Wireless Air Particulate – ALTA Monnit

Wireless Air Particulate Meter AA

ALTA Monnit Wireless Air Particulate Meter AA

Art #:MNS2-8-W2-AQ-P25A-LPO

Frequency:868 MHz (Euro)

Battery: 10 years

Range: 360 metres

Wireless Air


Product Description

The ALTA wireless PM2.5 sensor measures PM1, PM2.5 and PM10 concentrations in the air and transmits the measurement to iMonnit. The PM2.5 sensor works by turning on a small fan at the beginning of a measurement cycle to bring in a volume of ambient air and measuring the particulate matter (PM) content of that sample volume. The sensor measures PM content using a laser that scatters based on the number and size of particles suspended in the air. It is important to keep the inlet ports of the sensor clear to ensure proper readings.


ALTA – Leading Enterprise Grade “Internet of Things” Solutions

ALTA sensors offer 3 to 4 times the range of standard sensor platforms, extending non-line-of-sight reach to an exceptional 1,200+ feet through walls (12-14 walls typical). Using Frequency-hopping Spread Spectrum (FHSS) also allows ALTA sensors to have better interference immunity from other wireless devices.

Superior power management provides ALTA sensors with almost twice the battery life of Monnit’s standard wireless sensors.

      – Coin cell sensors typically last 3+ years.
      – AA and Industrial sensors typically last up to 12+ years.

ALTA products employ Monnit’s new Encrypt-RF® Security (256-bit Diffie Hellman key exchange and AES-128 CBC encryption for all sensor data messages), so security is maintained at all communication points from sensor to gateway, gateway to software, then back again.

Integrated on-board data storage allows ALTA sensors to store data messages if communication to a wireless gateway is disrupted (power outage, Internet outage, or out of range). Messages that can’t be delivered will be time-stamped and stored in memory (up to the last 3100 messages) until communication with the gateway is restored, at which point the messages will all be transmitted.

Over-the-air updates allow ALTA products to be updated remotely if new fixes or features become available.

The standard version of this sensor is powered by two replaceable 1.5 V AA sized batteries (included with purchase). This sensor is also available with a line power option. The line powered version of this sensor has a barrel power connector allowing it to be powered by a standard 3.0 – 3.8 V power supply (Included with Line Power option upgrade). The line powered version also uses two standard 1.5 V AA batteries as backup for uninterrupted operation in the event of line power outage.

Power options must be selected at time of purchase, as the internal hardware of the sensor must be changed to support the selected power requirements.

Box content

  – Wireless Sensor
  – Mounting Hardware
  – 2 x AA Batteries
  – Power Supply


Measurement SensitivityPM1: 0.3 to 1.0 um
PM2.5: 1.0 to 2.5 um
PM10: 2.5 to 10 um
Counting Efficiency50% @ 0.3 um, 98% @ >= 0.5 um
Effective Range0 to 500 ug/m^3
Maximum Range0 to 1000 ug/m^3
Maximum Consistency Error+/- 10% @ 100 to 500 g/m^3
+/- 10 ug/m^3 @ 0 to 100 ug/m^3
Response Time~10 Seconds
Active Current~180 mA @ 3.3 battery voltage, ~0.6 W overall
Operating Temperature-10°C to 60°C
Operating Humidity Range0 to 99%
Mean Time to Failure>= 3 Years

ALTA AA Specifications

Battery Type2 Replaceable AA 1.5 V Batteries
Dimension4.375 in x 2.470 in x 1.12 in
Supply Voltage2.0 – 3.8 V (2 x AA 1.5V Batteries for backup: Power Supply provided)
Battery LifeMains PSU Provided, AA Batteries for backup
Max Operating Temperature Using AA Alkaline-18°C to 55°C (0°F to 130°F)
Max Operating Temperature Using AA Lithium-40°C to 60°C (-40°F to 140°F)
Optimal Battery Operating Temperature+10°C to +50°C (+50°F to +122°F)
Enclosure MaterialABS

ALTA 900 MHz Specifications

Operating Frequency900 MHz Operating Frequency
CertificationsComplies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)
Complies with Industry Canada standards. (IC: 9794A-G2SC1)
Device RangeDevice Range Up to 1,200 ft. non-line-of-sight, wireless device range*
SecurityEncrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)

Specifications Image


Suggested Application Uses for This Sensor

  – Building/Room Air Quality

  – Pollution Sensing

  – Mines and Quarries

  – Cement Factories

  – Construction/Demolition Sites

  – Petrochemicals

  – Agricultural/Waste

  – Many additional applications