device

Suitable for BiVOC2V2 or MBASS30V3

PSE Priggen

IM806V3 Accessory:Temperature/Humidity Sensor rotronic HC2A-S

573,33 € *

Go to item

Available
: 6 - 8 Workdays (DE - int. shipments may differ)

MBASS30V3 Kit4, Air Sampling System with LKS100 and PS30...

PSE Priggen

MBASS30V3 Kit4, Air Sampling System with LKS100 and PS30 Sampling Heads

SKU:: H01-144

MBASS30V3 main unit

air sampling head LKS100

particle sampling head PS30

Superfast charger

USB interface cable

Software MBASS30Control

Manual

PSE Priggen

MBASS30V3 Kit4, Air Sampling System with LKS100 and PS30 Sampling Heads

5.507,96 € *

Go to item

Available
: 6 - 8 Workdays (DE - int. shipments may differ)

Senseca

OXY 3610 MP, O2 Transducer for Dissolved Oxygen in Liquids, incl. Sensor

SKU:: OXY3610MP

measuring ranges: 0.0 to 25.0mg/l O₂ (dissolved); 0.0 to +50.0°C

output signal: 4-20mA

auxiliary energy: 12 -30VDC

connection: 5-pin jack connector, screwable

Senseca

OXY 3610 MP, O2 Transducer for Dissolved Oxygen in Liquids, incl. Sensor

721,14 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

Senseca

OXY 3690 MP-0-GGO-A1-L01, O2 Transducer for Air Oxygen Measurements, incl. Sensor

SKU:: OXY3690MP

measuring ranges: 0.0 to 100.0% O₂ (gaseous); -20.0 to +50.0°C

output signal: 4-20mA

auxiliary energy: 12 -30VDC

connection: 5-pin jack connector, screwable

Senseca

OXY 3690 MP-0-GGO-A1-L01, O2 Transducer for Air Oxygen Measurements, incl. Sensor

721,14 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Senseca

Residual Oxygen Measuring System "ResOx 5695-L"

SKU:: ResOx5695-L
Item weight:: 1,60 kg

with recommended sensor element GOEL 381

with data logger and interface

pressure compensated measurement

fine resolution with 0.01% O₂

independent battery-operated gas pump

membrane filter against unintended suction of particles/liquid

intelligent complete measuring system in a practical carry case

Senseca

Residual Oxygen Measuring System "ResOx 5695-L"

1.482,74 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Tinytag

TGP-4500, Tinytag Plus 2, Temperature/Humidity Logger, Internal Sensors, IP68

SKU:: TGP-4500
Item weight:: 0,10 kg

measuring ranges: -25 to +85°C / 0 to 100% RH

resolution: 12 bit, 0,1°C / 0,3% RH

32,000 reading memory

robust, waterproof housing

low battery monitor

user-replaceable battery

Tinytag

TGP-4500, Tinytag Plus 2, Temperature/Humidity Logger, Internal Sensors, IP68

249,90 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

Best sellers

Tinytag

TGP-4703, Tinytag Plus 2, Voltage Data Logger, 0-2.5VDC, IP68

SKU:: TGP-4703

battery-powered voltage recorder

measuring range: 0-2,5VDC

resolution: 0.11mV

32,000 reading capacity

robust, waterproof case

user-settable alarms

Tinytag

TGP-4703, Tinytag Plus 2, Voltage Data Logger, 0-2.5VDC, IP68

164,22 € *

Go to item

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

What types of air and gas measuring instruments does PSE Priggen offer?

We offer various air and gas measuring instruments such as CO₂ monitors, air quality meters, portable gas detectors, radon monitors, VOC detectors as well as stationary sensors for CO₂, CO, O₂ and other gases. In addition, you will find instruments for air sampling, flow measurement and weather & climate monitoring.

Which gases and parameters can your air and gas instruments measure?

Depending on the instrument, they can measure CO₂, CO, O₂, ozone, VOCs, radon and other gases and airborne pollutants. Many devices also record temperature and humidity to provide a comprehensive assessment of indoor air quality. The exact measuring parameters are listed in each product description.

What is the difference between an air quality meter and a gas detector?

