1. Introducció
Thank you for choosing the POPOMAN MTM120B Laser Distance Meter. This device is designed for precise and efficient distance measurements, offering various functions including area, volume, and Pythagorean calculations. It features a USB rechargeable battery, a clear LCD with backlight, and data storage capabilities. Please read this manual thoroughly before using the device to ensure safe and optimal performance.
2. Instruccions de seguretat
To prevent injury and damage to the device, observe the following safety precautions:
- Seguretat làser: This product emits a Class 2 laser. Do not stare directly into the laser beam or point it at other people. Avoid direct eye exposure.
- No desmunteu ni modifiqueu el dispositiu. Les reparacions només les ha de realitzar personal de servei autoritzat.
- Mantingueu el dispositiu fora de l'abast dels nens.
- Do not use the device in explosive environments or near flammable materials.
- Protegiu el dispositiu de temperatures extremes, humitat i vibracions fortes.
- Ensure the measurement surface is suitable for laser reflection; highly reflective or transparent surfaces may affect accuracy.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al paquet:
- 1 x POPOMAN MTM120B Laser Distance Meter
- 1 x cable de càrrega USB
- 1 x Manual d'usuari
- 1 x Reflective Plate (Laser Target)
- 1 x bossa portàtil
- 1 x corretja de mà

Figura 3.1: Contents of the POPOMAN MTM120B package, including the laser distance meter, USB cable, user manual, laser target, portable pouch, and hand strap.
4. Producte acabatview
Familiarize yourself with the components and controls of your POPOMAN MTM120B Laser Distance Meter.

Figura 4.1: Davant view of the POPOMAN MTM120B Laser Distance Meter with key components labeled.
4.1. Components del dispositiu
- Laser On: Indica quan el làser està actiu.
- Font d'alimentació: Indicador de nivell de bateria.
- Angle: Displays the current tilt angle (Electronic Angle Sensor).
- Visualització: LCD screen showing measurements, modes, and settings.
- Turn on / Measuring (READ button): Powers on the device, activates the laser, and initiates measurements.
- Subtraction / Sound button: Used for subtraction calculations and toggling sound on/off.
- Addition button: S'utilitza per a càlculs de suma.
- Area / Volume / Pythagorean Measuring (FUNC button): Canvia ciclísticament entre els diferents modes de mesura.
- Reference Point / Unit Switch button: Changes the measurement reference point (front/rear) and switches measurement units (m/in/ft/ft+in).
- Botó Desa: Stores current measurement data.
- Turn off / Remove (OFF CLEAR button): Apaga el dispositiu o esborra la mesura actual.
5. Configuració
5.1. Carregant la bateria
The POPOMAN MTM120B features a built-in rechargeable lithium battery. Before first use, fully charge the device.
- Locate the USB charging port on the side of the device.
- Connect the provided USB charging cable to the device and to a standard USB power source (e.g., laptop, power bank, AC adapter, car charger).
- The battery indicator on the display will show charging status. A full charge typically takes approximately 30 minutes and provides power for up to 8,000 measurements.

Figura 5.1: Various methods for charging the POPOMAN MTM120B, including laptop, power bank, AC adapter, and car charger.
5.2. Encès / apagat
- Per encendre: Premeu el botó LLEGIR botó. La pantalla s'il·luminarà.
- Per apagar: Manteniu premut el botó DESACTIVAT CLEAR durant uns segons. El dispositiu també s'apagarà automàticament després d'un període d'inactivitat per estalviar bateria.
6. Instruccions de funcionament
6.1. Mesura bàsica
- Premeu el botó LLEGIR button once to activate the laser. A red laser dot will appear.
- Apunteu el punt làser al punt objectiu.
- Premeu el botó LLEGIR button again to take a single measurement. The measured distance will be displayed on the screen.
6.2. Canvi d'unitats de mesura
Premeu el botó Punt de referència / Interruptor d'unitat button repeatedly to cycle through available units: meters (m), inches (in), feet (ft), and feet + inches (ft+in).
6.3. Changing Reference Point
The device can measure from its front edge or its rear edge. Press and hold the Punt de referència / Interruptor d'unitat button to toggle between front and rear reference points. An icon on the display will indicate the active reference point.
6.4. Mesura contínua (seguiment)
In continuous measurement mode, the device constantly updates the distance as you move it.
- From standby, press and hold the LLEGIR button until "MIN/MAX" appears on the display.
- Move the device slowly. The display will show the current distance, as well as the minimum and maximum distances recorded during the session.
- Premeu LLEGIR de nou per aturar la mesura contínua.
6.5. Mesura de l'àrea
- Premeu el botó EMPLEAT button once until the area icon (a square) appears on the display.
- Measure the first side (e.g., length) by pressing LLEGIR.
- Measure the second side (e.g., width) by pressing LLEGIR.
- Es mostrarà l'àrea calculada.
6.6. Mesura de volum
- Premeu el botó EMPLEAT button twice until the volume icon (a cube) appears on the display.
- Mesura la longitud prement LLEGIR.
- Mesura l'amplada prement LLEGIR.
- Mesura l'alçada prement LLEGIR.
- Es mostrarà el volum calculat.
6.7. Mesura pitagòrica (mesura indirecta)
Aquest mode permet la mesura indirecta d'altures o distàncies utilitzant el teorema de Pitàgores.
- Premeu el botó EMPLEAT button three or four times until a Pythagorean icon appears (e.g., a triangle with one side flashing).
- Follow the on-screen prompts to measure the required sides of the triangle (e.g., hypotenuse, base).
- El dispositiu calcularà i mostrarà el costat desconegut.
6.8. Addition and Subtraction
After taking a measurement, you can add or subtract subsequent measurements.
- Take a first measurement.
- Premeu el botó + button for addition or the - botó per a la resta.
- Take the next measurement. The result will be added to or subtracted from the previous total.
- Repeat as needed. Press LLEGIR to finalize the calculation.
6.9. Electronic Angle Sensor
The device features an electronic angle sensor that displays the tilt angle in real-time on the screen, useful for leveling or specific indirect measurements.

