Controls head pressure to air conditioning and refrigeration systems by increasing and reducing fan speed with temperature on the condenser coil. There is also a heat pump model for connection to the reversing valve.
For utmost security! The versatile Hi-Level Water Sensor is available with two different sensor options. The Hi-Level Water Sensor can be used in conjunction with most pumps that do not include high level safety. It also has 2 levels of sensing - high and low, both with N.O, N.C & C.

These slim, stylish units are designed for supply/extract ventilation systems. The controller can easily be installed either as a flush-fit unit or as a surface mount unit . The fascia and enclosure are designed to be slim and unobtrusive, while the smooth keypad provides a simple interface for the end user.
Designed to protect 3 phase motors and industrial equipment from over-heating due to a phase failure. When one phase goes down motors can seem to run normally. It is not until the motor overheats that it is detected, which may be too late.