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Wireless polished-rod dynamometering sensor DDIN-2

This sensor is designed for prompt monitoring of SRP condition. It performs multiple measurements and records stroke and weight value on the polished rod during SRP operation.


  • multiple measurements and recording of stroke and weight value on the polished rod during SRP operation;
  • the wireless controller functions as a visualizer and a recorder for the wireless sensor. The sensor has an integrated power source and no display, keyboard;


  • a smartphone or Hytera based on OS Android can be used as a wireless controller;
  • the wireless controller provides storage of a large number of measurements (depending on memory capacity) and transfer of accumulated data to the database;
  • simple user-friendly interface (the sensor is equipped with battery indicators, diagnostics start by the signal from the controller via wireless interface, all the data is transmitted to the controller , stored there and shown on the display;
  • attachable to a polished rod sensor with a ratchet screw allows minimizing installing time;
  • wireless range of the sensor allows monitoring measurements on the display of the wireless controller at a distance up to 50 meters from the wellhead;
  • sensor battery can be charged under temperatures below zero (-20⁰ C and higher);


Max controlled load on polished rod 15 000 kgf
- polished rod diameter 16 - 39 mm
- rod stroke 0,5 - 9.999 m
Resolution while controlling the load 10 kgf
stroke rate 0,4 – 15 SPM
Battery operating ON-time 2160 hours
Operating temperature range From -40 ˚С to +50 ˚С
Weight 1,35 kg
Data transfer interface Bluetooth
Explosion proof protection / Ingress Protection Rating 1 Ex ib IIB T3 X / IP54


Product specification and user's manual

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