Figura 6.1: The device display indicating the real-time electronic angle measurement.
6.10. Data Storage (Memory)
The POPOMAN MTM120B can store up to 99 sets of measurement data.
- After a measurement is displayed, press the Desa button to store it.
- To recall stored data, press and hold the Desa botó. Utilitza el + i - botons per navegar pels registres emmagatzemats.
- To exit memory view, premeu DESACTIVAT CLEAR botó.

Figura 6.2: The device display showing multiple stored measurement data sets, indicating the 99-set memory feature.
6.11. Mode de silenci
To operate the device silently, press the Subtraction / Sound button to toggle the sound on or off. This is useful in quiet environments.
7. Manteniment
- Neteja: Utilitzeu un suau, damp drap per netejar el dispositiu. No utilitzeu productes de neteja abrasius ni dissolvents. Presteu especial atenció a mantenir neta la lent del làser.
- Emmagatzematge: Store the device in its portable pouch in a cool, dry place when not in use. Avoid direct sunlight and extreme temperatures.
- Cura de la bateria: Although the device has a built-in lithium battery, it is recommended to charge it periodically if not used for extended periods to maintain battery health.
- The device has an IP54 rating, meaning it is protected against dust ingress and splashing water from any direction. However, it is not waterproof and should not be submerged.
8. Solució De Problemes
If you encounter issues with your POPOMAN MTM120B, refer to the table below for common problems and solutions.
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s'encén. | Bateria baixa. | Carregueu el dispositiu amb el cable USB proporcionat. |
| Mesures inexactes. |
|
|
| La pantalla és tènue o il·legible. | Low battery or strong ambient light. | Charge the device. Move to an area with less direct sunlight. |
| No sound feedback. | Mute mode is active. | Premeu el botó Subtraction / Sound botó per activar el so. |
9. Especificacions
| Model | POPOMAN MTM120B |
| Interval de mesura | 0.05 m a 50 m |
| Precisió | ± 2.0 mm |
| Unitats de mesura | m / polzada / peus / peus + polzada |
| Classe làser | Classe 2 |
| Classificació de protecció internacional (IP) | IP54 (protegit contra la pols i les esquitxades d'aigua) |
| Mostra | 2.25-inch LCD with backlight |
| Memòria de dades | 99 conjunts |
| Tipus de bateria | Bateria de liti recarregable |
| Temps de càrrega | Aprox. 30 minuts (per a una càrrega completa) |
| Durada de la bateria | Aproximadament 8,000 mesures per càrrega |
| Apagada automàtica del làser | 30 segons (aprox.) |
| Apagada automàtica del dispositiu | 180 segons (aprox.) |
| Dimensions del producte | 11.7 x 5.2 x 2.6 cm |
| Pes del producte | 260 g |
| Fil del trípode | 1/4 polzada |
10. Garantia i Suport
10.1. Informació de la garantia
The POPOMAN MTM120B Laser Distance Meter comes with a 24-month quality commitment des de la data de compra. Aquesta garantia cobreix els defectes de fabricació i garanteix que el producte compleix els estàndards de rendiment especificats en condicions d'ús normal.
The warranty does not cover damage caused by misuse, unauthorized modification, accidents, or normal wear and tear.
10.2. Atenció al client
If you have any questions, require technical assistance, or need to claim warranty service, please contact POPOMAN customer support. Refer to the contact information provided on the product packaging or the official POPOMAN weblloc web per obtenir els canals de suport més actualitzats.