Air quality meters are mainly used to assess indoor air, e.g. CO₂ level, temperature, humidity and sometimes particulate matter or VOCs, often including trend graphs and threshold warnings. Gas detectors are primarily safety-related devices that give clear alarms when limit values are exceeded (e.g. CO, oxygen deficiency, flammable gases) and can be integrated into safety systems.

For which applications are PSE Priggen’s air and gas instruments suitable?

For which applications are PSE Priggen’s air and gas instruments suitable?
Our instruments are used in offices, schools, public buildings, industrial plants, laboratories, production areas as well as in building biology and environmental applications. Typical tasks include monitoring indoor air quality, controlling CO₂ levels, detecting hazardous substances and supporting occupational health and safety measures.

Do you offer both portable and stationary air or gas measuring instruments?

Yes, we supply portable handheld instruments for mobile measurements and spot checks, as well as stationary sensors and monitors for continuous monitoring of rooms or processes. Some models feature data logging capabilities, PC or network interfaces and alarm/relay outputs to control ventilation or warning systems.

Do air and gas measuring instruments require regular calibration?

Regular calibration or function checks are recommended for reliable readings, especially for safety-related gas detectors. The recommended intervals depend on the device type, application and manufacturer’s specifications. The technical data and manuals provide information on calibration – we will be happy to help you choose suitable instruments and calibration services.

What should I consider when selecting an air or gas measuring instrument?

Key criteria include the gases/parameters to be measured, measuring range, accuracy, response time, operating environment (indoor, industrial, possibly hazardous area), mounting type (portable or stationary) and required interfaces and alarm functions. If you briefly describe your measurement task, we will recommend suitable instruments and accessories.

Can you support me in planning an indoor air or gas monitoring solution?

Yes, we are happy to assist you in selecting suitable instruments and sensors for your application – from simple CO₂ room monitoring to combined solutions with several sensors. If desired, we take into account room size, number of occupants, ventilation concept and safety requirements and recommend a technically sound and cost-effective solution.

Best sellers

Formaldemeter htV-M Kit & Calibration Standard, with Datalogger 14000 Samples Memory

Available
: 8 - 10 Workdays (DE - int. shipments may differ)

2.998,80 € *

Best sellers

Formaldehyde Calibration Standard Tube

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

190,40 € *

Best sellers

TGP-4704, Tinytag Plus 2, Voltage Datalogger, 0-25VDC, IP68

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

164,22 € *

Best sellers

TGP-4804, Tinytag Plus 2, Standard Signal Current Datalogger, 0-20mA DC, IP68

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

164,22 € *

Best sellers

GOEL 370, Replacement Sensor Element Oxygen (Acidic Electrolyte)

Available
: 11 - 13 Workdays (DE - int. shipments may differ)

134,23 € *

Air and gas measuring devices for air quality and safety

Air and gas measuring devices detect gases, vapours and airborne pollutants and are used to assess indoor air, industrial processes and occupational safety. This category includes portable gas detectors, indoor air quality meters and stationary sensors for CO2, CO, O2, VOC, combustible gases and other components.

Measurement principles and sensor types

Electrochemical, NDIR infrared, catalytic and PID sensors cover a wide range of toxic and combustible gases. Particle and fine dust sensors measure PM2.5/PM10, while multifunctional devices additionally record temperature, humidity and differential pressure to characterize ambient conditions.

Portable air and gas measuring instruments

Portable multi-gas detectors are ideal for occupational safety, maintenance and service. Visual and audible alarms warn if preset thresholds are exceeded, and data logging functions document exposure over time. Indoor air quality meters support the evaluation of CO2 levels, VOC load and comfort parameters in offices, schools and public buildings.

Stationary gas detection and air quality systems

Stationary sensors and controllers continuously monitor critical areas such as car parks, refrigeration systems, storage rooms and laboratories. Analogue 4–20 mA or digital interfaces connect the sensors to ventilation systems, building automation and safety systems.

Typical applications

Applications range from building services and chemical industry to biogas plants, wastewater treatment and environmental monitoring. Air and gas measuring devices contribute significantly to compliance with limit values and to the optimization of ventilation concepts.

Selection criteria

Key criteria are the target gases, measuring ranges, alarm levels, sensor lifetime and environmental conditions. For portable instruments, battery life, robustness and ease of use are crucial, while stationary systems require suitable maintenance and calibration concepts and flexible interfaces.