TCH Technology - The Infrared Detector Specialist

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Sensa-Bloc II™

Sensa-Bloc II™ provides the sensing that is needed to control all the track side signals.

Sensa-Bloc II™

uses quick plug-in connectors for fast and easy installation to track and throttle. It detects current flow in a given block of track. It can be used for triggering flashing grade crossings, controlling aspect signals, and showing that a given block is occupied by turning on an indicator positioned on a control panel. For more control, there is a potentiometer mounted for adjusting the sensitivity so there are no false indications. Sensa-Bloc II™ is the most inexpensive, most sensitive block detector available.

Installation Instructions

Sensa-Bloc™ $9.95