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Auxiliary Equipment

Here at Ralspeed we carry a large range of auxiliary equipment to enable our customers to add value to their application. From simple float switches or conductivity probes through to ultrasonic level measurement we have the answer!

We can also supply pressure switches and transducers as well as flow meters and vacuum sensors. Tailoring our control panels to customer requirements has always been our strength and we continue to add other aux equipment to our range as new solutions come onto the Market.

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Float Switch

The LR02 has been Triton Controls bestselling float switch for over 20 years. Its physically robust and chemical resistant design has made it our customer’s first choice in waste water level control. The LR02 is manufactured using a synthetic rubber sheath with a built in counter balance weight. This, alongside its unique shape prevents build-up of material and maintains its toughness whilst operating in unforgiving environments. 


  • Wastewater and sewerage 
  • Salt water 
  • Vegetable and animal fats 


  • Float size 174x91mm 
  • Maximum submerged depth of 20m 
  • Compressive strength of 482 KN/m2 


Level Transducer

Echomax XPS10, XP15 and XCT transducers use ultrasound to monitor level changes in a wide range of liquids and solids applications. 

  • Integral temperature compensation 
  • 2-wire interconnection 
  • Low maintenance 

All of the Siemens Milltronics ultrasonic transducers can be immersed in the process, are resistant to steam and harsh chemicals and can be installed without flange mounting. 

The XPS10 and XPS15 ultrasonic transducer models are suitable for various distances up to 40 m (130 ft.) and up to a maximum temperature of 95°C (203°F). Two models have FM Class 1, Div. 1 approvals for applications up to a distance of 15 m (50 ft.). 

In applications that require higher temperature, the XCT ultrasonic transducer series can monitor level up to a distance of 12 m (40 ft.) and up to a maximum temperature of 145°C (293°F). During operation, Siemens-Milltronics Echomax transducers emit acoustic pulses in a narrow beam perpendicular to the transducer face. The level monitor measures the time between the pulse and its reflection (echo) to calculate distance. 


Ultrasonic Controllers

Siemens HydroRanger 200 is an ultrasonic level controller for up to six pumps, and provides control, differential control, and open channel flow monitoring (MCERTS). 

For water authorities, water and wastewater treatment works, HydroRanger 200 is an economical, low-maintenance solution delivering control efficiency and productivity needed to meet todays exacting standards. It offers single- or dual-point monitoring with 6 relays standard, as well as digital communications with built-in Modbus RTU via RS-485. 

Siemens HydroRanger 200 is compatible with SIMATIC PDM, allowing for PC configuration and set-up. Sonic Intelligence advanced echo-processing software provides increased reading reliability. 

HydroRanger 200 uses proven continuous ultrasonic echo ranging technology to monitor water and wastewater of any consistency up to 15 m (50 ft) in depth. Achievable resolution is 0.1% with accuracy to 0.25% of range. Unlike contacting devices, HydroRanger 200 is immune to problems caused by suspended solids, harsh corrosives, grease or silt in the effluent, reducing downtime. 

The HydroRanger 200 is available in wall or panel mounting versions. 

  • Monitors wet wells, weirs and flumes 
  • Digital communications with built-in Modbus RTU via RS-485 
  • Compatible with SmartLinx system and SIMATIC PDM configuration software 
  • Single or dual point level monitoring 
  • 6 relays standard 
  • Anti-grease ring / tide mark build-up 
  • Differential amplifier transceiver for common mode noise rejection and improved signal-to-noise ratio 
  • Wall and panel mounting options