Remote Monitoring

Remote Monitoring equipment is used to monitor Cathodic Protection Systems, gathering data and providing valuable information for CP System management. RMU’s are
generally installed near a Cathodic Protection Rectifier but can also be installed at critical structure-to-soil potential test stations, depending on the application requirements.

  • The Remote Monitoring Unit provides remote monitoring and control of the Rectifier Unit.
  • This Monitoring Unit uses GSM and GPRS to navigate & monitor corrosion around pipelines and tank structures.
  • This enables personnel to request and collect Cathodic Protection performance information from any location around the world using cellular networks.
  • Personnel no longer need to travel to a site, not only is this ideal in that it saves time and travel expenses but it can also be beneficial where sites are not easily accessible.
  • The RMU does not only measure the performance of the Cathodic Protection System, it can also pick up any faults that might occur so that they can be repaired quickly.

See more features below.



  • Request for instantaneous values for control mode and alarm
  • Request for 24hr log
  • Can operate individually or integrated with a rectifier
  • Ability to change some control settings remotely
  • 12V SLA Rechargeable battery provides up to 150 hours backup power supply
  • Transmit an SMS/Text to the master station if there is any kind of fault or tampering
  • Uses newest technology
  • Can receive instantaneous values of your cathodic protected system anywhere around the world over an SMS/Text

Power Supply/UPS Module:
  • Power Input: 120-220V AC 50Hz
  • Power Outputs: 15-0-15V AC, Regulated +/-15VDC @ 100mA
  • Battery Charging: 10mA trickle charger for 12VDC SLA Battery
  • Provides UPS supply to the multi-mode controller and GSM module
  • Sets the “AC Supply failure to Monitoring Unit” Alarm signal on interruption of the 220 V AC supply
GSM Module (plus antenna):
  • GSM/GPRS SMS enabled Modem
  • Power Input: 12 VDC
  • Standard Sim card slot (MTN/CELLC/ Vodacom/Telkom)
  • Din rail mount
12V SLA Rechargeable Battery:
  • Provide up to 150 hours of backup supply
Power and signal line protection:
  • 120-220 V AC power is protected by 275 V 15kA MOV
  • TRU output voltage signal: 275 V 15kA MOV
  • TRU output current signal: bidirectional diode across shunt input on PCB
  • Reference Potential signal: 60-0-60V 1.5kA bipolar transorb with 90V spark gap to earth
  • Digital inputs protected to 20V continuous