AirQ 300

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AirQ 300 is a wireless controller board that allows the control of a wide array of devices. It also interacts with user as well as with other devices through isolated inputs. AirQ 300 provides 2 relays that can be used to turn on and off lights, to control motors, pumps, valves among and so forth. It also provides 4 isolated inputs that allow to detect the state of external devices or to interact with user through switches. Since all AirQ Control Units can be accessed by the web, AirQ 300 is a really flexible solution to control devices through the internet.

Like all AirQ Networks boards, AirQ 300 is fully integrated into AirQ Networks platform. So it can take advantage of the flexible rule system equipped with all AirQ Control Units in order to build complex applications in just few clicks. AirQ 300 boards are fully accessible by modern mobile devices (iPhone, iPad, Android, Windows Mobile).

AirQ 300 boards provide an integrated Li-Po battery charger and manager allowing boards to be used even in case of power failure.

AirQ 300 control board


Quick start guide

Powering board

There are 3 different ways to power an AirQ 300 board: using a common DC Barrel Jack, a 2 wire DC power supplier or a 7.4V Li-Po battery pack.

DC Barrel Jack

DC Barrel Jack

AirQ 300 provides a DC power jack/connector. This is a common barrel-type power jack for DC wall suppliers that have a 5mm jack, with a 2.1mm center pole diameter. This kind of power suppliers are really common and inexpensive. A switching power adapter is strongly recommended. Power adapter must provide at least an output power of 1A. Be aware that center pole is the positive one.

Power Connector Terminal block

Power Connector Terminal

Another power alternative is offered by AirQ 300 boards: a two pole euro-style terminal block. It's really useful when the board is powered by DIN rail power adapters. The correct polarity is shown on the board. Power adapter must provide at least an output power of 1A.

Backup battery

Li-Po battery socket

AirQ 300 includes a complete Li-Po charger and management circuit. This allows the board to keep working in case of power failure. The Li-Po circuit is designed to recharge a 7.4V Li-Po battery pack. The battery charger works with batteries from a capacity of 500mAh up to 4Ah. The correct polarity is shown on the board. Be aware that is really important to respect the right polarity to avoid board damage and battery explosion. During charging operation the charging LED (reported on board as CHG) will turn on. The charging LED color is red. When charge is completed the LED will automatically turn off. Charging circuit is designed to avoid overcharging the battery. For this reason, if the battery is already fully charged the circuit will not start charging battery (LED will remain off).

The battery charger and management circuit is NOT compatible with Li-On, Ni-Mh, Ni-Cd and Alkaline batteries. Using any of these batteries may cause board damage and battery explosion!

Establishing connection to Control Unit

When an AirQ 300 board is powered up, STATUS LED blinks until the board is not linked to Control Unit. A valid connection is established when LED stops blinking and stays on. This feature is really useful during installation process to check if AirQ300 and the Control Unit can exchange messages. After a connection is established, AirQ 300 will check connection again after about 30 seconds. Press TEST button to force it to check again.


AirQ 300 is the most flexible and reliable solution to control device status through the web. Thanks to AirQ Networks sNET wireless technology, AirQ 300 boards can be installed anywhere is needed, without using cables and dedicated installations.

AirQ 300 provides two independent relays that can be used to control external devices such as:

  • Lights
  • Motors
  • Valves
  • Electronic door locking
  • Alarm siren
  • Devices controlled by discrete signal

AirQ 300 is also equipped with 4 opto-isolated inputs that allow to interact with users and other devices, such as:

  • Switches
  • Alarm systems
  • PLC systems that react to discrete signal
  • Industrial control boards

AirQ 300 control board provides a complete battery charger and management circuit allowing the board to be powered by an external Li-Po battery pack. Thanks to this functionality, AirQ 300 boards can be used even in case of power failure offering the best solution on the market to remote control devices. Moreover, AirQ 300 has been designed to reduce power consumption: it can be powered by a 4Ah battery pack up to 48h.

To see all components of AirQ 300, move the mouse over of the following image.

DC Barrel Power JackPower Connector BlockBattery ConnectorTest ButtonInputsRelaysAntennaRelaysRelays LedLiPo Charger LEDInputs LEDStatus LedAirQ 300
About this image


AirQ 300 is designed to be a really flexible solution with a virtually unlimited number of applications. Being a radio-controlled board, it has a wide range of applications, fom home automation to industrial control. Below there are some of the most obvious applications. More applications are described in detail in our Applications Center.

