Garmin Edge Cadence Sensor

Advantages: rugged, waterproof, reliable, accurate
Disadvantages: none

...My wife and i have a hobby called Geocaching and our Garmin Geko 201 is invaluable to us. Our hobby involves downloading co-ordinates to the PC, which we can then transfer to the Garmin via a serial cable. You can of course input them manually. My advice is to read the manual carefully as it may not be the most obvious piece of kit to use. (isn't that what manuals are for? ) Once you get used to it it is a very simple unit to use. It is rugged, waterproof and has a good battery life. I believe it is even possible to link to some mobile phones such as Smartphones but i have not tried? It has a breadcrumb feature so that you can retrace your step, current speed, average speed, distance covered and many more useful features that you will find handy, but; The most important thing is that it is accurate. We have to find objects... Read review

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Advantages: Lightweight, robust and easy to use
Disadvantages: No interface to the computer.

...many reviews on Ciao). After advice from assistants and internet research, I decided on the Garmin eTrex Summit. Of course the eTrex Summit can be used for more than just geocaching. It is intended for long distance walkers of hilly or mountainous terrain. It incorporates an electronic compass to aid navigation and an in-built barometric altimeter. It can store up to 20 routes and up to 500 waypoints. The eTrex Summit weighs just 5.3 ounces - definitely light in weight. It is shaped rather like a mobile phone and comes with a wrist strap making it very easy to carry. It is waterproof. Garmin claim that the unit can be safely submersed to 1 meter for 30 minutes. Now, I haven't actually put that to the test but my eTrex Summit has withstood heavy rain and snow and has emerged unscathed (unlike me). The eTrex Summit requires 2 AA... Read review

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Advantages: Small and very strong
Disadvantages: A bit bulky and expensive from UK suppliers

.... Once you have a lock you are confronted with a very clear backlit display, firstly giving accuracy and signal strength and then scrolling through, firstly to a bread crumble trail which in a time honoured tradition (how many fairy tales would have ended to quickly if Hansel and Grettle had a Garmin on then) tells you where you have been and how to get back to were you started, then a configurable screen which can show either 4 measurements or one large measurements, these are: Max Speed: Trip Odom meter Moving average Moving Time Location Elevation (strangely on beaches thus measurement reads minus 2-4 meters, and you don't get much more sea level than a beach} Other screens include waypoints (for those special places], Routes (for getting to those special places] The Memory also seems more than large enough and I have... Read review

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