Ozone Meter AQ-SM 70

Order no.: AQ-SM 70
£ 550.00
£ 660.00
AQ-SM 70
price ex. (VAT / delivery)
Delivery time: 10 - 14 days
VOC-Ozone Meter AQ-SM 70
VOC ozonemeter for monitoring gas / ozone or VOC / sensor included in delivery / continuous monitoring / large, easy to read display / audible alarm / robust and compact / low maintenance
The VOC Ozone Meter AQ-SM 70, which is fixed to the wall, has been developed for the measurement and monitoring of gas by activating aninternal switch. The VOCOzoneMeterAQ-SM 70 is preprogrammed with a specific software to be operated with one of these two possibilities:
1. As a simple switching device (switched on and off device).
2. As a monitor (to maintaina specific gas concentration between the user-defined area).
Depending on whether low or high gas concentrationsare to be measured with the VOC ozonemeter, special sensors are used. With an integrated LCD display, audible alarm, relay outputs, and a variety of sensors of ozone and VOC gases - the VOC Ozone Meter providesunbeatableresults for industrial and interior gas monitoring. Benefiting from the accuracy of GSSsensors, the VOC ozone monitor is used for various applications such as leak detection, health and safety monitoring and process monitoring.

- Measurement of ozone and VOC
- Continuous monitoring
- Large, easy to read display
- Attachment to the wall
- Audible alarm
- Robust and compact
- Low maintenance
- Optional sensors

Technical Data for the Ozone Meter AQ-SM 70
Display3.5 Digits LCD
Relay setpointconfigurable
Digital outputRS232 and RS485
Analog output0 ... 5 VDC (8 bit)
Relay output24 V; 5A (max.)
Warning signal(optional)audible alarm (85 dB at 30 cm)
Operation modecontinuous
Operating ConditionsTemperature: 0 ... +40 °C
Humidity: 10 ... 90 % r.H., 
Warm-up time10 minutes
Power supply12 VDC, 800 mA, Plug-in AC power supply
Housing protectionflame resistant thermoplastic PS
Attachmentwith screws
Dimensions130 x 94 x 57 mm
Weight< 270 g; 9.5 oz (without AC power supply)
ApprovalsPart 15 of the FCC Rules
EN 61000-6-3: 2001
EN 61000-6-1: 2001
Volatile organic compounds (VOC)

What are VOCs?
The abbreviation VOC (Volatile Organic Compounds) refers to the group of volatile organic compounds. VOC describes gas- and vaporous substances of organic origin in the air.These include, for example, hydrocarbons, alcohols, aldehydes and organic acids. Many solvents, liquid fuels and synthetic materials can occur as VOC, as well as numerous organic compounds that are formed in biological processes. Hundreds of different individual compounds can occur together in the air.

What are the sources of VOC?
VOCsarise from very different sources. Biological processes can be outside air sources, for example, plant material exchange, putrefaction and decomposition processes. Other external air sources are industrial processes where materials from incomplete combustion occur (especially road transport emissions),or even as volatile by-products from industrial and commercial operations. Potential indoor sources are products and materials for construction of buildings and furnishing (for example, floor, wall and ceiling materials, paints, varnishes, adhesives, furnishings and decorative materials). Also significant are care, cleaning and hobby products, including tobacco smoke, even food preparationand human metabolism.
Compared to outdoor air,indoor sources in Central Europe generally have a significantly greater health significance because people spend most time in buildings. In addition, the distance to the VOC sources indoors is usually low. VOC from the outside air can also enter into the interior. Usually, however, the original interior concentrations are reduced during airing.

How are VOCsin the air?
If solvent or liquid fuels evaporate, andliquid or pasteproducts dry,VOCsescape in large quantities into the surrounding air. Less obvious is the proliferation of different impurities that are not firmly embedded in products. It can slowly release from the surface of the product to the air,and be constantly replenished from the productunder the surface (Material Emission). This applies to, for example, residual solvent and components in plastics (monomers), additives such as plasticizers, solubilizing agents, antioxidants, stabilizers and catalysts from the production process, as well as accompanying substances such as fragrances, flame retardants and biocide agents. Typical VOCs are also terpenes. They are made from materials and products of natural origin that are released intothe air, for example items made of wood. VOCs are also formed as reaction products, for example, between oxygen, ozone or water with ingredients of natural origin, such as those contained in wood and vegetable oils.

What health effects can VOCs have?
Usually, the individual VOC concentrations are very low,and health problems are not to be feared. Concentrations that cause health effects can occur immediately after construction and extensive renovation work, and in the case of improper handling andextensive useof unsuitable products. Odors, irritation and symptoms that can not be directly associated with a disease, have been described as acute effects on humans. These effects must be avoided,as researchers have derived from toxicological assessments that there are possible chronic effectsparticularly natural carcinogenic, mutagenic and toxic effects for reproduction. If such effects of substances are known, these may no longer be used as a rule in final products(i.e. the banning of certain chemicals). Not completely ruled out, however, is that VOCs with such potential impactare included in traces in the product, if they were present in uncontrolled primary products or recycled materials. 

How can VOCsbe reduced?
Consumers should choose low-emission products and materials. They can be based on eco-labels such as the Blue Angel (Germany). For larger construction or renovation measures,one can see if the materials are tested according to the AgBB evaluation scheme. Both materials with a recognized eco-label,as well as successful testingaccording to the AgBB scheme,offer a guarantee that the possible VOC tax is reduced to a low level.
If health problems occur in the household and a connection with VOC is suspected, the search for the sources is usually difficult. Indoor air measurements and emission measurements on different materials are very expensive and often do not achieve the desired clarity. Residents should therefore seek professional advice. You will find expertsin local health and environmental agencies, the chambers of commerce or the Internet. Professionals can often determine the probable VOC sourceby an inspection of the apartment and by interviewing residents. Oncethe sources of VOC pollution are clearly identified, it must be decided individually on their disposal - depending on the nature and extent of the possible health detriment, according to the amount and expected reduction in VOC concentration and the cost. Alsoexpert advice should be included, on
whether and how the VOC sources are to be removed, trappedor treated. Basically, it is always helpful to reduce VOC concentration indoorsby airing.

You can select one of the following sensorsfor the VOC Ozone Meter AQ-70 SM


Measuring range. (ppm)




Temp. °C/ Hum. %

(O3)  UZ

0 ... 0.15 


< ±0.005 ppm


0 ... +40 
10 ... 90

(O3)  LZ

0 ... 0.5


< ±0.008 ppm
(0 ... 0.1 ppm)


0 ... +40 
10 ... 90

(O3)  GZ

0 ... 10


< ±0.1 ppm
(0...1 ppm)


0 ... +40 
10 ... 90 

Delivery contents of the VOC-Ozone Meter AQ-SM 70
1 x VOC- Ozone Meter AQ-SM 70 UZ (0 ... 0.15 ppm Ozon)
1 x VOC- Ozone Meter AQ-SM 70 LZ (0 ... 0.5 ppm Ozon)
1 x VOC- Ozone Meter AQ-SM 70 GZ (0 ... 10 ppm Ozon)
Included with every VOC-Ozone Meter AQ-SM 70
1 x Power Supply, 1 x Fixing material, 1 x Operating instructions