IDEM's GLHL/GLHR is a robust die-cast Heavy Duty Safety Rope Pull Switch which is designed to protect long conveyor lengths where protection is required up to 125m (using 2 switches) or up to 100m where just one switch is required. The die-cast housings have been manufactured to provide a robustness that can survive indoor and outdoor use. A high visibility bi-colour LED ensures that switch status can be easily viewed from a distance. They have 4NC 2NO contacts that ensure flexibility with all modern control applications and are available with optional Explosion Proof contact blocks. A Low Temperature -40C version (GLHL-FZ and GLHR-FZ) is also available.