MRB-510 Narco Marine beacon.
Helps in marine emergencies. Still in box, soiled but works. Pick up in Oakland or call to hold and for details, or if shipping is required. Narco Andrews model emergency position indicating beacon 121.5 or 243 mhz frequency. Transmits for 8 days over 200 miles. Self contained, waterproof, sold for $169.00. Now a bargain at 45.00.
Calls 510-430-9840 only, no text or e-mail.