Golf Laser Rangefinder
User Manual

Specification

Manufacturer	RNDUS CO., LTD/Designed & Patented by Korea/Made in China
Model Name	Caddy Talk Windy
Product Type	Golf Laser Rangefinder
Material / Color	ABS+TPU/ White
Item Weight	119 Grams (Without magnet)
Product Dimensions	96mm(Width)*59mm(Height)*26mnn(ThicKness)
Measuring Range	Distance : 0.1 -1,093 yd Wind Speed : 1.1 – 15.6 mph
Measurement Speed	Distance :≤ 0.3 sec (≤400m), ≤0.5 sec (>400m) Wind : 2 sec
Tolerance range	±1 yd (0.91 m) Based on straight-line distance Wind : +35%
Unit (selectable)	M (Meter) Yd (Ya rds) M+m/s,Yd+m/s, M+mph,Yd+mph
Rated Input	DC 5.0V 1A
Battery Description	Lithium-Ion / 3.7V 800mAh Built-in Rechargeable Battery/ Up to 5,000 actuations on a full Charge
Water Resistant Level	I P54 (Water-resistant)
Laser Classify	CLASS 1
Magnification	7X
Display(viewfinder)	2 color OLED (red/green)
Product Features	Recommends distance based on wind, Slope(Magic2/Environment/non) , Caddy Mode, Pin Finder, JOLT, Detachable Magnet, Distance Profile Selection by Player Type(MAN /WOMAN / MAN PRO/WOMAN PRO)

PACKAGE INCLUDES

Parts and Descriptions

Objective Side

1. Objective lens & Laser transmitter
2. Laser receiver
3.  Illuminance sensor
   Viewfinder Side
4. Power (Measurement) Button
5. Magnet (detachable)
6. Eyepiece Lens
7. Wind Sensor
8. Focus Dial
   Product bottom
9. Charging port
10. Mode Button

Display (Viewfinder)
*Each item appears only when necessary. (Not all items will be displayed at the same time.)

1. Wind Direction Indicator: Only one of the eight directions will be displayed after measuring wind.
2. Caddy Mode Mark: This appears when you press the mode button once.
3. Reticle: The large dot in the center appears only when you press the measurement button.
4. Distance Profile: This is displayed for one second when the power is turned on and then disappears.
5. Setup Mode Mark: This is visible only when you enter setup mode.
6. Battery Level: This indicator appears when the battery level is 70% or below.
7. Slope Mark : This does not appear in Non-Slope Mode.
8. Adjusted Distance Value: In Non-Slope Mode, only the straight-line distance is displayed.
9. Distance Unit: This can be changed in setup mode between M (meters) and Yd (yards).
10. Wind Icon: This appears when displaying the measured wind value or the recommended distance accounting for wind.
11. When Measuring General Distance: In E or M-Slope Mode, only the straight-line distance is shown. If there is a wind value, it will show the wind speed or the recommended distance considering the wind.
12.  Wind Speed Unit: This can be changed in setup mode between m/s and mph.
13. Club UP/DOWN: Displayed when strong wind conditions suggest using one club higher or lower than usual.

POWER ON/OFF
Pressthe power button once to turn it on, and the viewfinder screen will appear.

1. As soon as the power is turned on, the designated distance profile (MAN/WOMAN/MAN PRO/WOMAN PRO) will be displayed for less than 1 second before automatically switching to the second screen.
2. Distance measurement standby screen : This is the screen that appears before distance measurement, indicating that the device is ready for distance measurement.
   • There is no need for any additional operation to turn off the power. If no operation is performed, the power will automatically turn off after 10 seconds.

DISTANCE MEASUREMENT

When you press the power button on either screen 1 (distance measurement waiting screen) or screen 2 (screen showing distance measurement results), the results will be displayed with a vibration.

1. Upon measurement, the circle in the middle appears and then disappears.
2. The current applied slope marks are as follows: (e: E-Slope, M: M-Slope, and Non-Slope: no icon.)
3. Measured distance (Slope condition = corrected distance /non-slope condition = straight distance)
4. Distance unit (can be changed to meters, yards)
5. During slope mode, a straight distance will not show any corrections.
   • The measurement distance is provided in decimal form if it is less than 32.8 yards.

Pin Finder Measurement Method
If your hands are shaking and it’s difficult to aim accurately at the target, press and hold the Measurement (Power) button while scanning left and right around the target. Once you release the button, it will vibrate and display the distance to the closest target, excluding any surrounding obstacles.
Measuring Distance with Wind
To measure wind, release the wind sensor button and aim at the target. Then, press and release the power button to measure the distance. (For detailed instructions on measuring wind, refer to the “How to Measure Wind” page.)

