Kestrel Trade-In Opportunity, Save $50 I have a DEAD Kestrel 4500 NV Ballistics Weather Tracker™ with AB software and Bluetooth. It has corrosion damage and Kestrel says it cannot be repaired. They did, however, note that it has a trade-in value toward the purchase of any model Kestrel of equal or greater value thru their website. The trade in value is $141. See this page for the procedure used to get the deal – it can even be used for a recent purchase made thru them (the trade-in unit must be received within 30 days of your purchase date) - https://kestrelinstruments.com/kestrel-trade-in-trade-up Assuming you ship to Kestrel by USPS flat rate box, without added insurance, your net savings will be $50, more if you ship standard ground, not Priority Mail. Price: $84 (current and final price), shipped USPS ground, fully insured, lower 48. Payment by check or MO, I ship when payment clears my bank.