Lights control

Light control is the most simple and common application of AirQ 300 boards. Thanks to AirQ Networks radio-controlled system, AirQ 300 boards can be placed anywhere needed, without using dedicated cables (only main power needed). Using multiple AirQ 300 boards and inexpensive switches, it is possible to light on wide areas (like open spaces or large industrial buildings). Moreover, since all AirQ 300 boards can be controlled by the web through an AirQ Control Unit, lights can be conveniently turned on/off by web. The AirQ Rule System allows to set up complex rules as well time based lightning.

Home automation

Home automation is the killer app of this century thanks to large diffusion of internet connections and mobile devices like smart phones and tablets. However, dedicated domotics systems can be really expensive especially for pre-existing installations. AirQ 300 boards are successfully used to build up simple, smart and effective home automation solutions. Being wireless controlled board, AirQ 300 board can be placed where needed without altering existing wiring.

Remote control

Power failure detection

There are contexts in which detection of main power failure is mandatory. For instance, almost every server room is equipped with UPS systems that kick in when the main power supply goes out. However knowing when this occurs is a different thing. While the more expensive UPS systems have some kind of management and alerting system, the most popular ones lack this feature. AirQ 300 boards are able to signal to AirQ Control Unit that main power is off in order to set dedicated alarms by SMS, E-Mail. Moreover, is also possible to interact with other AirQ 300 boards to take appropriate actions (turn on/off a relay). Our Applications Repository contains a detailed description about server room monitoring and other power failure applications.



AirQ 300 Specifications as release 1.1
Power 12 VDC @1A - Power switching adapter is strong recommended
Power plug DC Barrel Jack 5mm/2.1mm center pole. Center pole is the positive one
2 pole euro-style terminal block
Backup battery Integrated Li-Po charger and manager for 7.4V battery packs. Supports battery packs from 500mAh to 4Ah.
Power consumption ~100mAh with all inputs and output running; ~630mAh with all inputs and output running during battery charging
Connectors n°4 two pole input terminals
n°2 three pole output terminal
n°1 two pole power terminal
n°1 DC Barrel Jack
n°1 Battery connector
Inputs n°4 digital inputs - Provided contacts must be voltage free (clean contact)
Outputs n°2 SPDT Relay
Relays specifications
Rated load (resistive / cosφ=1) 5A @250 VAC (NO/NC)     5A @24 VDC (NO/NC)
Rated carry current 5A
Max. switching voltage 250 VAC     24 VDC
Max. switching current 5A
Contact resistance 100 mΩ max
Life expectancy 10M operations mechanical / 100k at maximum load
LED Indicators n°4 input
n°2 output
n°1 status
n°1 battery charging
Wireless interface 434 Mhz
Operative distance More then 500 meters in open space
sNET Node type End Device - Router
Dimensions 84mm x 86mm x 20mm
Weight 100gr
Operating temperature -25 +55°C
Last hardware release AirQ 300 - r1.1
Last firmware release sNET protocol v. 4.0
Certifications RoHS Compliant; CE

Control board by AirQ Networks consoles

Like all AirQ Networks devices, AirQ 300 boards have to be controlled by an AirQ Control Unit. Control Unit's software is accessible by web and an AirQ 300 board is represented as shown in following picture.

AirQ 300 board interface

Next table describes meaning and use of each icon.

Icon/Compoent Description
Boardaddr.png Unique network address of each board
Statushistory.png Provides access to history of all board status change
Rules.png Provides access to board rules
Pauserules.png Suspend all rules associated to the board
Playrules.png Starts all rules associated to the board
Power.png Signals that board is powered
Battery.png Signals that board is powered by backup battery
Signallevel.png Provides visual feedback about signal level
Nosignal.png Signals that board is unlinked to Control Unit
Signalfw.png Signals that message coming from board has been repeated by a Router
In-on.png Prompts that specified input is ON (closed contact)
In-off.png Prompts that specified input is OFF (open contact)
Relay-on.png Prompts that specified output relay is ON; clicking on the icon cause the corresponding relay to turning OFF
Relay-off.png Prompts that specified output relay is OFF; clicking on the icon cause the corresponding relay to turning ON
Relay-refresh.png Signals that given relay command (ON or OFF) has been scheduled. See what are sNET scheduled commands
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