Hawkeye DT1H Handheld Depth Finder with Temperature, 300 Feet

I don't write reviews often, but I felt compelled to do so after seeing the negative reviews for this depth finder. It's actually a phenomenal product. I received this depth finder as a Christmas gift and immediately put it to use on my swimming pool. To much of my dismay, it didn't read depth, so I reached out to the manufacturer. I received a response within minutes stating that it would not work in a swimming pool along with a link to a knowledge base article explaining why.So, the next day I took it on the ice and was quickly thrilled by its effectiveness if I followed the instructions regarding clearing snow away and using water. I was able to obtain readings directly through the ice so that I could tell the depth before I drilled my hole. I did notice however that it had difficulties reading in white ice (more about that later). I drilled several holes and tried it out again in the holes. I did notice that it works great where the ice was not too thick (1.5ft or so), but had difficulties where the ice was really thick (3 ft or so). When I got home I contacted their support again and once again received a quick response with explanations and links to knowledge base articles. Turns out the "white" ice is air trapped in the ice which they said it would not shoot through. More web research indicated that they were telling the truth and not making excuses. Sonar does not travel through the air. Just water. So if the ice is "black", you are good to go. As far as the unit not working in the holes I drilled where the ice was very thick, it was explained to me that the sonar signal gets blocked from returning to the top of the hole when the ice is thick. Makes sense as I have the same issue with my flasher. That is why I have to adjust my transducers on my flasher (made by another company) so that it sits below the ice.I recently took the product on vacation to the Florida Keys. We rented a boat so I took the depth sounder with me. It worked great everywhere I tried it (you have to hold the unit verticle to the water). I even took it snorkeling and loved being able to see how far the bottom was away or how far the surface was. I even aimed it at a bridge piling and it told me how far away it was.In summary, don't be turned off by the poor reviews. It's a great product, but it has limitations all of which are explained in the manual (which I finally got around to reading during my trip to Florida last month.

Love this. Works great.

Simple and accurateUsing to check anchoring depth and chart accuracy.

When we bought our sailboat, it came with a HawkEye handheld depth finder that the previous owners used for years during their circumnavigation. We used it our first year in the Bahamas and found it extremely useful for scouting out marginal cuts and anchorages for our 6' draft boat - but then we forgot to take the batteries out at the end of the season, they ruptured and ruined it, so we ordered this new one. We should have tested it out before we took off for the Caribbean, because it failed the very time we used it, displaying temperature only and not depth. We tried it numerous times in both salt water and fresh. If you buy this, make sure you complete the warranty registration process within 15 days of purchase - we did not.

I use my tender to set and check my crab pots. It's didn't come with a built in depth sounder. I bought this as a temporary solution. I works so well I haven't replaced it. FYI: I cycles between water/air temp and depth every time you press the button. (This is likely in the instructions but who reads those...) So if you check water depth and then move the boat 50 yds and check again, you'll get water temp. If you're bouncing around looking for a certain depth, just push the but once more between sounding checks. It has a wrist strap, it floats, it's tough (bounces around in an under-seat compartment).

I originally owned the earlier version of this hand held depth finder. It lasted about 6 years and failed due to salt water ingress. This new model has a much improved water seal method and looks like it will last a lot longer. It is easy to use the simple slide switch to get temperature / depth of the water. But it can be confusing as to which reading is going to be shown. If you see temp then immerse and try again or vis versa. Getting an accurate water temperature requires that the unit be immersed for a minute or two otherwise you are reading some version of the air temperature and the water. The temperature sensor will be stable at air temp initially so it will take some time to cool / warm it to water temperature. Otherwise I have found this to be reliable and a great way to be sure that the water depth is less than my crab pot float! Otherwise it is good by trap and create a boating hazard. So this unit gets kept in our dinghy during Dungeness Crab season.

Works awesome. Must have for exploring new waters

This is a simple, easy to use, hand held depth finder.Verified its accuracy using a survey gradeGPS system. It is tough, east to use and very reliable.