Fish Hawk TD anyone here using it?

[BP Swing]

Can anyone recommend this little device? (Fish Hawk TD) I like the idea of it and it seems to have good online reviews but I see the minimum battery life is 5 yrs. and its a sealed battery. Im not crazy about throwing this away in 5 yrs.($149)  It hasnt even been out 5 yrs either to tell. Anyone here using it? Thanks 

Edited March 27, 2015 by BP Swing

[Bada Bing]

Works great.

[camomanbg]

Mine works great, I've only had it for 2yrs but it's been priceless on many occasions.  If it died tomorrow I wouldn't be too mad, as long as I wasn't on the water trying to use it as my only source of down temp!  I really like it because I can tell how far down I'm actually going with blow back and on my divers.  Helps with making the correlation to what I'm seeing on the FF.

[BP Swing]

Even though the battery has a 5 yr min life, the website says it has a 7-10 yr useful life, then I guess you buy another.  

[John Greenlee]

Love it. We walleye fish on Lake Erie and use it a lot to find out how certain combinations of lures, snap weights, lead core etc run. Used it about 3 years with no sign of battery fatigue.