1. Introducció
The Mileseey DT20 is an innovative 3-in-1 measuring tool that integrates a laser distance meter, a digital tape measure, and smart Bluetooth connectivity for seamless integration with a mobile application. Designed for accuracy and convenience, it is an ideal tool for interior design, construction, carpentry, and industrial surveys, especially for measuring large areas like rooms, apartments, buildings, factories, and warehouses.
The DT20 offers fast, accurate, and reliable measurements with its patented PowerBrust Digital Display technology, providing real-time figures on its LCD screen. It also features advanced optical decoding and tape error correction technology for stable performance.

2. Informació de seguretat
ADVERTÈNCIA: RADIACIÓ LÀSER. NO MIRAR FINS AL FEIX.
- This device emits Class II laser radiation (<1mW). Avoid direct eye exposure to the laser beam.
- Do not attempt to disassemble or modify the device. Unauthorized modifications can result in hazardous radiation exposure and void the warranty.
- Mantingueu el dispositiu fora de l'abast dels nens.
- Use only the specified charging method and cable to prevent battery damage or fire hazards.
- No exposeu el dispositiu a temperatures extremes, humitat ni llum solar directa durant períodes prolongats.
3. Producte acabatview
The Mileseey DT20 is designed for ease of use and durability. Familiarize yourself with its components:

Components:
- Pantalla LCD retroil·luminada: Displays measurements and device status.
- Port de càrrega USB: Per recarregar la bateria interna.
- Port d'emissió làser: Emet el raig làser per mesurar la distància.
- Port de recepció de làser: Detects the reflected laser beam.
- Porta principal: Controls the tape measure.
- Cinta: 5-meter physical tape measure.
- Ruler Hook: End of the tape for hooking onto surfaces.
- Tecles de funció: For various measurement modes and settings.
- Back/Off Button (C/OFF): Clears current measurement or turns off the device.
- Measurement Key (ON): Initiates laser measurement or turns on the device.
- History/Bluetooth Button: Accesses measurement history or activates Bluetooth pairing.
- Base/Unit Switch (UNIT): Changes measurement units and reference point.
- Metal Buckle: For attaching to a belt or pocket.
- Forat del cordó: Per enganxar una corretja de canell o un cordó.
4. Configuració i càrrega
4.1 Càrrega inicial
The DT20 comes with a built-in rechargeable lithium polymer battery. Before first use, or if the battery is low, charge the device using the provided Micro-USB cable.
- Connect the Micro-USB cable to the USB charging port on the device.
- Connecteu l'altre extrem del cable a un adaptador de corrent USB estàndard (no inclòs) o a un port USB de l'ordinador.
- L'indicador de bateria a la pantalla LCD mostrarà l'estat de càrrega.
- Un cop estigui completament carregat, desconnecteu el cable.

4.2 Encès/Apagat
- Encès: Premeu el botó ON botó breument.
- Apagar: Manteniu premut el botó C/OFF button for a few seconds. The device will also automatically power off after a period of inactivity to save battery.
5. Modes de funcionament
The Mileseey DT20 offers three primary measurement modes:
5.1 Laser Measurement Mode
This mode uses a laser beam for precise distance measurements up to 40 meters (130 feet).
- Enable Laser: Premeu llargament el botó ON botó per activar el làser.
- Mesura: Apunta el làser a l'objectiu i prem el botó ON button again to take a measurement. The result will be displayed on the LCD screen.
- Change Reference Point: Utilitza el UNITAT button to switch between measuring from the front or rear of the device.

5.2 Tape Measurement Mode
This mode utilizes the physical 5-meter (16-foot) tape measure with a digital display for enhanced readability.
- Pull out Tape: Extend the tape measure to the desired length.
- Lectura digital: The measurement will be displayed in real-time on the LCD screen.
- Tape Lock: Press the main gate switch to lock the tape in place, preventing rebound and ensuring stable readings.

5.3 Digital Display Measurement Mode
This mode specifically highlights the digital readout of the tape measure, providing clear and accurate data even in low-light conditions thanks to the backlit screen.

