1. Introdución
Thank you for choosing the Huepar S120G-BT 395FT Bluetoothed Green Laser Distance Measure. This device is designed for precise and efficient distance measurement, featuring advanced green beam laser technology, an angle sensor, and smart app control. It is suitable for a wide range of applications from home renovation to professional construction projects. Please read this manual carefully before use to ensure safe and optimal operation.

Image 1: Huepar S120G-BT Laser Distance Measure. This image shows the device from the front, highlighting its display and control buttons.
2. Información de seguridade
This device utilizes a Class 2 laser product. Adhere to all safety instructions to prevent injury or damage.
- Seguridade con láser: Do not stare directly into the laser beam. Avoid directing the laser beam at people or animals.
- Seguridade da batería: Use only specified rechargeable NiMH batteries or compatible AA batteries. Do not mix old and new batteries. Do not dispose of batteries in fire.
- Entorno operativo: Non opere o dispositivo en atmosferas explosivas, como en presenza de líquidos, gases ou po inflamables.
- Mantemento: Non intente desmontar nin modificar o dispositivo. As reparacións só deben ser realizadas por persoal de servizo autorizado.
3. Contido do paquete
Verifica que todos os elementos estean presentes no paquete:
- 1X Huepar S120G-BT Laser Distance Measuring Tool
- 1X Hand Strap
- 1 cable de carga USB-C
- 2X Rechargeable 1200mAh Capacity NiMH Batteries
- 1X Manual de usuario
Video 1: How to use this professional laser distance measure. This video provides a comprehensive guide on the usage of the Huepar laser distance measure, including unboxing and basic functions.
4. Configuración
4.1 Instalación e carga da batería
The device comes with 2 rechargeable 1200mAh NiMH batteries. It can also be powered by AA batteries (not included) or charged directly via USB-C without batteries.
- Slide back the battery cover located at the rear of the device.
- Insert the 2 rechargeable NiMH batteries, ensuring correct polarity.
- Pecha a tapa da batería de forma segura.
- To charge, connect the USB-C charging cable to the device's port and a power source. The charging indicator will show the status.

Image 2: 3 Power Methods. This image illustrates the different power options: rechargeable Ni-Mh batteries, Type-C port for direct charging, and compatibility with AA batteries.
4.2 Smart APP Control & Connection
Enhance your measuring experience with the Huepar APP. Sync data, create floor plans, add annotated photos, and draw sketches directly from your phone.
- Download the Huepar APP from Google Play Store or Apple App Store.
- Activa o Bluetooth no teu smartphone.
- Turn on the Huepar S120G-BT Laser Distance Measure.
- Open the Huepar APP and grant all necessary permissions (location, local network, Bluetooth, home data).
- In the APP, tap 'Add Device' and select the S120G-BT from the list of detected devices.
- Once successfully paired, measurement results will sync automatically to your phone.

Image 3: Steps to Connect to Your Phone. This image provides a visual guide for connecting the device to the Huepar mobile application via Bluetooth.
5. Instrucións de funcionamento
5.1 Encendido/apagado
- Encendido: Long press the 'MEAS' button to turn on the device.
- Apagado: Long press the 'CLEAR/OFF' button to turn off the device. The device also features auto shut-off after 180s of no operation to save power.
5.2 Configuración da unidade
The device supports multiple units of measurement (m/ft/in/ft+in).
- Unidades de conmutación: Long press the 'U' button to cycle through the available measurement units.
5.3 Puntos de referencia
Measurements can be taken from the front, middle, or rear of the device.
- Change Reference Point: Long press the 'Benchmark' button to switch between front, middle (tripod), and rear reference points.

Image 4: Accuracy and 3 Reference Points. This image demonstrates the device's accuracy and the ability to measure from different reference points (front, middle, rear).
5.4 Modos de medición
The S120G-BT supports various measurement modes including distance, angle, area, volume, and 4 Pythagorean modes. It also features continuous measurement, addition & subtraction, and automatic area/volume calculation.
- Seleccionar modo: Short press the 'Function' button to cycle through the different measurement modes.
- Realizar medición: Once a mode is selected, press the 'MEAS' button to initiate the measurement. Follow on-screen prompts for multi-step measurements (e.g., for area or volume).

Image 5: Multiple Measuring Modes. This image displays various measurement modes available, including distance, area, volume, and Pythagorean calculations.
5.5 Angle Sensor
The integrated angle sensor provides real-time angle display for precise leveling and alignment tasks.
- Digital Angle Display: The device automatically displays X and Y axis angles on the screen.
5.6 Data History
The device stores up to 30 groups of measurement data.
- View Historia: Short press the 'History' button to access stored measurements.
6. Mantemento
6.1 Coidados e limpeza
- Limpar o dispositivo cun suave, damp pano. Non use produtos químicos agresivos ou produtos de limpeza abrasivos.
- Keep the laser lenses clean and free from dust or debris to ensure accurate measurements.
- Garda o dispositivo nun lugar seco e fresco cando non estea en uso.
6.2 Durabilidade
The Huepar S120G-BT features an IP54 dust- and water-resistant design with a TPE rubberized housing for secure grip, scratch resistance, and durability.

Image 6: IP54 Waterproof and Dustproof. This image highlights the device's resistance to dust and water, ensuring durability in various working conditions.
7 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| O dispositivo non se acende | Low battery or no battery | Charge batteries or replace with fresh AA batteries. |
| Medidas inexactas | Dirty laser lens, incorrect reference point, or unstable surface | Clean the lens, verify the reference point, ensure a stable measuring surface. |
| Fallo de conexión Bluetooth | Bluetooth off, app permissions denied, or device out of range | Ensure Bluetooth is on, grant app permissions, move closer to the device. |
| O raio láser non é visible | Bright ambient light or long distance | Use in lower light conditions or use a laser target plate for better visibility. |
8. Especificacións
| Característica | Detalle |
|---|---|
| Precisión | ±1/16-inch |
| Clase láser | Class 2, 490–560nm, <1mW |
| Rango de medición | Up to 395FT/120M |
| Opcións de enerxía | 2x 1200mAh NiMH rechargeable batteries (included), USB-C direct charging, compatible with AA batteries |
| Apagado automático | 180s of no operation |
| Clasificación IP | IP54 (dust- & water-resistant) |
| Almacenamento de datos | Ata 30 grupos |
| Material | Acrylonitrile Butadiene Styrene, TPE |
| Peso do elemento | 109 g |
9. Garantía e soporte
This Huepar laser measuring tool comes with a 2-year quality assurance. Free repair or replacement is provided if the product is faulty.
- Atención ao cliente: Huepar is committed to providing best-in-class service to our customers. Our 24/7 Service Team aims for a response within 24 hours and a solution within 48 hours.
- Soporte técnico: Hai dispoñible soporte técnico de por vida.
- Mantemento: Worldwide Maintenance Centers ensure your product can be repaired or replaced faster.





