Power Monitoring Instrumentation

Mains Frequency To Current / Voltage Converter

The AlphaPOWER Range includes a mains frequency to dc current or voltage converter, the E1-FREQ.

The measured input is isolated, filtered, squared-up and offered to a precision frequency to current converter. The current is amplified and compared to an accurate reference. A symmetrical dc amplifier converts the resultant to the required voltage or current output suited to driving meters, computer inputs and process control systems. Using the latest technology in converter integrated circuits, dc amplifiers and reference circuits, the E1-FREQ offers exceptional accuracy and stability with increased immunity to spikes and distorted waveforms. The E1-FREQ is housed in polycarbonate plastic enclosure suitable for mounting on DIN rail.

Product Power Mounting SIL Downloads
E1-FREQ Mains or DC DIN Rail Mounting No



Find out more

Our innovative instruments and systems have been used by all sectors of industry for over 50 years.

  • Probes, sensors and signal conditioning. 
  • Cloud-based Monitoring Systems engineered to your specification.
  • Remote Control and Monitoring Systems.


Find out more

Providing excellent service to all our customers is what Lee-Dickens is all about. In response to changing customer needs we have continued to adapt our product range and equally the services that we offer.


Our experienced Engineers can offer all the services necessary to take any product from concept through to full production.  

Our Cloud Hosted Monitoring Systems and IIOT services are attracting more amd more subscribers, and our commitment to customer service means our support team regularly exceed customers' expectations.