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Frequency Meter
A specialized meter for measuring frequency and speed
The APM Frequency Meter is a specialized meter for measuring frequency and speed. It’s used in applications including marine, leisure and material handling.
Benefits include:
- Accurately measures DC pulses from a sensor
- Supports a wide range of inputs between 2-400Hz
- 0.5% accuracy at 25C

Specifications
APM Input | 2 – 400Hz |
---|---|
PSU | 12 – 24V AC/DC |
Outputs | Output 1: Digital (open collector) or Analog (4-20mA), Output 2: Digital (open collector) or Analog (4-20mA) |
Communication | Modbus RTU Optional |
Dimensions | 72mm x 72mm x 53mm |
Screen Size | 57mm x 53mm |
Accuracy | 0.5% |
Certifications | CE, cUL, IP65, NEMA 4 & 12, ROHS, UL |
Part Numbers
APM-FREQ-APO – positive LCD, with outputs
APM-FREQ-ANO – negative LCD, with outputs
By Request: Modbus Connectivity
APM-FREQ-APS – positive LCD, with Modbus
APM-FREQ-ANS – negative LCD, with Modbus
APM-FREQ-ANO – negative LCD, with outputs
By Request: Modbus Connectivity
APM-FREQ-APS – positive LCD, with Modbus
APM-FREQ-ANS – negative LCD, with Modbus