The Invisi-Guard™ PHT1SP50 Thru-Beam Photo Eye
*Invisi-Guard PHT models have been recently discontinued but, are still supported.
PHT models are now replaced by IG2.
The system includes two independently housed units: an infrared emitting
eye and a receiving that wire directly to your controls. The light beam is
intended to function as a protective line guarding a potentially hazardous
zone. When the light beam is interrupted by an obstruction, a signal is sent
to the motor controls to stop or reverse motion.
Safety Standards and Codes for Motorized
Miller Edge offers a convenient guide to
help you comply with the ANSI/UL325 standard
for gate entrapment protection devices. To
request a printed copy
of this guide, please email firstname.lastname@example.org.
Before designing or motorizing any gate, be
sure to read and understand the
for gate construction.
Since 2009, the International Building Code
(IBC-2009) has required compliance
with the current UL325 safety standard.