How to Use a Laser Distance Meter: for C6 and R7 Models From Temu

How to Use a Laser Distance Meter (C6 & R7 Models)

The C6 and R7 Laser Distance Meters from Temu are powerful tools for quick and precise measurements. This guide explains how to operate the device, use advanced functions, and troubleshoot issues effectively.

🔌 Getting Started: Powering On and Off

• Turn On: Press the START button to activate the device. The backlight will turn on and enter single measurement mode.
• Turn Off: Hold the power button. If idle, the device will shut down automatically after 3 minutes.

📏 Basic Measurement Functions

1. Single Distance Measurement

• Press START to turn on the laser.
• Aim at the target and press START again to take a reading.
• Measurement displays instantly.

2. Continuous (Max/Min) Measurement

• Long press START to activate continuous mode.
• Display shows:
  – Top: Minimum distance
  – Middle: Maximum distance
  – Bottom: Current reading
• Press the power button to exit or wait 5 minutes for auto-exit.

3. Addition & Subtraction

• Press +/- to toggle between add/subtract modes.
• Addition: Current + next measured value.
• Subtraction: Current – next measured value.
• Use CLEAR to remove last entry or reset line-by-line.

🔁 Advanced Features

4. Function Modes

Press the FUNC key to switch between these measurement types:

• Area Measurement: S = Length × Width
• Volume Measurement: V = L × W × H
• Pythagorean Measurement: Calculate height using indirect distances
• Double Pythagorean: Multi-step measurements for complex geometry

5. Data Storage & Recall

• Stores up to 30 sets of measurements automatically.
• Press FUNC to access memory mode.
• Use +/- to browse saved values.

⚙️ Settings & Customization

6. Reference Point Setting

• Default reference is rear edge.
• Press the ↔ key to toggle to front reference and back again.

7. Change Units

Hold the unit key to switch between:

• m (meters)
• ft (feet)
• in (inches)
• ft+in (feet-inch-1/16)

8. Clearing Entries

• Short press CLEAR to delete last action or line-by-line data.

🧪 Technical Specifications

Feature	C6 Series	R7 Series
Range	50m – 120m	50m – 120m
Accuracy	±2mm	±2mm
Laser	Red Beam, Class 2, <1mW	Same
Functions	Area, Volume, Pythagorean	Same
Memory	30 sets	30 sets
Display Accuracy	1mm	1mm
Operation Temp	0°C to 40°C	0°C to 40°C
Storage Temp	-10°C to 50°C	-10°C to 50°C
Auto Laser Off	30 seconds	30 seconds
Auto Shutdown	3 minutes	3 minutes

❗ Troubleshooting: Error Codes

Error Code	Cause	Solution
Er104	Calculation error	Re-measure
Er155	Out of range	Move within range
Er157	Weak signal or too slow	Use reflective targets
Er159	Too much ambient light	Try low-reflectivity surfaces
Er194	Numerical value too large	Stay within display limits

🧠 Pro Tips

• Use a tripod for better long-distance accuracy.
• Clean the lens regularly.
• Avoid direct sunlight or overly reflective surfaces during measurements.