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Monnit Enterprise Air Velocity/Speed Wireless Sensor

Manufacturer:
This sensor measures the pressure difference between its two ports, accounts for ambient temperature and altitude, and determines system airflow speed in meters per second (m/s).
Part Number: MNS2-4-W2-PS-AV-LPO
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$1,188.00 ex GST
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Run at full speed

Monnit’s Enterprise Air Velocity/Speed Wireless Sensor helps facility managers and maintenance techs gauge and track HVAC performance by measuring system airflow and building/room pressure.

If air velocity (speed) deviates from user-set limits, an alert is issued instantly via text, email, or call. Early notifications allow HVAC contractors or maintenance techs to prevent failure (or predict and shorten downtime). Collected data also enables facility maintenance professionals to maintain comfort and proper ventilation, as well as track air volume filter status.

This air velocity/speed sensor measures the pressure difference between its two ports, accounts for ambient temperature and altitude, and determines system airflow speed in meters per second (m/s). The sensor is calibrated, temperature compensated, and has a -50 m/s to +50 m/s measurement range.


Maintain comfort and proper ventilation

The Wireless Air Velocity Sensor measures the pressure difference between two input ports, the temperature, and altitude determines the speed at which the air is moving in a system and transmits the measurement to iMonnit. When viewing the sensor from the top, the right inlet port is the positive or high side pressure input. When the pressure on this port is greater than the left port the sensor produces a negative pressure reading. When the pressure is greater on the left port the sensor produces a positive pressure reading. Combined with the temperature and the altitude, the sensor determines at what rate the air is flowing in a system.

This sensor come 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)
  • 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
  • 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


Applications

  • Hospitals
  • Duct pressure
  • Building/room Pressure
  • Variable air volume filter status
  • Air Flow
  • Computer Rooms


IMPORTANT - Sensor Operation

Please note: this sensor requires both an applicable Gateway and iMonnit software to operate. For further information, please refer to the tabs above or related products below.


Monnit Gateway Options

An integral component of any IoT network is the gateway. A gateway device allows for data from sensors to be transmitted to the iMonnit software platform.


Monnit Ethernet Wireless Gateway 4

Monnit’s Ethernet Gateways allow your Monnit Wireless Sensors to communicate with the iMonnit™ Online Wireless Sensor Monitoring and Notification System without the need for a PC. Simply provide power and plug the gateway into an open Ethernet network port with an internet connection. It will then automatically connect with our online servers, providing the perfect solution for commercial locations where there is an active internet connection.

Learn more about the Ethernet Wireless Gateway 4>>



Monnit 4G + Ethernet IoT Gateway

The ALTA® by Monnit Wireless IoT Gateway combines a 4G LTE CAT-M1/NB2 cellular engine and Ethernet platform with Monnit’s wireless access point network to aggregate and communicate data from Monnit ALTA Wireless Sensors. The ALTA IoT Gateway allows ALTA Sensors to operate on the world’s leading cellular networks and stay connected to the Internet. The gateway uses AC main power but also has redundant power through a battery backup lasting up to 60 hours.

To meet the global demand for enterprise IoT deployment, the IoT Gateway communicates with the cloud-based iMonnit® monitoring software via cellular transmission, making it ideal for remote locations or where the Internet isn’t available. The RJ-45 Ethernet jack allows local device configuration, diagnostics, and connectivity backup. The IoT Gateway is instrumental in sending sensor notifications via text, email, or call if user-defined conditions are met or exceeded.

Learn more about the 4G + Ethernet Wireless Gateway 4>>


Online Sensor Monitoring Software

iMonnit is a cloud based mobile internet platform and central hub for managing Monnit and ALTA products. All data is secured on dedicated servers operating Microsoft SQL Server. This online user interface is where all your device settings can be arranged, supervised, and modified to reflect your unique environment. OneTemp will look after the activation and setup of your new online iMonnit account free of charge. There is also a free mobile app for you to stay in control at all times. Start with the basic version or upgrade to iMonnit Premiere to enjoy the full features your Monnit experience can offer.


iMonnit Basic Vs Premiere:

  • Basic - Free with no ongoing costs
    Monnit Basic is included for free with all wireless sensors, providing basic features for you to configure and monitor your sensors online. These basic features only support one network and one registered user on an account.
  • Premiere - Minimal Annual Fee
    iMonnit Premiere allows for enhanced functionality of your wireless sensors and includes an advanced software feature set at a low annual cost. All of iMonnit's advanced features are availble for configuration. You can have more sensors on your account, support multiple users, and view floorplans for all your sensors.

Learn more about the iMonnit Premier Online Software>>

 


Technical Information

Supply voltage 2.7-3.8 VDC (3.0-3.8 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)
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
Pressure range -500 Pa to 500 Pa
Accuracy +/- 0.5 m/s
Resolution 0.1 m/s
Allowable overpressure 100 kPa
Rated burst pressure 500 kPa
Max humidity for long-term exposure 40°C dew point
Range at 0 m Altitude
Range at 5000 m Altitude
Range at 8000 m Altitude
0-30m/s
0-40m/s
0-50m/s
Span repeatability 0.5% of reading
Span shift due to temperature variation < 0.5% of reading per 10°C
Offset stability < 0.05 Pa/year
Calibrated for Air, N2
Media compatibility Air, N2, O2, non-condensing
Temperature measurement range -40°C to 85°C (-40°F to +185°F)
Calibrated temperature measurement range -20°C to 85°C (-4°F to +185°F)
Temperature resolution 0.1°C
Temperature accuracy +/- 2°C (-10°C to +60°C)
+/- 3°C (-40°C to +85°C)
Temperature repeatability +/- 0.1°C
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


*Hardware cannot withstand negative voltage. Please take care when connecting a power device.
**At temperatures above 100°C, it is possible for the board circuitry to lose programmed memory.

Run at full speed

Monnit’s Enterprise Air Velocity/Speed Wireless Sensor helps facility managers and maintenance techs gauge and track HVAC performance by measuring system airflow and building/room pressure.

If air velocity (speed) deviates from user-set limits, an alert is issued instantly via text, email, or call. Early notifications allow HVAC contractors or maintenance techs to prevent failure (or predict and shorten downtime). Collected data also enables facility maintenance professionals to maintain comfort and proper ventilation, as well as track air volume filter status.

This air velocity/speed sensor measures the pressure difference between its two ports, accounts for ambient temperature and altitude, and determines system airflow speed in meters per second (m/s). The sensor is calibrated, temperature compensated, and has a -50 m/s to +50 m/s measurement range.


Maintain comfort and proper ventilation

The Wireless Air Velocity Sensor measures the pressure difference between two input ports, the temperature, and altitude determines the speed at which the air is moving in a system and transmits the measurement to iMonnit. When viewing the sensor from the top, the right inlet port is the positive or high side pressure input. When the pressure on this port is greater than the left port the sensor produces a negative pressure reading. When the pressure is greater on the left port the sensor produces a positive pressure reading. Combined with the temperature and the altitude, the sensor determines at what rate the air is flowing in a system.

This sensor come 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)
  • 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
  • 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


Applications

  • Hospitals
  • Duct pressure
  • Building/room Pressure
  • Variable air volume filter status
  • Air Flow
  • Computer Rooms


IMPORTANT - Sensor Operation

Please note: this sensor requires both an applicable Gateway and iMonnit software to operate. For further information, please refer to the tabs above or related products below.