The Trumeter APM is the most visible, easy to use, multi-format, programmable panel meter on the market.
The APM digital frequency meter is the most easy-to-use programmable frequency meter on the market. It boasts excellent visibility with 15 built-in configurations and is highly customisable for your requirements. The meter allows AC frequencies of up to 400 Hz to be measured directly by the meter itself. It can also accurately measure DC pulses after a simply configuration using the software- which is free to download from Trumeter.
The features of this APM frequency meter make it a suitable choice in many applications, including mains, industrial and aviation.

• Large 4-digit LCD display
• 40 segment bar graph display
• Separate starburst display area for annunciators, custom messages and alarm information
• User-adjustable back light brightness, colour and intensity
• 0.1% accuracy
• Wide viewing angle
• Custom annunciators
• 2 Independent outputs (output models only)
• 2 Independent alarm set-points
• 0-400 Hz input range
• 4-20 mA analogue monitor output
• USB port to connect to PC for custom user settings
• IP65 protection

All Trumeter products come with a 3 year manufacturer's warranty

Trumeter APM Digital Frequency Meter