26/3/19 Let us introduce a brand-new line of air quality sensors combining broad connectivity, measurements of six quantities at once and compact on-wall installation.
The RW/RLW sensor line is designed for measurements of interior air quality in houses, office buildings, schools and other similar buildings. The sensor itself is placed in a compact on-wall plastic box with IP20 protection with easy installation. Aside from the default design, customers can also purchase a special "Anti-Vandal" version made from durable anodized aluminium. A variant for interiors with higher aesthetic requirements is also available.
All four models offered can be used to measure temperature, relative air humidity, VOC and barometric pressure with -THC models being able to also measure the carbon dioxide concentration with a LED indication (green = low CO2 concentration, red = high CO2 concentration). Currently, we are also developing a dust sensor for measuring the concentration of dust particles.
*dust sensor is under development
Sensors feature an onboard web server and support communication through RS485 interface (Modbus RTU protocol) Sensors can also communicate wirelessly via Wi-Fi (Modbus TCP, REST API interface) - the initial configuration can be performed in AP mode with the device subsequently operating in client mode. RLW-TH and RLW-THC models then support the LoRaWAN wireless technology featuring a combination of long signal range and very low energy consumption. The product will be delivered with a free Mervis database licence.
A screenshot of the web server interface
|Power supply||5-24V DC, 250ma
|Installation||on-wall installation box (IP20)|
|Air temperature||-40°C / +85°C|
|Relative air humidity||0-90% RH non-condensing|
|CO2 concentration||0 - 10 000 ppm|
|VOC concentration||IAQ Index 0-500|
|Barometric pressure||300 - 1100 hPa|
|Solid particle concentration
|0,0 - 999,9 μg/m3|
|Inputs & Outputs|
|Digital output||max. 24V DC 50mA|
|Wi-Fi (AP client)||802.11 b/g/n 2,4 GHz (REST API)|
|LoRaWAN||Class A, 14dBm, SF 7-12, 868 MHz
(ABT support, OTAA activation)
The development of mentioned sensors is nearing its finish with the official launch being scheduled to June 2019. Info about the availability of sensors will be published on our webpage in the News section and will be also sent in one of our regular newsletters to which you can subscribe on this link.