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Comparison Mastech MS6906 vs Bosch Truvo 0603681221

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Mastech MS6906
Bosch Truvo 0603681221
Mastech MS6906Bosch Truvo 0603681221
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Main
Light and sound indication of metals and electrical wiring. Automatic shutdown.
Detection
wiring
75 mm
ferrous metal (steel)
50 mm
non-ferrous metal (copper)
50 mm
wooden structures
30 mm
wiring
50 mm
ferrous metal (steel)
70 mm
non-ferrous metal (copper)
60 mm
 
 
Features
Light indication
Flashlight
Displaybacklit
General
Measurement accuracy3 mm
Auto power off7 min10 min
Power sourcePP33xAAA
Max. operating time5 h
Battery included
Case (bag)
Dimensions160x74x42 mm
Weight154 g150 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.

Light indication

The presence in the device of a light indicator — a pointer that gives a light signal when an object is detected in the depth of the "viewed" material. In addition, the light indicator can also work “at idle” — notifying that the device is turned on, in good working order and ready for operation. Detection signaling can be carried out by turning the indicator on and off, changing its colour or blinking frequency; such an indication is often more convenient and noticeable than the display readings. In fact, light signs are often combined with displays: the indicator provides the most basic notifications, and the screen displays more detailed information.

Flashlight

The presence of a built-in flashlight in the device. This feature will be useful when working in low light conditions, including hard-to-reach places where outside light does not reach well. Of course, if necessary, a flashlight can also be used during “off-hours”, if there were no other light sources at hand.

Display

Features of the display provided in the device. Not all detectors have such equipment; there are models without a screen.

Without illumination. Displays with no backlight. Such screens are as simple and inexpensive as possible, however, in low light conditions, a flashlight or other external source of illumination is required to read the readings.

With backlight. Screens equipped with their own backlight. Such a backlight can work continuously while the device is turned on, or turn on by pressing a special button. Anyway, it allows you to see the display readings even in low light conditions — up to complete darkness; at the same time, lighting is inexpensive. Therefore, this option is the most popular in modern wiring detectors.

Touch. Displays with a built-in sensor — like those used in modern smartphones. This is the most advanced option: firstly, touch screens are usually made in colour, and secondly, they provide more options than buttons and other traditional controls. On the other hand, such displays are not cheap, and the aforementioned abundance of features in wire detectors is not required so often. Therefore, this option has not received much distribution.

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.

Auto power off

The auto-off time provided in the device.

Many modern wire detectors can automatically turn off after a certain period of inactivity. This saves battery life. The auto-off time is usually a few minutes — most often from 5 to 20.

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.

Case (bag)

The presence of a case or cover in the delivery set of the device.

Soft cases provide mainly protection from dust and dirt, hard cases also protect against shocks and other contacts with foreign objects. What type of case is included in the kit should be specified separately. However, anyway, the "native" case is better suited for the device than impromptu packaging.
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