Groundbreaking ceremony for significant growth

The office and manufacturing space alone at the new S+S location in Nuremberg will be expanded to 8,600 m² in order to meet the increasing demand for advanced sensor devices.

With Giga factory for sensors to become the #1 on the market

On a total area of over 14000 square meters, the new S+S company headquarters is being built in the north of Nuremberg.

Specialists in pressure

Multi-range measuring transducers for pressure, differential pressure and volume flow

PREMASGARD 211x / 212x

Efficient, convenient and network-enabled

Elegant appearance, touch-operated interface, large display, and Modbus-compatible

RYMaskon

Multi-funtional duct sensor

For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systems

PREMASGARD® 814x-Modbus

Satisfied customers drive our business

An overview of our references

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Electronic frost protection monitor

2-phase thermostat with continuous and switching output for reliable prevention of frost damages and freezing

THERMASREG® FS-20

Für jede Anwendung die richtige Lösung [Translate]

ACO2 MODBUS

AERASGARD® ACO2 MODBUS

Item No. 1501-7110-6001-200
EAN 4 251325 613499

The maintenance-free, microprocessor-controlled AERASGARD® AFTM - LQ - CO2 - Modbus and ACO2 - Modbus/ ALQ - CO2 - Modbus with Modbus connection, with/ without optional display, is designed for on-wall installation and is used to monitor all measurands of relevance to the climate inside a room. These are the measurands air humidity, temperature, CO2 concentration as well as air quality (VOC). By using a single device to monitor all four measurands, it is possible to effectively monitor and regulate the entire room climate. It measures CO2 in the range of 0...5000 ppm, VOC at one of three selectable sensitivity levels LOW / MEDIUM / HIGH, temperatures in the range of –35...+80 °C, as well as relative air humidity from 0...100 % r.H.

The relative humidity (% r.H.) quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature. A digital, long-term stable sensor used as measuring element for relative air humidity and temperature guarantees exact measurement results.

The CO2 content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology). The detection range of the sensors is calibrated for standard applications such as monitoring residential rooms and conference rooms. Room ventilation on an as-needed basis, improved well-being and customer benefit, increased comfort as well as reduced operating costs through energy conservation are just some of the benefits of employing the AERASGARD® CO2 sensor.

The explanations above demonstrate that there are applications for CO2 measurements, for VOC measure ments, but from our perspective, above all, for a combination of both measurands. The crucial factor in this respect is that both of these measurands are not convertible into each other and derivations to or from one another cannot be made. An NDIR CO2 measuring instrument measures selectively and cannot detect any VOC; a VOC mixed gas sensor cannot recognize CO2 molecules.

326,40 € net
Voltage supply 24 V AC/ DC (± 10 %)
Power consumption < 4.4 W/ 24 V DC typical; < 6.4 VA/ 24 V AC typical;
peak current 200 mA
Data points temperature, relative humidity,
air quality (VOC), carbon dioxide (CO2),
atmospheric pressure
Measuring range, CO2 0...5000 ppm
Sensor, CO2 optical NDIR sensor (non-dispersive infra-red technology)
with automatic and manual calibration
Measuring accuracy, CO2 typically ± 30 ppm ± 3 % of measured value
Temperature dependence, CO2 ± 5 ppm/ °C or ± 0.5 % of measured value/ °C
(whichever is higher)
Pressure dependence ± 0,13 %/ mm Hg
Gas exchange by diffusion
Response time < 2 minutes
Ambient temperature –10...+60 °C
Bus protocol Modbus (RTU mode),
address range 0...247 selectable
Signal filtering 4 s / 32 s
Process connection by screws
Protective tube stainless steel V2A (1.4301), Ø 16 mm, NL = 55 mm
Electrical connection 0.14 - 1.5 mm2, via push-in terminal
Housing plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016),
housing cover for display is transparent !
Housing dimensions 126 x 90 x 50 mm (Tyr 2)
Cable gland 2x M 16 x 1.5; including strain relief, exchangeable
Long-term stability < 2 % in 15 years
Protection class III (according to EN 60 730)
Protection type IP 65 (according to EN 60 529)
Standards CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
Type Item No. Price
KA-2 1906-1200-0000-100 0,00 €

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