IoT Long Range Wireless Pulse Frequency Meter

IoT Long Range Wireless Pulse Frequency Meter Sensor

Introducing NCD’s Long Range IoT Wireless Pulse/Frequency Meter, boasting up to a 2 Mile range using a wireless mesh networking architecture. It samples frequency and duty cycle and internally adjusts its time base to maximize output resolution and minimize error.  The complexities of adaptive frequency measurement are completely abstracted from the user, as this device delivers full pre-processed transmissions on at a user defined interval.  This device enters a ultra-low-power state between transmissions to preserve battery life.

This IoT Wireless Pulse/Frequency Meter has an additional feature of detecting change in frequency and duty cycle at user defined detection time intervals and sending out data if the change is greater than a preset range. This change detection feature can be enabled/disabled by the user and works for both frequency and duty cycle against a single change in percentage and detection time configuration. To minimize power consumption, the sensor sleeps during the time it is not detecting a change. Both of these features work in parallel to support multiple application areas in one package.

Powered by just 2 AA batteries and an operational lifetime of 500,000 wireless transmissions, a 10 years battery life can be expected depending on environmental conditions and the data transmission interval.  Optionally, this sensor may be externally powered.

Frequency Sensor Ratings

• 24-bit Frequency with Pre-Processed output in Millihertz
• Frequency Range 2 Hz to 10k Hz
• Internal Processor Frequency Resolution ±1% Error
  • 2     to 12       Hz : 0.0004 Hz
  • 12   to 100     Hz :   0.002 Hz
  • 100 to 10000 Hz :     0.25 Hz
• 16-bit Duty Cycle Pre-Processed Output
• Duty Cycle Range of 10% to 90%
• Internal processor Duty Cycle Resolution
  • 2     to 100      Hz : 0.02 %
  • 100 to 10000 Hz :  0.25 %
• Max Duty Cycle Error 0.02 to 0.25%

The long range, price, accuracy, battery life and security features of Long Range IoT Wireless Frequency Meter makes it an affordable choice which exceeds the requirements for most of the industrial as well as consumer market applications.

Note: By default the change detection feature is disabled to save the battery life.

Receiving Data From IoT Wireless Pulse Frequency Meter Sensor

This device sends data periodically, based on user-preset timing intervals and on state change of the contact closure inputs.

Transmission Interval

This device sends data periodically, based on user-preset timing intervals.
This device sends data when input thresholds exceed user-defined preset limits.

Wireless Pulse Counter Application

• Wireless Frequency Monitoring
• Wireless Pulse Width Measurement
• Flow Meter Monitoring
• Tachometer Interface