Particulates matter, monitor them

Monnit’s Wireless – PM2.5 um Meter measures PM1, PM2.5 and PM10 concentrations in the air and transmits the measurement to iMonnit. Elevated levels of PM10 (2.5-10 um) particle pollution irritate the respiratory tract and eyes; smaller PM2.5 (1.0-2.5 um) particles can penetrate deep into the lungs. As the most dangerous of all, PM1 (0.3-1.0 um) can slip through the lungs and penetrate organs.

The PM2.5 meter 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.

This sensor comes standard with two replaceable AA batteries. The typical battery life is approximately 10 years.

Features

• Impressive wireless range of up to 1,200 feet through walls
• Frequency-hopping spread spectrum (FHSS)
• Improved interference immunity
• Improved power management for longer battery life
• Encrypt-RF® Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
• Over-the-air updates
• Free iMonnit basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email
• Stores 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle)
  • 10-minute heartbeats = ~ 22 days
  • 2-hour heartbeats = ~ 266 days

Applications

• Building/room air quality
• Pollution sensing
• Mines & Quarries
• Cement factories
• Construction/demolition sites
• Petrochemical
• Agricultural/waste
• Waste treatment plants
• Energy exploration and production

 

Gateway Options for Seamless IoT Data Communication

Monnit offers a range of gateway options designed to facilitate wireless sensor data communication within IoT networks. These gateways, serve as crucial conduits for transmitting sensor data to the iMonnit software platform and play a pivotal role in ensuring seamless and efficient data transmission for IoT applications.

Click here to explore the diverse range of gateway devices available >>

Manage Your Monnit Sensors with iMonnit Cloud-based Software

Monnit’s Sensor Monitoring Software, iMonnit, stands as a cutting-edge cloud-based platform and central hub tailored for the seamless management of Monnit sensors. With a focus on data security, all information is safeguarded on dedicated servers running Microsoft SQL Server. This intuitive online user interface serves as a command centre for arranging, monitoring, and modifying device settings to suit individual requirements.

OneTemp provides complimentary activation and setup services for new iMonnit accounts, while a free mobile app empowers users to maintain control at all times. Whether opting for the basic version or upgrading to iMonnit Premiere, users can unlock the full spectrum of features that enrich the Monnit experience.

Click here to explore the software options >>

 

Supply voltage	2.0-3.8 VDC (5.0-12 VDC using power supply) 1
Current consumption	0.2 μA (sleep mode), 0.7 μA (RTC sleep), 570 μA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode), 120.0 mA (Sense or Fan current)
Operating temperature range (commercial version) 2	-18°C to 55°C (0°F to 130°F) with Alkaline Batteries -40°C to 85°C (-40°F to 185°F) with Lithium Battery
Measurement sensitivity	PM1: 0.3 to 1.0 um PM2.5: 1.0 to 2.5 um PM10: 2.5 to 10 um
Counting efficiency	50% @ 0.3 um, 98% @ >= 0.5 um
Effective range	0 to 500 ug/m^3
Maximum range	0 to 1000 ug/m^3
Maximu consistencen error	+/- 10% @ 100 to 500 ug/m^3 +/- 10 ug/m^3 @ 0 to 100 ug/m^3
Response Time	~10 Seconds 3
Active current	~180 mA @ 3.3 battery voltage, ~0.6 W overall
Operating temperature	-10 to 60 C
Operating humidity	0 to 99%
Storage temperature	-40 to 80 C
Mean time to failure	>= 3 Years
Integrated memory	Up to 3200 sensor messages
Wireless range	1,200+ ft non-line-of-sight
Wireless operation	900 MHz-Frequency-Hopping Spread Spectrum 868 MHz and 433 MHz-Frequency-Agile Wireless
Security	Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight	3.7 ounces
Certifications	900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950

¹ Hardware cannot withstand negative voltage. Please take care when connecting a power device.
² At temperatures above 100°C, it is possible for the board circuitry to lose programmed memory.
³ Response time may vary with stability threshold setting and PM concentration. Increasing the stability threshold will improve response time but reduce stability and accuracy of readings. With higher PM concentrations the sensor will acquire stable readings more quickly