6. Advanced Measurements and Calculations
The DT20 can perform more than just simple distance measurements:
- Mesura de l'àrea: Take two measurements (length and width) and the device will calculate the area.
- Mesura de volum: Take three measurements (length, width, and height) and the device will calculate the volume.
- Indirect Pythagorean Theorem: For inaccessible distances, the device can calculate the length using the Pythagorean theorem.

Emmagatzematge de dades
The device can store up to 50 sets of measurement data for later review o transferència.
7. Bluetooth Connectivity and Mobile App
The DT20 Bluetooth version includes a built-in Bluetooth module, allowing it to connect to a mobile application (e.g., JoyPlan) to transmit measurement data, making your work more efficient.
- Maridatge: Activate Bluetooth on your smartphone and on the DT20 (refer to device instructions for specific pairing steps, usually by pressing the History/Bluetooth button).
- Transferència de dades: Once connected, measurement data can be sent directly to the app.
- Floor Plan & 3D Design: Use the app to draw out floor plans and create 3D design sketches based on the transferred measurements. You can also add details like doors, windows, and furniture within the app.
- Compartint: The app allows you to take pictures, share photos, or export files (e.g., CAD templates) with others.


8. Consells d'usuari
- The DT20 provides accurate measurements within ±3mm for laser ranging and ±1/16 inch for tape measurement.
- Utilize the indirect Pythagorean theorem function for measuring heights or distances that are difficult to access directly.
- The device is rechargeable, ensuring long-term usability.
- The DT20 is CE and FCC certified, meeting international safety and performance standards.
- For the DT10 DTAPE model, note that it does not include Bluetooth functionality.
9. Manteniment
- Neteja: Netegeu el dispositiu amb un suau, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
- Emmagatzematge: Guardeu el dispositiu en un lloc sec i fresc, allunyat de la llum solar directa i de temperatures extremes.
- Protecció: The device features impact-absorbing geometries and soft materials for protection against drops and shocks. However, avoid unnecessary impacts to prolong its lifespan.
- Cura de la bateria: For long-term storage, ensure the battery is partially charged (around 50%) and recharge it every few months to prevent deep discharge.
10. Solució De Problemes
- El dispositiu no s'encén:
- Assegureu-vos que la bateria estigui carregada. Connecteu-la a una font d'alimentació i torneu-ho a provar.
- Inaccurate laser measurements:
- Ensure there is a clear line of sight to the target and the laser emission/receiving ports are clean. Check the reference point setting (front or rear of device).
- Tape measure does not extend/retract smoothly:
- Check for any obstructions or debris in the tape mechanism. Ensure the tape lock is disengaged.
- Problemes de connexió Bluetooth:
- Ensure Bluetooth is enabled on both the DT20 and your smartphone. Make sure the device is within range of your phone. Restart both devices and try pairing again. Confirm you have the correct mobile app installed.
- La pantalla digital no funciona:
- Check battery level. If the issue persists, contact customer support.
11. Especificacions
| Característica | Especificació |
|---|---|
| Nom de marca | MiLESEEY |
| Número de model | DT20 (DT10 DTAPE variant available without Bluetooth) |
| Tipus de potència | Rechargeable (Built-in Lithium Polymer battery) |
| Bateria inclosa | Sí |
| Rang de mesura làser | 40 m (130 peus) |
| Tape Measurement Range | 5 m (16 peus) |
| Precisió de la mesura làser | ±3 mm (±1/8 polzada) |
| Tape Measurement Accuracy | ± 1/16 de polzada |
| Nivell làser | Classe II, <1 mW |
| Mesura de l'àrea | Sí |
| Mesura de volum | Sí |
| Indirect Pythagorean Theorem | Sí |
| Emmagatzematge de dades | Fins a 50 valors |
| Connectivitat | Bluetooth (for DT20 model) |
| Mostra | Pantalla LCD retroil·luminada |
| Origen | Xina continental |
| Certificació | CE, FCC |
| Pes del producte | 0.4 kg |
| Dimensions del paquet (L x W x H) | 16 cm x 8 cm x 6 cm |
12. Garantia i Suport
For warranty information, technical support, or any questions regarding your Mileseey DT20 Laser Distance Meter, please refer to the official product documentation included in your package or contact the seller directly. Keep your purchase receipt as proof of purchase.





