Present in smartphones and many connected objects, the 3D accelerometer is a component that acts as a sensor to measure acceleration and displacement and then transmits this information to the device, which transforms it into various data. In the case of laser measuring devices, the accelerometer is used, among other things, to obtain the measurement function between two points.


A line laser or rotary laser will automatically level itself. If it is tilted or jostled too much, the beam will flash or stop to warn of the loss of level.


Vs. « Alert H.I. »


Li-Ion is the abbreviation for lithium ion.
Lithium (chemical symbol Li) is a soft, silver-grey metal used to produce rechargeable or high-voltage batteries.
The lithium-ion battery has the advantage of being able to store a lot of energy (3 to 4 times more than other types of batteries) and to be recharged very quickly, while withstanding many cycles.


The Bluetooth standard is a connection that uses ultra high frequency (UHF) radio waves, in the frequency band around 2.4 GHz, and thus allows the exchange of digital data between electronic devices.
The Bluetooth option allows a rangefinder or other laser measuring instrument to communicate with a smartphone, via a compatible downloadable application developed specifically by the manufacturer of the measuring instrument. This option is particularly useful for saving time when taking a lot of measurements, as the measurements taken are saved in the application and can then be compiled in a spreadsheet or sent by email.


A device used to receive the laser signal emitted from the measuring instrument when at a certain distance from it. It facilitates work in bright conditions or outdoors. It can be compatible with either green or red laser or both. It can be used with a tripod or stand.

Green laser

A green beam laser is up to 4 times more visible than a red beam laser and greatly increases visual comfort.
It is generally more visible and is of great interest when used on dark surfaces, at long distances or in very bright ambient light.
The green beams offered in the CONDTROL range of measuring instruments are equipped with high performance diodes which eliminate the risk of beam drift.

Red laser

A red beam laser differs little in its functionality from a green laser. The difference lies in the visibility to the eye of one or the other.


Available on the rotary lasers, this function can be set manually or automatically by the numerical keyboard of the device. This advanced function makes it possible to create a slope on 1 or 2 axis(es) to create very useful inclined planes, for example, for a ramp or a car park.


The 2-point measurement function allows the distance between two arbitrary points in space to be measured. This is achieved by means of a 3D accelerometer integrated in a laser measuring device. With only two measurements, the length of a segment can be determined, even when it passes through buildings or obstacles.


The Pythagoras function makes it possible to determine a height without having to measure it: the device, placed a few centimetres above the ground, is pointed at the top of the object to be measured, then at its base. The laser measuring device then calculates the height of the object.


A sensor that is used to determine the angle of inclination to a horizontal line. It differs from a spirit level, which can only determine where the horizontal line is.


The word LASER stands for Light Amplification by Stimulated Emission of Radiation.
It is a highly concentrated, artificially produced light that can be controlled and monitored and can therefore be used in many areas of application.
This is the case of the laser beams generated by CONDTROL measuring devices, which are useful in many sectors of activity such as construction, public works, landscaping, urban planning, real estate, diagnosis, topography, etc.


Another name given to laser lines.


Line lasers, also called line lasers, generate one or more fixed lines on one or more axes. They are mainly used indoors. Some have a "pulse" mode that allows the beam to be captured outdoors with a receiver cell.


The versatile indoor and outdoor rotary lasers generate a 360° beam to level the entire area. Even more accurate than line lasers, they are also larger, more shockproof, weatherproof and dustproof than line lasers. It is their motorised (not pendulum) self-levelling system that allows them to be more accurate.


In combination with a laser level, the telescopic Staff can be used to measure differences in level.
Very useful in topography, it is also of great interest for earthworks, among others.


Mode that allows, on line lasers, to capture the beam outdoors with a receiver cell.


The odometer is widely used for measuring road sections with uneven surfaces, landscaping areas, forestry and railways.


Function to transfer markings from the floor to the ceiling.


The accuracy of line lasers is generally ± 2-3 mm at 10 m. A range of 20 m without receiver cell and approx. 40 m with receiver cell is sufficient for professional use.
The accuracy of the rotary lasers is ± 2 mm to ± 5 mm at 30 m with an average range of 400 m being more than sufficient.
In the event of a fall, it is advisable to have the accuracy of a device checked, as the laser receiver is the "brain" of the laser measuring device. The accuracy of your CONDTROL laser measuring device depends on the accuracy of this laser receiver. A receiver cell with digital display saves valuable time.


The resistance of a laser to water and dust is given by the IPxx standard.
The first number indicates dust resistance and the second number indicates water resistance. The higher these numbers, the higher the resistance of the device.
An IP54 protection rating is generally sufficient for professional use of a laser measuring instrument, provided of course that it is not placed under water continuously!
It is recommended that the laser measuring device be cleaned routinely with a damp cloth and then left to dry in its open case to avoid condensation.


A technique that allows a screen or keyboard to be illuminated from behind. On a screen, this increases the visibility of images or data displayed.


The theodolite is an instrument frequently used by surveyors for surveying measurements and by building and civil engineering professionals for the installation of formwork, prefabricated parts or supports. It has the ability to calculate angles between precise points on vertical and horizontal planes.


Visibility is not related to the class of the laser but to the power of its diode. The beam of lasers designed for outdoor use is not visible, but is more powerful than that of a visible indoor laser because it has to cover several hundred metres.
Visibility is measured in nanometres (symbol "nm") which expresses wavelengths of the visible spectrum (part of the electromagnetic spectrum perceptible by the human eye).
Since the human eye's peak visibility is at 555 nm, a green beam with a wavelength of 520 nm will be seen 4 times better than a red beam of 650 nm.