Motion Detector improves rail yard safety.

Press Release Summary:

Mark II Railcar Motion Detector warns workers if car starts to move. Safety siren attaches magnetically to bearing cap of any freight car wheel. If wheel turns more than 10 deg in either direction, battery-powered sensor emits 90 dB 2-tone warble. Siren includes baffle to moderate sound level, and illuminated on-off switch. NEMA 4X housing is rain and dust-proof, and all hardware is corrosion-resistant. A 9 V battery provides 30 min siren life.

Original Press Release:

Improve Rail Yard Safety

ALDON COMPANY introduces the Mark II Railcar Motion Detector, a new safety siren designed to give rail yard workers a "heads up" if a car starts to move. The Mark II attaches magnetically to the bearing cap of any freight car wheel. Should the car wheel turn more than 10 degrees in either direction, the battery-powered sensor emits a powerful 90 db two-tone warble. The siren has a baffle to moderate the sound level, and an illuminated on-off switch. The NEMA 4X housing is rain and dust-proof and all hardware is corrosion-resistant. A 9-volt replaceable battery provides 30 minutes of siren life. The Mark II weighs 1 pound and fits in the palm of the hand.

For more information on this and other Quality Aldon products, please contact us at:

Aldon Company

3410 Sunset Avenue

Waukegan, IL 60504

Tel: 847-623-8800

Fax: 847-623-6139


All Topics

COVID-19 Response Suppliers COVID-19 Response:
Can Your Company Help Provide Critical Supplies?

We are using the power of our platform to aid in the mass shortage of critical supplies. If your company can help provide supplies, capabilities, or materials for products such as N-95 Masks and Tyvek SuitsPlease let us know.

COVID-19 Response Suppliers