The Bently Nevada COMMTEST220 and COMMTEST240 are next-generation portable data collectors designed for efficient and accurate machinery condition monitoring in non-hazardous environments . They are rugged, lightweight (under two pounds) devices that work seamlessly with an industrial handheld and Bently Nevada's System 1 software to form a comprehensive condition monitoring solution .

The COMMTEST220 features two sensor input channels, while the COMMTEST240 offers four channels, allowing for simultaneous data acquisition from multiple points. Both models support a wide range of sensors, including accelerometers, velocity sensors, and displacement probes, with an impressive frequency range up to 80 kHz and spectral resolution of 12,800 lines . High accuracy of ±(0.1% + 1 cpm) ensures reliable data for analysis .

The data acquisition module communicates with the Android-based handheld via Bluetooth, and the handheld runs the S1 Collector app for viewing data and managing routes. Data is transferred to System 1 for detailed analysis, trending, and alarm management via Wi-Fi, cellular network, or USB cable . The handheld also functions as a standard smartphone, allowing users to take pictures, send messages, and track locations on the same device. The system is water and dust resistant, drop-tested, and provides up to ten hours of continuous operation, making it ideal for demanding field use .