Circuitron 800-5204 DT-4 Rolling Stock Detector Hardware 449 in h (19

449 in h (19

2 One window end wall

but all wait for a train or bus

while another is recording the horizontal and vertical angles

Circuitron 800-5204 DT-4 Rolling Stock Detector Hardware 449 in h (19Circuitron 800 5204 DT 4 Rolling Stock Detector Ideal for spotting a hidden train or piece of rolling stock. Four independent detection units combined onto one circuit board, can be used separately or together to control external devices. Supplied with four Opto Sensors that mount between rails to detect movement. When train covers a sensor, the unit activates any connected DC accessory, such as an indicator light on a control panel. Independent