1. Introduction
This manual provides detailed instructions for the safe and effective operation of your Huepar S100G-BT Green Laser Distance Meter. Please read this manual thoroughly before using the device and keep it for future reference.

Image: The Huepar S100G-BT Green Laser Distance Meter, a compact and robust device.
2. What's in the Box
- 1X 330FT Laser Distance Measuring Tool
- 1X Hand Strap
- 1X USB-C Charging Cable
- 2X Rechargeable 1200mAh Capacity NiMh Batteries
- 1X User Manual
3. Product Features
- Smart APP Control: Full APP integration for smarter and easier measuring. Sync data instantly, create groups, add annotated photos, and draw sketches. Effortlessly switch units, modes, and reference points in real time.
- Brighter Green Laser & High Accuracy: Advanced green beam laser technology, 4X brighter than standard red lasers for superior visibility. Delivers up to ±1/16-inch accuracy. Laser class: Class 2, 490–560nm, <1mW.
- Durable & User-Friendly Design: Measure from front/middle/rear reference points; 1/4" threaded mount allows tripod use for stable measurements. IP54 dust- & water-resistant design with TPE rubberized housing provides a secure grip, scratch resistance, and durability.
- 3 Power Options & Smart Energy Saving: Comes with 2 rechargeable 1200mAh NiMH batteries, USB-C direct charging, and also compatible with AA batteries. Auto shut-off after 180s of no operation saves power efficiently.
- Real-Time Angle Sensor & Large Backlit Display: Built-in digital angle sensor with ±1° accuracy ensures improved measurement precision. The 2-inch backlit LCD screen provides clear, easy-to-read data.
- Multiple Measurement Modes & Unit Switch: Supports distance, angle, area, volume, and 4 Pythagorean modes. Features continuous measurement, addition & subtraction, automatic area/volume calculation, and stores up to 30 groups of data. Switchable units (m/ft/in/ft+in) meet diverse measurement needs.
4. Setup
4.1. Battery Installation and Charging
The device comes with two rechargeable 1200mAh NiMH batteries. To install, open the battery compartment cover. Insert the batteries according to the polarity markings. Close the cover securely.
To charge, connect the provided USB-C cable to the device's charging port and to a suitable USB power source. The charging indicator on the display will show charging status. The device can also be powered by AA batteries (not included).

Image: The Huepar S100G-BT showing its three power methods: rechargeable NiMH batteries, USB-C direct charging, and compatibility with AA batteries.
4.2. Connecting to the Huepar APP
- Download the "Huepar" APP from Google Play Store or Apple App Store.
- Ensure Bluetooth is enabled on your smartphone.
- Turn on the Laser Measuring Tool.
- Open the Huepar APP and grant necessary permissions.
- Click "Add Device" within the app.
- Select and connect to your Laser Measuring Tool from the list of available devices.

Image: Screenshots illustrating the smart app integration features, including creating floor plans, taking photos with measurements, and grouping data.
5. Operating Instructions
5.1. Power On/Off
- Power On: Press the MEAS button once to turn on the device.
- Power Off: Press and hold the OFF button for 2 seconds to turn off the device. The device will automatically shut off after 180 seconds of inactivity.
5.2. Unit Switching
In measurement mode, short press the UNIT button to cycle through available units: meters (m), feet (ft), inches (in), and feet+inches (ft+in).
5.3. Reference Point Selection
The device can measure from three reference points: front, middle, or rear. Short press the REFERENCE button to switch between these points. The selected reference point will be indicated on the display.

