Flash'O sensor

The Flash’O sensor is a autonomous SIGFOX TM meter interface radio transmitting the accumulated flash LED numbers from any pulse meters : Water, gas, electricity, energy.
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Countries adapted for RC1

Commercially available


Made by

The SIGFOX TM FLASH’O SENSOR from nke Watteco. is a long range, low power consumption, high performance and high quality sensor. It operates with any commercial electronic meter products equipped with a blinking LED and provides connection to the SIGFOXTM wireless network.

Flash’O counts and accumulates the number of LED flashes that occurred since it has been commissioned. Based on the Impulsions per kWh or Wh indicated on the meter, the energy and power consumption can be computed.

The optical probe is easily attached either by magnets or by velcro. Cable-length is approximately 0.5m.

The accumulated number of flashes can be locally stored, concatenated and compressed. This unique batch mechanism significantly reduce the amount of data transmission for demanding applications such as load curve and drastically increase the autonomy.

Powered through a 3.6V lithium battery, in data compression mode, the estimated autonomy is up to 12 years when transmitting data one time per day and up to 8 years when reporting data one time per hour.

Downloadable resources
  • SIGFOX- Flash'O- Data Sheet -v1.1.pdf

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Sigfox Ready

Class 0

End Product Certificate P_001D_1E68_01



Commercially available
Production capabilities

1,000-10,000 items

Technical Details

Product casing

Dimensions (in mm): 84 x 82 x 55

Weight: 200gr



Mandatory - Internal


Battery life: 12 Years

Battery type: Not Replaceable

Embedded Software

Flashable Firmware: No


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