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Caution: 
•  To avoid damaging the components, do not attempt to open or repair the PCB 

without professional guidance. 

•  The operating range may be affected by environmental factors and nearby 

sources of interference. 

•  Proper use helps to prolong the lifespan of the product.

b) 

Batteries

•  Correct polarity must be observed while inserting the battery. 
•  The battery should be removed from the device if it is not used for a long period of 

time to avoid damage through leaking. Leaking or damaged batteries may cause 

acid burns when in contact with skin, therefore use suitable protective gloves to 

handle damaged batteries. 

•  Batteries must be kept out of reach of children. Do not leave batteries lying 

around, as there is a risk that children or pets may swallow them. 

• 

Batteries  must  not  be  dismantled,  short-circuited  or  thrown  into  fire.  Never 

recharge non-rechargeable batteries. This may cause an explosion! 

Features

•  The range of stopwatch time measurements is 0.01 (1/100) seconds to 9 hours, 59 minutes 

and 59.99 seconds. 

•  The display can show the time segment and total time.
•  The clock displays hours, minutes, seconds, months, days, weeks, and supports 12- and 

24-hour time formats. 

Operation

When turning on the stopwatch, the time is initially displayed. Press the MODE key to toggle 

between the following modes:
1.  Stopwatch 
•  Press the START/STOP key to start the stopwatch timer. Press the START/STOP key to 

stop the timer and then press the START/STOP key again to continue the timer. While 

timing is stop, press the SET LAP/RESET key to return the time to zero. 

• 

While timing, press SET LAP/ RESET key to display the first recorded time. Then press 

the SET LAP/RESET key to continue displaying the continuing timer. This process can be 

repeated for each recorded time for up to the maximum time range (9 hours, 59 minutes 

and 59.99 seconds).

2.  Alarm clock 
•  When time displayed on screen, press and hold SET LAP/RESET key, at the same time 

press START/STOP key to switch the alarm clock ON/OFF.  Press the START/STOP key to 

set the hour and minute value of the alarm time, and then press the SET LAP/RESET key to 

confirm the alarm. When any alarms are set, the clock icon is displayed.

3.  Clock 
•  To adjust the month, day, week, 12/24-hour time format or time, press the SET LAP/RESET 

key to toggle to the desired item. Then press the START/STOP key to adjust the value and 

press the MODE key to confirm the change.

 Operating Instructions

Stopwatch

Item No. 2306491 

Intended use

This product is a highly precise and full-featured electronic stopwatch with a clear display. Its 

intended use is for sports training, competition activities, scientific research, education, and 

industrial applications.
The unit cannot be used or stored in extreme heat or freezing conditions and rough use may 

result in damage to the stopwatch. The unit should be stored in a dry environment when not 

in use. 
For safety and approval purposes, you must not rebuild and/or modify this product. If you use 

the product for purposes other than those described, the product may be damaged. In addition, 

improper use can result in hazards. Read the instructions carefully and store them in a safe 

place. Make this product available to third parties only together with its operating instructions. 
This product complies with the statutory national and European requirements. All company 

names and product names are trademarks of their respective owners. All rights reserved. 

Delivery content

•  Stopwatch (LR44 battery included and installed) 
•  Neck strap 
•  Operating instructions 

Up-to-date operating instructions    

       

Download the latest operating instructions at www.conrad.com/downloads or 

scan the QR code shown. Follow the instructions on the website.

Explanation of symbols

  The symbol with the lightning in the triangle is used if there is a risk to your health, 

e.g. due to an electric shock.

  The symbol with the exclamation mark in the triangle is used to indicate important 

information in these operating instructions. Always read this information carefully.

  The arrow symbol indicates special information and advice on operation.

Safety instructions

Read the operating instructions carefully and especially observe the safety 

information. If you do not follow the safety instructions and information on 

proper handling in this manual, we assume no liability for any resulting per-

sonal injury or damage to property. Such cases will invalidate the warranty/

guarantee. 

a) 

General information

•  The device is not a toy. Keep it out of the reach of children and pets. 
•  Do not leave the packaging material lying around carelessly. This may be 

dangerous for children to play with. 

•  Protect the appliance from extreme temperatures, direct sunlight, strong jolts, 

high humidity, moisture, flammable gases, steam, and solvents. 

•  Do not place the product under any mechanical stress. 
•  If it is no longer possible to operate the product safely, take it out of operation and 

protect it from any accidental use. Safe operation can no longer be guaranteed 

if the product: 

 - Is visibly damaged, 
 - Is no longer working properly, 
 - Has been stored for extended periods in poor ambient conditions, or 
 - Has been subjected to any serious transport-related stresses. 

•  Please handle the product carefully. Jolts, impacts, or a fall, even from a low 

height, can cause damage to the product. 

•  Consult an expert when in doubt about the operation, safety, or connection of 

the appliance. 

• 

Maintenance, modifications, and repairs must only be completed by a technician 

or an authorised repair centre.

•  If you have questions that remain unanswered by these operating instructions, 

contact our technical support service or other technical personnel. 

Summary of Contents for RF-SW-110

Page 1: ...wenden Sie keine aggressiven Reinigungsmittel Alkohol oder anderen chemischen Lösungsmittel da diese zu Schäden am Gehäuse und zu Fehlfunktionen des Produkts führen können Verwenden Sie zum Reinigen des Produkts ein trockenes faserfreies Tuch Bedienungsanleitung Stoppuhr Best Nr 2306491 Bestimmungsgemäße Verwendung Dieses Produkt ist eine hochpräzise und voll ausgestattete elektronische Stoppuhr m...

Page 2: ...nde unseren Filialen oder überall dort abgeben wo Batterien verkauft werden Sie erfüllen damit die gesetzlichen Verpflichtungen und leisten Ihren Beitrag zum Umweltschutz Technische Daten Funktionen Stoppuhr Uhr Wecker Batterietyp LR44 im Lieferumfang enthalten und eingesetzt Timer Genauigkeit 0 01 Sekunden 1 100 Sekunden Layout der Anzeige 1 Zeile Zeitformat 12 24 Std Betriebs Lagerbedingungen 5 ...

Page 3: ...eme heat or freezing conditions and rough use may result in damage to the stopwatch The unit should be stored in a dry environment when not in use For safety and approval purposes you must not rebuild and or modify this product If you use the product for purposes other than those described the product may be damaged In addition improper use can result in hazards Read the instructions carefully and...

Page 4: ...mium Hg Mercury Pb Lead name on batteries e g below the waste bin icon on the left Used batteries can be returned to collection points in your municipality our stores or wherever batteries are sold You thus fulfill your statutory obligations and contribute to the protection of the environment Technical data Functions Stopwatch clock alarm Battery type LR44 included installed Timer accuracy 0 01 se...

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