Image: Diagram showing the three selectable reference points (front, middle, rear) for precise measurements.
5.4. Measurement Modes
Short press the MODE button to cycle through the various measurement functions:
- Single Distance Measurement: Press MEAS to take a single distance reading.
- Continuous Measurement: Press and hold MEAS to activate continuous measurement. The display will update in real-time as you move the device. Press MEAS again to stop.
- Area Measurement: Follow the on-screen prompts to measure two sides (length and width). The device will automatically calculate and display the area.
- Volume Measurement: Follow the on-screen prompts to measure three sides (length, width, and height). The device will automatically calculate and display the volume.
- Pythagorean Modes (4 types): Use these modes for indirect measurements of height or distance when direct measurement is not possible. Follow the on-screen instructions for each specific Pythagorean calculation.
- Addition/Subtraction: After taking a measurement, press the + or - button to add or subtract subsequent measurements.
- Angle Measurement: The built-in digital angle sensor provides real-time angle readings.

Image: Visual representation of various measurement modes including distance, area, volume, and Pythagorean calculations.

Image: The device displaying real-time X and Y axis angle measurements using its electronic angle sensor.
5.5. Data Storage and Recall
The device can store up to 30 groups of data. To recall stored data, press the MEMORY button. Use the arrow keys to navigate through the stored measurements.
5.6. Smart APP Functions
- Data Synchronization: Measurements taken with the device will instantly sync to the Huepar APP on your phone.
- Photo Annotation: Take photos within the app and add measurement data directly onto the images for easy reference.
- Floor Plans & Sketches: Create and draw floor plans or sketches within the app, integrating live measurement data.
- Data Grouping & Custom Naming: Organize your measurements into groups and assign custom names for better project management.

Image: A step-by-step guide on how the Huepar APP links data, allowing users to take photos, tag measurement spots, and automatically save results to their phone.
6. Maintenance
- Cleaning: Use a soft, damp cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a dry, cool place away from direct sunlight and extreme temperatures.
- Battery Care: If the device will not be used for an extended period, remove the batteries to prevent leakage.
- Protection: The IP54 rating provides dust and water resistance. Avoid submerging the device in water.

Image: The Huepar S100G-BT demonstrating its IP54 dustproof and waterproof capabilities, along with its durable TPE rubberized housing and portable bag.
7. Troubleshooting
If you encounter issues with your Huepar S100G-BT, refer to the following common problems and solutions:
| Error Message | Cause | Solution |
|---|---|---|
| Er.BL | Low battery voltage | Charge the power supply. |
| Er.DE | Measuring error | Re-measure by the measurement operation. |
| Er.DH | Out-of-distance measurement range | Use the laser measure within its range. |
| Er.TL | Ambient temperature is below the operating temperature range | Use the device within the specified operating temperature range. |
| Er.TH | Ambient temperature is above the operating temperature range | Use the device within the specified operating temperature range. |
| Er.SH | The signal is too strong | Choose a surface with weaker reflectance. |
| Er.SL | The signal is too weak | Choose a surface with stronger reflectance or use the reflecting plate. |
Video Guide: How to Use
Video: A detailed demonstration by Huepar-CA on how to use the professional laser distance measure, covering various functions and tips for accurate readings.
8. Specifications
- Brand: Huepar
- Model: S100G-BT
- Measuring Range: 100 meters (330 feet)
- Accuracy: ±1/16 inch
- Laser Class: Class 2, 490–560nm, <1mW
- Color: Green
- Material: Acrylonitrile Butadiene Styrene, TPE
- Item Weight: 120 Grams
- Battery Type: Rechargeable NiMH, 1.2V (2x 1200mAh included)
- Charging: USB-C
- IP Rating: IP54 (Dust- & Water-resistant)
- Display: 2-inch Backlit LCD
- Data Storage: Up to 30 groups
- Auto Shut-off: 180 seconds of inactivity
9. Warranty and Support
This Huepar laser measuring tool enjoys a 2-year quality warranty. Free repair or replacement is provided if the product is faulty. Huepar is committed to providing best-in-class service to our customers, including a 24/7 service team (response in 24 hours & solution in 48 hours). Lifetime technical support and worldwide maintenance centers are available for faster product repair or replacement.
For support, please refer to the contact information provided in your product packaging or visit the official Huepar website.