Professional 3D laser level Dovoh H3-360G with powerful 110 mW emitters and high accuracy. The manufacturer gives a 5-year warranty on accuracy and 2-year warranty on the device itself, agree quite good.
The device projects three planes of 360 ° one horizontal and two vertical. Also at the intersection of the verticals are formed plumb points zenith and nadir.
Dovoh H3-360G has passed a large number of certifications: RoHS, FC, CE, UKCA. You can purchase this model from an authorized retailer.
Technical specifications
- Projection accuracy: ± 2mm/10m (±1/13″ at 33ft)
- Working distance at 300LUX: 20m/66ft
- Compensator operating range: ± 4°
- Setting speed: approx. 2-3 sec.
- Dust and moisture protection: IP54
- Receiver mode: Yes
- TILT mode: Yes
- Remote control: Yes
- Tripod threads: 1/4″ and 5/8″
- Laser class and wavelength: II, 520 nm, ˂1mv
- Optical sweep pattern: 1H 360°/2V 360°
- Operating time: 1 plane-18h, 2-11h, 3-8h
- Power supply: Li-ion 7.4V 2600mAh
- Operating temperature: -10 °C to +40 °C
- Storage temperature: -20 °C to +70 °C
- Device dimensions: 150 x 80 x 125 mm
- Device weight: 825 grams
Minimum distance from the horizon: - to the floor – 11.7 cm
- to ceiling – 1 cm
- From the vertical plane to the wall – 1 cm
Housing Dovoh H3-360G
The housing of the laser level is made of high-quality industrial plastic, which is covered with black rubber in some places.
The build quality is not bad, but I would like to have almost invisible gaps in places where the main parts meet, for example, as in the laser level Firecore F94T-XG, or many others.
Nowadays it is not a problem to achieve the highest fit of parts.
On the side under the rubber overlay is a USB Type-C socket for battery charging, mains operation or powerbank.
It should be noted that there is also a separate charger in the kit, so the two batteries that also come in the kit can always be kept charged and ready to work.
The base of the unit has two 1/4 and 5/8 inch threads. There is also a battery compartment, which, by the way, has a rubber gasket around the contour, which, when closed, provides increased tightness.
Instead of small rubber heels, there are large rubber slides, so the level stands perfectly on slippery surfaces like glossy ceramic tiles.
The protective turrets of the Dovoh H3-360G laser level are made of metal, mounted on 4 screws through two powerful rubber gaskets both below and above the glass, which provides good protection against dust and moisture getting inside the case.
At a certain tilt to the light, you can see a lilac tint on the glass, which indicates that the glass has a special coating.
With such glasses there are much less (up to complete absence) of small stray lines. This is definitely a plus for this model.
There are no extraneous glares!
The defense towers have very thin supports, hence an interesting positive effect: the plane discontinuity here is minimal, less than 10 centimeters.
Compensator
The Dovoh H3-360G laser level is equipped with a fast-acting mechanical pendulum-type compensator on magnetic dampers.
The speed of setting it to the working position is only 2 seconds, although in the manual this figure is written as ˂ 4 seconds.
The range of operation of the compensator is ± 4°, so that if the instrument is tilted in any direction up to four degrees with is compensated by the automatic leveling system.
But if the tilt is exceeded, a visual (the lines will start flashing) and audible warning will be immediately activated, indicating that the level cannot be leveled and should be placed on a more level surface.
The entire compensator system is mounted on plastic supports with additional stiffening ribs, which can be considered a rather reliable design.
Device control
The Dovoh H3-360G has a standard and clear set of controls.
There is a two-position toggle switch on the side.
In the “closed lock” position – the level is switched off and the pendulum is locked for further transportation. The pendulum locks very well without any audible play.
When the toggle switch is moved to the “open lock” position, the horizontal plane lights up and the pendulum is released for automatic setting.
On top is a membrane keypad with three buttons and three auxiliary indicators for the various modes.
Use buttons “H” and “V” to switch all planes individually. You can select any combination of enabled planes from one to three.
The third button is responsible for activating the TILT function and for activating the receiver mode.
To activate the TILT function (working with a locked compensator for slope marking), hold the trigger in for 3 seconds, after which the horizontal plane and the red lock indicator will light up.
To activate the receiver mode, briefly press the trigger once. The blue indicator for this mode will light up.
A third indicator shows the battery charge.
A remote control with two buttons “H” and “V” is included, which can also be used to switch all planes individually.
Laser line thickness at different distances
In this test, the Dovoh H3-360G laser level performed well, the lines are thin and sharp.
- At 1 meter from the wall, the thickness was 2 mm.
- A distance of 5 meters showed 1 mm.
- And at 10 meters only 2 mm.
Measuring laser line brightness
This laser level has higher power laser modules, however, as with all cone prisms, there are brighter and dimmer areas of the plane. Therefore, I will measure both areas with a luxmeter.
So, the indicators are as follows:
- At 5m bright side – 54.6 LUX
- 5m dim side – 9.1 LUX
- 10m bright side – 24.9 LUX
- And 10m dim side – 4.1 LUX
Measurements of other laser levels see in the special table.
Declared accuracy (compliance)
Generally, such laser levels have a claimed accuracy of ± 3mm/10m. Here is a higher accuracy of ± 2mm/10m.
Thus, at 5 meters the difference between the points should not exceed these very 2 millimeters. To find out how to calculate the accuracy correctly, see here.
The accuracy test showed that the Dovoh H3-360G laser level fully complies with the stated accuracy.
Adjustment
Let me start with the fact that I was not able to disassemble the body of the device, because apparently it is necessary to peel off a part of the rear rubber jacket, which of course I did not want.
But there is access to the alignment bolts, it is enough to remove the protective turrets.
The side module has an unusual mounting, and apparently during adjustment it is calibrated first by adjusting the position of the pendulum, using the longitudinal and transverse alignment bolt (see photo)
And the position of the other two laser tubes is adjusted separately by three bolts in the base of the module.
Supply package
The Dovoh H3-360G laser level comes in a colorful branded box and plastic case.
The case is padded with neat cells for each accessory:
- device itself
- laser glasses
- magnetic target
- charger with wire and plug
- two batteries
- remote control
- heavy duty mount with microlift and magnets
Pros and cons
Three 360° planes, high accuracy, thin and bright lines, high-power laser modules, Type-C charging socket, good assembly and materials, TILT function, receiver mode, remote control, metal protective towers with rubber gaskets, very small gap at the planes, IP54 protection, there is mains operation, excellent delivery set, separate switching of planes, 5-year accuracy guarantee.
Difficult to disassemble the enclosure