1. Wind direction (the direction is from inside the viewfinder to the outside)
2. An icon will appear recommending a different club (up or down) based on wind speed and direction.
3. Slope-adjusted distance (excluding wind)
4. Recommended Distance (with Wind):
   EX: When a strong tailwind is detected, the system recommends hitting slightly shorter than the slope-adjusted distance.
   • The recommended distances and club adjustments based on wind are for reference only. Keep in mind that Windy is a tool to help you make decisions considering wind conditions.

How to Measure Wind

1. Press the wind sensor down button once to release it.
   The sensor will pop up.
   
2. Hold the device vertically with the wind sensor facing upward. Then, press and release the Mode button. After 2 seconds, the device will vibrate to indicate that wind measurement is complete.

During measurement, the LED around the wind sensor will blink red.
※ Caution: Make sure the wind sensor is upwards and the device is held in the target direction.

Do not tilt or lay down the device while measuring the wind. Hold Windy up above your head or shoulders to avoid blocking the wind. (Obstructions may cause inaccurate readings.)

Wind Measurement Precautions

1. After measuring the wind, be sure to press the wind sensor back into the device before measuring distance.
   
2. Light wind below 1.1 mph does not affect distance or trajectory and may not be detected. The maximum measurable wind speed is 15.6 mph.
   When the wind speed exceeds 15.6 mph, the display will show “15.6” with a blinking indicator (indicating strong wind).
3.  Thewind sensoris highly sensitive to extemal noise. Loud mechanical noises (e.g, airplane engines or fans) may cause inaccurate readings. (Note: Human voices are filtered out and do not affect measurement)
4.  The wind sensor measures the wind at the user’s curent location. Note that wind conditions may vary in different areas of the golf course.
5. Do not use it in rainy or humid conditions. The wind sensor is a highly sensitive component and can bedamaged by moisture. Using the device in rain or high humidity may cause malfunction.
6. Avoid physical impact. Strong shocks may damage the accuracy of the sensor. Tugging or extending the wind sensor button may also cause it to bend or break.
7.  Prevent dust, sand, or foreign particles from entering the wind sensor. Such substances may reduce measurement accuracy. Handle and store the device carefully to avoid contamination.

When Wind Cannot Be Measured
If the wind sensor button is out and the device continues to vibrate with the red LED on, and not functioning correctly, verify whether the device is in Non-Slope Mode.
To receive wind-based distance recommendations, the device must be set to either M-Slope (Magic Slope 2) or E-Slope (Environmental Slope) Mode.
If the wind sensor is extended while in Non-Slope Mode (Slope OFF), the device will emit strong vibrations and a red warning light.
In this case, when looking through the viewfinder, you will see EEEE, indicating an error.

Caddy Mode and Wind Sensor
Cannot Be Used Simultaneously If the wind sensor is extended while in Caddy Mode, the device will
automatically switch to Wind Measurement Mode.
If you do not measure the wind and simply press the wind sensor back in, the screen will return to the original Caddy Mode display. However, if you measure the wind and then press the power button to measure distance, the device will switch to standard distance measurement mode (with either E-Slope or M-Slope applied).
Wind-based recommended distances are calculated based on the wind conditions at your current location-such as headwind, tailwind, and wind strength.
Because of this, they cannot be applied in Caddy Mode, where you are measuring the distance between the ball and the pin, which may be far from your current location.

CaddyTalk’s Slope Systems

1. Magic Slope 2 (M-Slope)
   CaddyTalk’s “Magic Slope” technology has become even more advanced.
   While the original Magic Slope provided corrected distances by factoring in elevation changes (uphill/downhill) and ball trajectory, Magic Slope 2 now also considers run distance based on backspin and landing angle variations caused by slope gradients, delivering even more precise corrections.
2.  Environmental Slope (E-Slope)
   This system provides corrected distances by factoring in environmental elements that directly affect ball distance-temperature, humidity, and altitude. (Higher temperatures and altitudes, and lower humidity levels, can increase your shot distance even when using the same club.)
   
3. Wind Slope (U.S. Patent No. 12,220,624)
   When wind-based recommended distances are provided, no separate icon is displayed in the slope indicator area. Instead, a wind icon appears showing the recommended distance with wind effects.
   Once wind is measured, the recommended distance reflects not only the E-or M-Slope corrected distance, but also the actual wind data (speed and direction), along with air time and landing angle adjustments based on wind influence.
   If a unit (m/s or mph) is displayed, the number indicates wind speed.
   If no unit is shown, the number represents the recommended distance with wind factored in

Caddy Mode
Caddy Mode is a patented triangular measurement method that allows you to obtain the distance between the ball and pin without walking to the ball.

1. When the device is on, press and release the Mode button once.
   The Caddy Mode icon will appear in the viewfinder. (The left side of the icon will start blinking.)
   
2. Aim at the ball (first target) and press the Power (Measurement) button. (Once the left side is fixed and stops blinking, the right side will begin blinking.)
   
