The 1L710 Series relays are solid state liquid level detecting relays with electromechanical output contacts. Designed for application on auxiliary mains voltages the 1L710 provides an isolated low voltage to the liquid immersion probes. Due to the low voltage AC signals applied between electrodes, the effects of damaging electrolytic action is eliminated. The unit is ideally suited for measuring high and/or low levels of conductive liquids in storage tanks wherever high accuracy and reliable, maintenance free operation is essential. The 700 Series range of electronic measuring relays are manufactured as a modular approach to electrical system protection & control. Designed to meet rigid Australian & international specifications the 700 Series provide a flexible, cost effective & extremely reliable solution for a multitude of applications under electrically hostile conditions.