The Bently Nevada 3500/54 133396-01 is an electronic overspeed detection system module that belongs to Bently Nevada’s 3500 series of mechanical monitoring systems. Here are the details of the product:

Product characteristics
High reliability: Designed for stable operation in harsh industrial environments to ensure long-term reliability.
Fast response: The ability to respond quickly to speed changes to ensure that an alarm is issued in time when overspeed conditions occur.
Easy installation and maintenance: Easy to install and maintain.
Redundant design: can be combined with other modules to form a redundant system, improve the reliability of the system.
Technical specification
Input signal: Receives a signal from a speed sensor or other related equipment, the signal type may include analog or digital signals.
Output signals: Analog and digital outputs are available and can be integrated with the control system.
Working voltage: 24VDC.
Operating temperature range: -30°C to +65°C.
Size and weight: 170mm x 105mm x 32mm, the weight is about 120g