VM4
Wireless monitoring for rotating machinery

Take your condition monitoring program to the next level with the Vibration Mote Model 4 (VM4), our 4th generation wireless vibration sensor, designed for seamless integration into your existing maintenance program. Whether you’re monitoring motors, pumps, compressors, or fans, the VM4 enables efficient, wireless diagnostics for all your critical rotating equipment. Empower your team with remote monitoring capabilities, reduce the need for on-site inspections, and minimize downtime.

    KEY FEATURES

  • 3-Axis Vibration + Temperature
  • Running Speed Detection (Pro Model)
  • WiFi enabled & battery powered
  • Easily installs in minutes

VM4 DATASHEET

How it Works

  • Vibration Motes

    Easily mount on rotating machines and send vibration & temperature data securely to the cloud

  • ARO Cloud

    Predict asset health & optimize performance using machine learning & deep asset knowledge

  • Apps

    Visualize asset health & performance and receive real time alerts from anywhere

playSEE HOW IT WORKS

How it Works

  • Vibration Motes

    Easily mount on rotating machines and send vibration & temperature data securely to the cloud

  • ARO Cloud

    Predict asset health & optimize performance using machine learning & deep asset knowledge

  • Apps

    Visualize asset health & performance and receive real time alerts from anywhere

playSEE HOW IT WORKS

The most compact, truly wireless vibration sensor

Predictive maintenance of rotating machines has never been easier. The wireless Vibration Mote is designed to continuously monitor your critical industrial assets so you can focus on the work that matters.

  • Motors
  • Pumps
  • Fans
      • Compressors
      • Gearboxes
      • And more

SEE APPLICATIONS

Choose from two models

VM4 is recommended for fixed-speed rotating equipment and can detect mid-stage bearing wear and common shaft-related defects like misalignment, looseness and imbalance in most motors, pumps and fans.

VM4 Pro is recommended for variable speed, batched and spared assets, and can detect the same faults as the VM4 in addition to early-stage bearing wear and gear mesh issues in motors, pumps, fans, compressors and gearboxes.

VM4VM4 Pro
Accelerometer TypeTriaxial MEMSTriaxial MEMS
Frequency Response1.6 kHz5.5 kHz
Temperature Sensor
Running Speed Sensor
Ideal for detecting:
Machine Imbalance
Structural Looseness
Pump Cavitation
Shaft Misaligment
Late Stage Bearing Wear
Early Stage Bearing Wear
Gear Mesh Defects

Model 1

Accelerometer

Triaxial MEMS

Frequency Response
5 – 1600 Hz
Ideal for detecting:
  • Machine Imbalance
  • Structural Looseness
  • Pump Cavitation
  • Shaft Misalignment
  • Late Stage Bearing Wear
  • Early Stage Bearing Wear
  • Gear Mesh Defects

Model 2

Accelerometer

Triaxial Piezoelectric

Frequency Response
5 – 5500 Hz
Ideal for detecting:
  • Machine Imbalance
  • Structural Looseness
  • Pump Cavitation
  • Shaft Misalignment
  • Late Stage Bearing Wear
  • Early Stage Bearing Wear
  • Gear Mesh Defects

Simple. Smart. Powerful.

Truly Wireless

The Mote is a fully wireless device that has no cables or external antenna. It uses WiFi to send full vibration waveform and temperature data to the Petasense Asset Reliability & Optimization Cloud. If WiFi goes down, the Mote will store up to 50 high-res readings or several months of overall readings which will be pushed automatically once connection is reestablished.

Battery Powered

The VM4 is powered by standard CR123A batteries. The batteries are field replaceable and last up to 5 years with standard settings. The VM4 Pro provides smart battery management using event detection that enables data collection only on specific triggers to optimize battery life.

Easy Installation

Install the VM4 in minutes without any specialized training. Mount with industrial-grade steel epoxy or stud mount using a ¼” 28 UNF tapped socket on the base of the device.

Compact and Rugged

At just 3.5″ in height and 1.75″ in diameter, the VM4 can be installed in the tightest of spaces. Its enclosure consists of a polycarbonate cover and a corrosion-resistant, stainless steel base (SS316). Suitable for indoor or outdoor use (IP67) and is certified for use in Class 1 Div 2 environments. The device is certified for FCC, CE, UL746C, RoHs and NEMA 250. The cover is F1-rated material for UV resistance.

Enterprise-level Security

The Mote connects to the Cloud using TLS 1.2 over a TCP connection. Client certificates are used to identify the device on the server. AES-256 ciphers are supported for communications. Access to the Cloud is secured using TLS 1.2.

Smart Measurements

The VM4 Pro uses machine learning at the edge to offer sophisticated event-based measurement, collecting sensor readings at the perfect time. Take readings only when the asset is running or operating at a certain speed range. The VM4 Pro can even be configured to capture more comprehensive sensor readings automatically based on the results of prior measurements.