Wireless Tunnel™ Radio Sensor based on LoRa™ Technology
Wireless Air Quality Sensor
Combines Air Particles, Metal Oxide gases (MOx), Temperature, and Humidity in a single sensor.
Metal Oxide Gases (MOx)
The sensor detects various Metal Oxide (MOx) gases, displaying the value as a VOC Index. Examples of these gases are:
– Acetone (eg. paints and glues)
– Toluene (eg. furniture)
– Ethanol (eg. perfume, cleaning fluids)
– Hydrogen Sulfide (eg. decaying food)
– Benzene (eg. Cigarette smoke)
The VOC Index is a logarithmic scale that is relative to the typical indoor gas composition over the past 24 hours. With a range of 0 to 500, the typical value for a normal environment is 100. Values greater than 100 indicate worsening air quality with a higher concentration of metal oxide gases over the past 24 hours. Values lower than 100 indicate improving air quality.
Air Particles
Detection for 5 different sizes. PM0.5, PM1.0, PM2.5, PM4 and PM10. The sensor is able to measure the mass concentration of particles in the PM1.0 to PM10 range and particle number concentration in the PM0.5 to PM10 range. The typical particle size is also measured. This measurement is based on the average size of the current sample.
An air particle sensor is utilized during indoor air quality (IAQ) assessments of clean rooms and workplaces. The specific type of particles is not detected, but it identifies the quantity or mass of airborne particles. These air particles could be sourced from :
– Exhaust smoke
– Airborne dust particles
– Pollen
Airborne pollutants can be a health hazard, and result in sneezing, headaches, asthma, and so on. In addition, during many agricultural and industrial processes, airborne dust can be a serious hazard forming combustible dust clouds.
Wireless Tunnel™ Monitoring Solutions
| Air Particle Sensor |
Particle Mass Concentration Particle Number Concentration Typical Number Concentration |
| Particle mass concentration range |
PM 1.0 / 2.5 / 4 /10 : 0 ~ 500 μg/m3 |
| Mass concentration size range |
PM1.0 : 0.3 to 1.0 μm PM2.5 : 0.3 to 2.5 μm PM4 : 0.3 to 4.0 μm PM10 : 0.3 to 10.0 μm |
| Mass concentration precision | * PM1 and PM2.5 0 to 100 μg/m3 : ±10 μg/m3 100 to 1000 μg/m3 : ±10 % measured value. * PM4 and PM10 0 to 100 μg/m3 : ±25 μg/m3 100 to 1000 μg/m3 : ±25 % measured value. |
| Particle number concentration range |
PM 0.5 / 1 / 2.5 / 4 / 10 : 0 ~ 1500 #/cm3 |
| Number concentration size range |
PM0.5 : 0.3 to 0.5 μm PM1.0 : 0.3 to 1.0 μm PM2.5 : 0.3 to 2.5 μm PM4 : 0.3 to 4.0 μm PM10 : 0.3 to 10.0 μm |
| Typical Particle size |
0.1 to 10 μm |
| VOC Index Sensor |
Index of Air Quality VOC index, MOx based gas sensor |
| Range |
0 to 500, with 100 as typical air quality < 100 = better air quality > 100 = worse air quality |
| Note |
VOC Index visualizes VOC events on a logarithmic scale, and relative to typical indoor gas composition during the recent 24th. This means that level “typical” refers to the typical conditions of the environment with low and high VOC backgrounds. The scale does not represent absolute concentrations. VOC Index notifies end users or air treatment devices when air pollution changes. |
| Environmental |
|
| Temperature |
|
| Measurement Range | -40°C to +75°C 40°F to +167°F |
| Measurement Resolution |
0.1°C increments 0.2°F increments |
| Measurement Accuracy |
Typical: * ±0.3 from -40°C to +75°C * ±0.4 from -40°F to +167°F Maximum: * ±0.4 at -40°C and ±0.4 at +75°C * ±0.7 at -40°F and ±0.7 at +167°F |
| Humidity |
|
| Measurement Range |
0 to 100% Relative Humidity (RH) |
| Measurement Resolution |
1%RH increments, 0.01%RH sensor reading |
| Measurement Accuracy |
±2%RH @25°C |
| Gateway Sensor Count |
16 (3+13) |
| Status Indication |
Led indication for – Mode – Status – RSSI |
| Operating Environment |
Temperature : Min. -35°C – Max.80°C Humidity: Min. 20% – Max. 80% (Non-Condensing) |
| LoRa (R) Radio Regional plans |
– EU868 : 863~868Mhz, Max TX Power +14dBm, Duty Cycle 1% – US915: 903~915Mhz, Max TX Power +17dBm – AS923 : 920~925Mhz, Max TX Power +14dBm, Duty Cycle 1% – KR920 (Korea) : 922~923Mhz, Max TX Power +14dBm, Duty Cycle 1% – IL917 (Israel) : 915~917Mhz , Max TX Power +14dBm, Duty Cycle 1% |
| Certification |
CC Part15C, CE EN300220-2 |
| Power source | Requires external micro-USB 5V power source Optional 12V input (customer order) |
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