3. Aim at the second target such as the flagstick or a bunker, then press the Power (Measurement) button again. The device will immediately display the distance between the first and second targets. (All icons and borders will stop blinking, and the entire Caddy Mode icon will remain fixed.)
   • Wind data cannot be applied in Caddy Mode.

Distance Profile

The Distance Profile is a feature that allows you to set your average shot distance, so the device can provide recommended distances tailored to your personal performance.
For example: “I usually hit my 7-iron farther than most people.” /”I don’t hit as far as the average golfer.”
This feature takes such differences into account when calculating recommended distances.
You can choose from 4 presets, based on the average
7-iron distance:
① MAN: Average male amateur golfer (7-iron average: 145 yards)
② WOMAN: Average female amateur golfer (7-iron average: 110 yards)
③ MAN PRO: Average male tour professional (7-iron average: 175 yards)
④ WOMAN PRO: Average female tour professional (7-iron average: 155 yards)
The selected Distance Profile setting is briefly displayed (for 1 second) when the device powers on, so you can instantly check which profile is currently active.
You can change your Distance Profile at any time in the Setup Mode.

Setup Mode (Unit/Distance Profile / Slope Setting)

1. Turn on the device. Press and hold the Mode button for about 2 seconds to enter Setup Mode.
   In Setup Mode:
   Use the Power button to switch values within the current setting.
   Use the Mode button to change the next setting screen.
2.  The first screen in Setup Mode is the unit selection screen. Use the Power button to cycle through the following units:
   M (meters) + m/s ➡ Yd (yards) + m/s ➡ M+mph ➡ Yd+mph ➡ M+ m/s
   Press the Mode button to proceed to the Distance Profile setting screen.
3.  The second screen in Setup Mode is the Distance Profile selection screen. Use the Power button to cycle through the following Distance Profiles:
   MAN ➡WOMAN ➡MAN ➡PRO ➡WOMAN ➡PRO ➡ MAN
   Press the Mode button to proceed to the Slope setting screen.
4.  The third screen in Setup Mode is the Slope setting screen.
   Use the Power button to cycle through the following slope modes:
   E-Slope ➡M-Slope ➡ Non-Slope (Slope OFF) ➡ E-Slope
   Press the Mode button to proceed to the unit selection screen.

Magnet
The included magnet can be attached and detached by sliding the changeable piece..

Be careful not to insert the magnet upside down.
The steep angle of the magnet (see reference image) should face towards the eyepiece.
Caution When Removing the Flat Cover:
To remove the cover, simultaneously press down and push away from the device to slide the piece out. It is designed with a latch to prevent it from coming off easily, so simply pushing it will not detach it.

Charging/Checking Charging Status

① Open the charging port cover located on the bottom of the device to reveal the USB-C port.
② It is recommended to use the included charging cable for charging.
(Caution: Using a fast charger over 5V/2A may cause damage.)
③ Battery Level Indicator:
When the remaining battery level falls below 70%, a battery icon will appear in the viewfinder.
④ Charging Status:
When the device is charging, check the charging status by looking through the viewfinder.
Also, the wind sensor lights up red during charging and changes to green when fully charged.

Precautions

Please read the user manual carefully before use to ensure safe and proper operation of the product.

1. When measuring wind, hold the device upright in a vertical position and raise it above your head to avoid blocking the wind sensor.
2. Using fast charging (over 5V/2A) may cause malfunction. Use the included charging cable and a 5V/1A adapter. (Adapter not included.)
3. Use the included cleaning cloth to remove any foreign substances on the lens.
4. Do not touch the lens area with your fingers.
5.  Do not target the device at strong light sources (e.g., sunlight) or look into the laser.
6.  Do not attempt to disassemble, repair, or modify the product on your own. (Unauthorized tampering will void warranty and service eligibility.)
7. Due to the nature of laser technology, weather conditions (such as rain, snow, fog, or clouds) may affect performance. Obstacles like glass or a mesh screen in front of the laser emitter may hinder measurement.
8. This product is water-resistant, not waterproof. Submersion in water may cause malfunction. Avoid exposing the device to water or immersing it completely.
9. Battery life may vary depending on usage environment, method of use, and battery condition.
10. Avoid leaving the battery dead for extended periods, as this may shorten battery lifespan.
11.  Leaving the device connected to a power source (cable plugged into an adapter) for long periods may cause fire or malfunction.
12.  Exposure to high temperatures or pressure may also cause fire or malfunction.
13.  Due to the integrated design of optical components, disassembly or partial part replacement is not supported for after-sales service.
14. When using the pouch, be aware that color transfer or scratches may occur on clothing or belts.
15.  Strong impacts (including dropping the device), may cause malfunction. Use the product only for its intended purpose.

Documents / Resources

CaddyTalk Windy Laser Rangefinder [pdf] User Manual Windy Laser Rangefinder, Windy, Laser Rangefinder, Rangefinder

References

• User Manual