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Comparison Bosch D-tect 150 SV Professional 0601010008 vs Bosch GMS 120 Professional 0601081000

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Bosch D-tect 150 SV Professional 0601010008
Bosch GMS 120 Professional 0601081000
Bosch D-tect 150 SV Professional 0601010008Bosch GMS 120 Professional 0601081000
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Main
Signal View (SV) — the mode of displaying objects located close to each other on the display
Detection
wiring
60 mm
ferrous metal (steel)
150 mm
non-ferrous metal (copper)
150 mm
wooden structures
40 mm
plastic pipes
wiring
50 mm
ferrous metal (steel)
120 mm
non-ferrous metal (copper)
80 mm
wooden structures
38 mm
 
Features
Light indication
Location depth measurements
Displaybacklitbacklit
General
Measurement accuracy5 mm
Auto power off5 min5 min
Power source4xAAPP3
Max. operating time5 h5 h
Battery included
Case (bag)
Dimensions220x120x97 mm200x86x32 mm
Weight650 g270 g
Added to E-Catalogapril 2018april 2018

Detection

The types of hidden objects and materials that the detector responds to and the maximum depth at which it is able to detect these objects and materials.

The detection depth is a rather conditional parameter, and in fact there are often deviations from the claimed values both in one direction and in the other (depending on the material inside which hidden objects are searched for). As for the detection itself, modern detectors, usually, are able to find not only electrical wiring, but also other metal objects of various compositions ( ferrous metal and non-ferrous metal), as well as wooden structures and plastic pipes. However, the specific capabilities of the device in each case still do not hurt to clarify separately.

Location depth measurements

The ability to determine the depth of the object detected by the detector.

Devices with this function allow you to localize the position of the “find” as accurately as possible: not only to find out under what part of the surface the object is located, but also to determine how deep it is located. However the accuracy of determining the depth is usually far from one hundred percent; however, an error of a couple of centimeters in most cases is not critical.

Measurement accuracy

Measurement accuracy provided by the detector. It is indicated by the error that the device gives; accordingly, the lower the number in this paragraph, the more accurate this model, the smaller the error it gives during measurements. For models that have different accuracy with different materials, the smallest error value is indicated.

In the most advanced instruments, the measurement deviation is only 3 – 4 mm; in the least accurate — up to 13 – 14 mm. Note that high accuracy accordingly affects the price; so when choosing according to this indicator, you should not pursue maximum accuracy, but soberly assess what error will be permissible during the planned work. Detailed recommendations on the required accuracy for various specific tasks can be found in special sources.

Power source

The power source used by the detector.

Wire detectors are cordless devices and use the appropriate power source — from batteries ( AA, AAA, etc.) or rechargeable batteries. In this case, the number of batteries may be different. Specific options might be:

PP3. Batteries with a nominal voltage of 9 V, that have a specific rectangular shape, with two contacts on one of the ends. For a number of reasons — in particular, due to the combination of compact size with fairly high voltage — they are very popular in modern wire detectors. They are available as rechargeable batteries.

AA. Replaceable cells, known as "finger-type batteries" (however, they are available not only in the form of batteries, but also in the form of rechargeable batteries). In general, they are widespread, but in wire detectors they are used extremely rarely.

AAA. Batteries, known as "mini finger" or "little finger" batteries. Similar to the AA described above and differ from them only in smaller sizes.

LR44 / SR44. Batteries — "tablets" with a diameter of 11.6 mm and a thickness of 5.4 mm. They are extremely rare, mainly used in the smallest detectors.

Branded battery. Powered by a branded battery of the original size, in some cases — non-removable. The adv...antage of this option over other options is that the battery is initially supplied in the kit, and when the charge is exhausted, it is enough to put it on charge. Thus, the user does not need to spend money on buying batteries. On the other hand, it takes time to charge the battery, while discharged batteries can be quickly replaced with fresh ones. Because of this, this option has not received much distribution.

AA / branded battery. Models that can operate on both standard AA batteries and a branded battery. To do this, the battery is made removable and has such a shape that a set of batteries can be installed in the same compartment instead. This allows the user to choose which power source to use. Note that some models with this feature are designed for universal batteries used in other equipment of the same manufacturer (screwdrivers, distance meter, etc.); such devices may not be equipped with a branded battery at all — in is assumed that the user, if necessary, can purchase it separately.
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