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Comparison Treker GC-1065 vs Velleman 65

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Treker GC-1065
Velleman 65
Treker GC-1065Velleman 65
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Main
Pointer indicator
Pointer indicator
Typemetal detectormetal detector
Suitable forgroundground
Principle of operationVLFVLF
Coil/frame
Type
concentric
concentric
Shape
round
round
Waterproof
Dimensions (WxD)19x19 cm19.8x19.8 cm
Number of coils11
Specs
Number of detection frequencies11
Detection frequency6.6 kHz6.5 kHz
Max. detection depth80 cm
Coin detection depth18 cm18 cm
Discriminator
Features
Functions
sensitivity adjustment
volume control
low charge indicator
sensitivity adjustment
volume control
low charge indicator
More features
pointer indicator
armrest
built-in speaker
headphone output
pointer indicator
armrest
built-in speaker
headphone output
General
Power sourcePP3 x1PP3 x1
Shaft length96 – 121 cm87 – 126 cm
Weight0.9 kg1 kg
Added to E-Catalognovember 2016june 2016

Dimensions (WxD)

The size of the standard coil (frame) of the metal detector. Theoretically, the larger it is, the deeper the device is able to “see” and the more space it captures in one pass, but the worse it is suitable for searching for small objects and the lower the accuracy with which it localizes them. At the same time, these characteristics depend on so many other factors that in fact, the size of the coil itself affects them very little.

Note that for coils (frames) of an elliptical shape, only one size can be indicated — along the length.

Detection frequency

The operating frequency (or frequency range) of the metal detector. This is one of the most important parameters when choosing a device, because the optimal frequency for different cases will be different — depending on the size and material of the items being searched, the characteristics of the soil and other factors. Detailed recommendations on the choice of frequency for each specific situation can be found in special sources; And already on the basis of this information, it is worth choosing a specific model.

Note that the actual frequency at which the metal detector will operate also depends on the installed coil — they are usually made for a specific frequency. Therefore, to use the full capabilities of the device with the ability to adjust this parameter, you may need replaceable coils.

Max. detection depth

The greatest depth at which a metal detector is guaranteed to be able to detect a metal object. Note that this parameter is most often quite approximate, moreover, somewhat conditional. This is due to the fact that it is usually indicated for an perfect environment (low-mineralized soil, a fairly large object, the material of which optimally matches the frequency of detection of the coil, etc.), and even for such conditions it is difficult to derive an absolutely accurate value. Therefore, in fact, the detection depth is highly dependent on a number of additional factors (from soil characteristics to user skills) and can be significantly less than indicated in the characteristics. Nevertheless, the claimed depth describes the capabilities of the metal detector quite well, and it is quite possible to compare different models with each other.

Note that a large depth not only increases the cost of the device, but can also adversely affect its ability to detect small objects.

Shaft length

The length of a metal detector rod is usually indicated by the distance from the coil to the upper end of the rod (where the armrest is located, if any). The higher the height of the operator, the longer the boom must be so that he can hold the coil above the ground without bending over (or not bending too much). In most models, the length lies in the range from 120 to 145 cm — for most adults this is quite a suitable value. Note that the rods can be adjustable (telescopic) — to adjust for growth.

Weight

The total weight of the metal detector in the working position is with the installed coil and batteries (if both are removable, see above). This parameter is quite important, taking into account the fact that during operation the device has to be kept on the weight: long-term use can be very tiring even with a relatively small weight and the presence of an armrest (see above). Therefore, light weight is a noticeable advantage for any metal detector. At the same time, other things being equal, lighter models tend to cost more, so you can use another option — a shoulder strap that reduces the load on the hand. And for underwater metal detectors (see "Type"), this parameter is not particularly relevant, because. objects underwater lose a significant amount of weight.
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