1. Produktüberschreitungview
The MILESEEY D5-APP-US is a high-precision laser distance meter designed for various measurement tasks. It features smart app connectivity, an electronic angle sensor, and multiple measurement modes for efficiency and accuracy.

Figure 1: MILESEEY D5-APP-US Laser Measuring Tool and included accessories. The package contains the laser measure, a portable bag, a portable bracelet, a user manual, and 2 x 1.5V AAA batteries.
2. Einrichtung
2.1 Einlegen der Batterie
The device requires 2 x 1.5V AAA alkaline batteries. Ensure correct polarity when inserting the batteries into the compartment located on the back of the device.
2.2 Ein-/Ausschalten
Um das Gerät einzuschalten, drücken Sie die Taste MESS button. The laser will stand by for measurement. To power off, long-press the AUS/LÖSCHEN button. The device will automatically shut off after 180 seconds of inactivity to conserve power.
2.3 Einheitenumschaltung
To switch measurement units (M/FT/IN), long-press the EINHEIT button. The device supports various units including meters, feet, inches, and fractional inches. For area and volume measurements, only m² / m³ and ft² / ft³ are available.

Figure 2: Instructions for changing measurement units and setting reference points. Long-press the UNIT button to cycle through units (m, ft, in, ft+in). Short-press the UNIT button to change the reference point between front and back.
2.4 Festlegung des Referenzpunkts
The default reference point is the end of the device. To change the reference point (front or back), short-press the EINHEIT button. This is crucial for accurate measurements depending on where the device is placed.
2.5 Buzzer On/Off
To turn the buzzer sound on or off, long-press the sound button. A speaker icon with a cross will appear on the display when the buzzer is off.
2.6 Intelligente App-Konnektivität
The MILESEEY D5-APP-US syncs with the "Smart Life" app for real-time data transfer and storage of up to 1000 sets. The app allows you to create 2D floor plans or annotate images with measurements.

Figure 3: The laser measuring tool connected to the Smart Life app, showing real-time data transfer and storage capabilities.

Figure 4: The Smart Life app allows users to draw on pictures or create hand-drawn floor plans with integrated measurements.
Video 1: This video demonstrates how the Huepar (similar brand) app works with a laser measuring tool, showcasing features like real-time data transfer and floor plan creation. This functionality is comparable to the MILESEEY D5-APP-US with the Smart Life app.
3. Betriebsarten
3.1 Einzelmessung
Drücken Sie die MESS Drücken Sie die Taste einmal, um den Laser zu aktivieren. Durch erneutes Drücken wird eine einzelne Entfernungsmessung durchgeführt. Das Ergebnis wird auf dem Bildschirm angezeigt.
3.2 Kontinuierliche Messung
Drücken Sie lange die MESS button for 2-3 seconds to enter continuous measurement mode. The device will continuously measure and display the maximum, minimum, and current values. Short-press MESS again to stop and display the final data.
3.3 Flächenmessung
Drücken Sie die MODUS button until the area icon appears. Take two consecutive measurements (length and width). The device will automatically calculate and display the area.
3.4 Volumenmessung
Drücken Sie die MODUS Drücken Sie die Taste, bis das Lautstärkesymbol erscheint. Nehmen Sie drei aufeinanderfolgende Messungen (Länge, Breite und Höhe) vor. Das Gerät berechnet und zeigt die Lautstärke automatisch an.
3.5 Pythagorean Measurement (Indirect Length)
The device supports 2-point and 3-point Pythagorean measurements for indirect length calculations. Press the MODUS button until the desired Pythagorean icon appears. Follow the on-screen prompts to take the required measurements. For best accuracy, especially with handheld measurements, using a tripod is recommended.
Video 2: This video provides a detailed guide on various measurement methods for a laser measuring tool, including single, continuous, area, volume, and Pythagorean measurements. This is directly applicable to the MILESEEY D5-APP-US.
3.6 Addition und Subtraktion
To add or subtract measurements, take the first measurement, then press the + or - button. Take the next measurement, and the result of the operation will be displayed. This function can be used for length, area, and volume calculations.
3.7 Elektronischer Winkelsensor
The device features an advanced electronic angle sensor that provides real-time angle display. This allows for faster and more accurate measurements compared to traditional bubble levels, especially for indirect height and distance calculations.

Figure 5: The electronic angle sensor provides real-time angle display, enhancing accuracy for various measurements.
4. Wartung
4.1 Genauigkeitsprüfung
To check the accuracy of the measuring tool, select a permanently unchangeable indoor measuring section (approx. 9.8 to 32 ft or 3 to 10 m long) with weak backlighting and a smooth, reflective target area (e.g., a white-painted wall). Measure the distance 10 times in succession. The deviation of individual measurements from the average value must not exceed ±0.12 in (±2 mm). Record these measurements to compare accuracy at a later date.
4.2 Allgemeine Pflege
Keep the device clean and dry. Avoid exposing it to extreme temperatures or direct sunlight for extended periods. The device has an IP54 rating, indicating protection against dust and splashing water, but it is not fully waterproof.

Figure 6: The device features an IP54 rating for dust and splash resistance.
5. Fehlerbehebung
The device displays error codes for various issues. Refer to the table below for common error codes and their corrective measures.
| Fehlercode | Ursache | Korrekturmaßnahme |
|---|---|---|
| Fehler10 | Batterie zu schwach | Change batteries or charge the device |
| Fehler15 | Außerhalb der Reichweite | Ziel innerhalb der Reichweite messen |
| Fehler16 | Received signal too weak and measuring time too long | Use high reflectivity reflector |
| Fehler18 | Hintergrundhelligkeit zu hoch | Use low reflectivity reflector |
| Fehler26 | Out of the device's digital display range | Switch units or measure within the digital display range |
6. Spezifikationen
| Besonderheit | Spezifikation |
|---|---|
| Messbereich | Bis zu 229 Fuß |
| Genauigkeit | ±2 mm |
| Messgeschwindigkeit | 0.5 Sekunden |
| Winkelsensor | Electronic, real-time display |
| Einheiten | Meters (M), Feet (FT), Inches (IN) |
| Anzeige | 2" Large Easy Read Backlit LCD |
| App-Konnektivität | Smart Life app (data transfer, floor plans, image annotation) |
| Datenspeicherung | Up to 1000 sets (via app), 30 sets (on device) |
| Automatische Abschaltung | 180 Sekunden Inaktivität |
| Akku-Typ | 2 x 1.5V AAA Alkaline batteries |
| Material | Acrylnitril-Butadien-Styrol |
| Maße | 2.49 x 11 x 4.55 cm |
| Gewicht | 200 g |
| Wasserbeständigkeit | Not Water Resistant (IP54 dust and splash resistant) |
7. Garantie und Support
The MILESEEY D5-APP-US Laser Measuring Tool comes with a 2-year warranty. For technical support or warranty claims, please refer to the contact information provided in the product packaging or on the official MILESEEY webWebsite.





