I just bought this for my wife. We're having trouble getting an accurate reading. Just sitting still it reads anywhere from 65 to 85 beats. She mowed the lawn and it shot up to 172 and she wasn't even breathing heavy. Is there a trick to getting an accurate reading?
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Perhaps ten times more accurate than you can read. Lots of stopwatches go to one thousandths of a second, while the person pressing the buttons has a reaction time that can vary from one tenth to half a second. And every time the reaction time changes. So if it is not electronically is started and stopped, don't bother the accuracy of the watch.
Very few electronic scales are accurate as they are a function of a resistance measured against a voltage. They may be accurate when you buy them, but over time the electronic components decay and read differently as the components are cheap 10% type resistors and capacitors and cannot hold their specific values over time. If you want accuracy, you will have to get a balance type scale that can be calibrated on site.
All Digital equipments vary in its reading. To get the accurate reading take three readings one after the other and then the average of the reading is the accurate one.
Usually the readings varies plus minus 2 or 3 to the accurate reading.
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I dont think This particular model is a True Rms Type . So you will not get accurate reading as of a True RMS Multimeter in AC . But in DC you Should atlest get an accuracy of 0.015
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I had the same problem. I talked to 3 different technicians on the Humminbird support line about it. All 3 of them confirmed that this is how their technology works. They ping the GPS satellites continuously, and at low speeds the GPS accuracy causes the speed measurement to fluctuate wildly. It smooths right out when you go faster than 3 MPH, since your boat moves far enough at that speed that the GPS accuracy is no longer a problem.
Seems like they could easily overcome this issue by averaging GPS readings over a longer time period at low speed (i.e. give the boat enough time to move far enough to eliminate the accuracy issues), but they don't do that.
It was a big issue for me since I do a lot of trolling at low speed and need an accurate speed indicator, so I returned the product and bought a Lowrance instead. Lowrance doesn't have this issue.
its a piece of ****, that happens when you arder through qvc. When you arder electronic devices for weights or measurements, first you must know exactly what you are looking at, make, model, and series,,, then read all of the reviews you can,, then go to a pro store-- (like our shop we are a pro archery shop) we refuse to work on peoples bows they bring in that they bought online, because half the time they recieved something that they did not order, they dont look like they did in the picture that the seller posted... always read reviews and ask the professionals.... I would return the item even if it was an auction, if you cant return it then ebay it-- but be honest when you post descriptions of the item, and the problems that you may be experiencing, trust me the buyers will appreciate it...
Hi, Your GPS is accurate for that brand. I have a Lowrance I Finder Pro. We could both put in the same coordinates and come up in different locations. It is just the way the different GPS's get their signal from the satellite. I use my GPS most of the time for a sport called Geocaching and so when I am given coordinates and don't find the thing I am looking for I so about a 30ft-60ft search around where my GPS took me. So yours is basically doing the same thing. I wouldn't worry about it......it's just the way the different models receive the signal that thows them off a bit. If you went out and got a set of coordinates and then I put those same coords into my GPS I would arrive at a completely different location as you. All is well....no need to worry.