**US SALES ONLY-Absolutely NO INTERNATIONAL SALES. NO FORWARDING**
The MS-2000 (M) distress marker light has come a long way since you purchased ACR's original Firefly back in the 1960s. Here are a few of the new features found in the new MS-2000(M) models:
Shield extends/retracts for omni- or uni-directional visibility
Waterproof down to 50ft (15.3m);
IR filter blocks all visible light (lets through only IR light)
Raised polarity indicators allow correct battery replacement in low or no visibility conditions
New braided steel retainer keeps battery door from being lost
Operates on 2 standard alkaline AA batteries - disposal causes no environmental impact For extreme cold environments or long term storage, use 2 common lithium batteries
Blue filter distinguishes strobe from ground fire when in place