Stopwatches

A stopwatch is a type of timer device designed to measure the amount of time elapsed, from a start point when it is activated to the time when it is deactivated. Timers are used in a wide range of applications from sporting events to experiments and provide a precise time measurement from start to finish.


RS Components offer to customers a wide range of stopwatches both hand held and desk versions.


Types of stopwatches


Two main types of stopwatches are available on the market: Digital and Analogue. The most important difference between them is a time resolution. Analogue Devices provide accuracy of 1/5 s but in the digital version in most of the cases deliver 1/100 s resolution of the time. All digital stopwatches are battery operated, normally powered by coin button batteries, but the source of power in analogue stopwatches comes from a mechanical system. Some of the RS PRO stopwatches are equipped with an illuminated screen, useful in low light situations. Many stopwatches also include an audible alarm that starts once the count down has ended or a set time is reached, providing an enhance notification useful for when the timer is not in operation.


What to look for when buying stopwatch?


The time accuracy can make a massive difference. Often, 1/5 s accuracy is good enough but for higher speed tasks 1/100 s accuracy is necessary. The source of power is also important. Mechanical stopwatches need some user attention for correct operation whilst digital devices are always ready to work. They are usually equipped with an illuminated screen that can be helpful in low light conditions.


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Description Price Type Digital/Analogue Maximum Time Resolution Calibrated Power Source Countdown Timer Alarm Function Battery Type Calendar Colour/Finish Water Resistance Case Material Weight
RS Stock No. 134-7545
BrandRS PRO
€84.76
Each
units
Pocket Digital 9 h 59 min 59.99 s 1/100s RSCAL Battery Yes Yes - Yes Black Water Resistant - -
RS Stock No. 134-7546
BrandRS PRO
€120.08
Each
units
Pocket Digital 9 h 59 min 59.99 s 1/100s UKAS Battery Yes Yes - Yes Black Water Resistant - -
RS Stock No. 891-9889
BrandRS PRO
€39.33
Each
units
Pocket Digital 9 h 59 min 59.99 s 1/100s - Battery Yes Yes - Yes Black Water Resistant - -
RS Stock No. 134-7536
BrandRS PRO
€125.59
Each
units
Desk Digital 10 h 1/100s UKAS Battery - - R6 - Black - Plastic -
RS Stock No. 235-5059
BrandRS PRO
€45.18
Each
units
Desk Digital 10 h 1/100s - Battery - - R6 - Black - Plastic -
RS Stock No. 134-7535
BrandRS PRO
€85.60
Each
units
Desk Digital 10 h 1/100s RSCAL Battery - - R6 - Black - Plastic -
RS Stock No. 134-7543
BrandRS PRO
€64.54
Each
units
Pocket Digital 24 h 1/100s RSCAL Battery - Yes - Yes Black Water Resistant Plastic -
RS Stock No. 134-7544
BrandRS PRO
€102.29
Each
units
Pocket Digital 24 h 1/100s UKAS Battery - Yes - Yes Black Water Resistant Plastic -
RS Stock No. 811-1814
BrandRS PRO
€20.06
Each
units
Pocket Digital 24 h 1/100s - Battery - Yes CR2032 Yes Black Water Resistant Plastic -
RS Stock No. 134-7541
BrandRS PRO
€61.87
Each
units
Pocket Digital 24 h 40 min 1 s 1/100s RSCAL Battery - Yes - Yes Black Water Resistant Plastic -
RS Stock No. 134-7542
BrandRS PRO
€99.50
Each
units
Pocket Digital 24 h 40 min 1 s 1/100s UKAS Battery - Yes - Yes Black Water Resistant Plastic -
RS Stock No. 811-1818
BrandRS PRO
€17.16
Each
units
Pocket Digital 24 h 40 min 1 s 1/100s - Battery - Yes - Yes Black Water Resistant Plastic -
RS Stock No. 134-7539
BrandRS PRO
€100.08
Each
units
Pocket Analogue 1 h 60 min 60 s 1/5s RSCAL Mechanical - - - - Stainless Steel - Metal 95g
RS Stock No. 134-7540
BrandRS PRO
€149.99
Each
units
Pocket Analogue 1 h 60 min 60 s 1/5s UKAS Mechanical - - - - Stainless Steel - Metal 95g
RS Stock No. 329-727
BrandRS PRO
€76.13
Each
units
Pocket Analogue 1 h 60 min 60 s 1/5s - Mechanical - - - - Stainless Steel - Metal 95g