Dual Action Tension Sensor DATS3

The patented Nemtek Dual Action Tension Sensor DATS3 can detect a change of tension in the fence wire. It uses the electric fence monitoring circuit to create an alarm condition on the energizer. The dual action increases the likelihood of an intruder being detected and reduces the possibility of tampering. There are two models available to cater for different wire types; the DATS3/XL is used with the galvanised and aluminium fence wires and the DATS3/SS for the stainless steel wires. Detection range (straight line) up to 50m.

Brochure Nemtek DATS2 and DATS3
Installer Manual for DATS3


  • Is paired up with the Hybrid Compression Spring CNT3HB or CNT4HB. This is so that the tension in the fence wires can be adequately maintained
  • Detects a change in tension on a fence line
  • Detects an open circuit at its first-stage trigger
  • Detects a dead short at its second-stage trigger
  • Constructed from robust material to suit all wire types up to 2.5mm
  • Easy to install and retrofit onto most existing Nemtek electric fences


Weight N/A

304 Stainless steel
UV stabilised glass filled nylon
XL Galvanised



IP rating



170(L) x 60(H) x 46(D)mm (including screws)

Operating detection range

~220N – ~650N

Operating tension range

~20N – ~200N

Operating environment

-20°C – 80°C @ 100% RH (condensing)

Operating voltage

~750V – 12 000V (pulse duration <10msec)

Stock CodeDescription

Dual Action Tension Sensor 3 SS304


Dual Action Tension Sensor 3 XL Galvanised