Stopwatches
Stopwatches
Handheld or tabletop timepieces to measure elapsed time between activation and deactivation points; analog or digital; may be shockproof, waterproof, and/or traceable; may have multiple functions; may include a neck cord or other attachment device.
A laboratory stopwatch measures time intervals using specific activation and deactivation points.
Analog or mechanical stopwatches are typically controlled by two buttons. The first button starts the timer and the second stops the measurement, and the elapsed time is displayed. The time can be re-started by pressing the first button again, and the time is reset to zero by pressing the second button again. The second button may also allow for lap times or split times.
Mechanical stopwatches are spring-powered and have to be wound periodically. Digital stopwatches and timers are usually powered by a silver cell or lithium battery.
Digital electronic stopwatches or timers have crystal oscillator timing elements that make them much more accurate than mechanical versions. They may also display the date and time. Some stopwatches count by centiseconds (1/100 of a second), which is not to be confused with milliseconds.
Digital timers are now available with a number of useful features. Some have more than one timing channel and can be used to simultaneously measure the time for more than a single activity.
All stopwatches and timers can be calibrated and certified based on standards traceable to the National Institute of Standards and Testing (NIST). Certified timepieces can then be used to calibrate other devices for everyday use.
Large digital stopwatches found in sports stadiums and that can be seen from a distance are called stopclocks. Stopwatch functions may also be available on wristwatches, cell phones, computers, and other electronic devices.
Fisherbrand™ Traceable™ 300-Memory Stopwatch
Unit recalls 300 memories and displays sample numbers 1 through 300. Fisherbrand Traceable 300-Memory Stopwatch provides repeat functions of countdown alarm timing and can recall memories both during and after event timing.
Fisherbrand™ Traceable™ 60-Memory Stopwatch
Provides repeat functions of countdown alarm timing. Fisherbrand Traceable 60-Memory Stopwatch has three-line display which simultaneously shows running time, cumulative split, and interval split.
Fisherbrand™ Traceable™ Jumbo-Digit Stopwatch
Largest digits (1/2 in. high) provide ease in reading.
Fisherbrand™ Traceable™ Four-Channel Countdown Alarm Digital Timer/Stopwatch with Memory Recall
Four countdown channels plus stopwatch channel and time-of-day clock
Fisherbrand™ Traceable™ Decimal Stopwatch
Precise, Traceable timing for enzyme tests, viscosity measurements, animal studies, and all timed lab tests. Fisherbrand Traceable Decimal Stopwatch is tough with water-resistant ABS plastic case which seals out moisture, dust, and fumes encountered in harsh lab, plant, or field environments.
Fisherbrand™ Traceable™ Waterproof/Shockproof Stopwatches
Digital Stopwatch. Choose from a waterproof/shockproof model or a water-/shock-resistant model.
Fisherbrand™ Traceable™ One-Hour Digital Stopwatch
Times to 59 minutes, 59 seconds, 99 hundredths. Fisherbrand Traceable One-Hour Digital Stopwatch acts like a chronograph and displays time of day to the second, AM/PM, and the date. With single-action, time in/time out, cumulative split and continuous timing.
H-B Instrument™ DURAC™ Digital Stopwatches
Supplied with multi-language (English, French, German, Italian, Portuguese and Spanish) instructions, these electronic stopwatches include a calendar and a clock.
Fisherbrand™ Hanhart 112.0101-00 Crown Stopper Mechanical Stopwatch
Crown Stopper Mechanical Stopwatch
Fisherbrand™ 100-min. Count Down/Up Timer
Single-channel timer with a timing capacity of 99 minutes and 59 seconds
Fisherbrand™ 300 Memory Water-Resistant Stopwatch
Memory storage for 300 lap times. Fisherbrand 300 Memory Water-Resistant Stopwatch has an O-ring-sealed and shock-resistant ABS plastic case with nonslip rubber sides.
Fisherbrand™ Water-Resistant, Shock-Resistant Stopwatch
NIST traceability assures quality and accuracy. Fisherbrand Water-Resistant, Shock-Resistant Stopwatch is a general-purpose, quartz LCD digital stopwatch with O-ring-sealed ABS plastic case and is ideal for rough use.
Fisherbrand™ Jumbo-Digit Water-Resistant Stopwatch
Jumbo 0.5 in. (1.3cm) digits are easy to read.
United Scientific Supplies Digital Timer with Photogates
Microprocessor-controlled four-digit timer.
United Scientific™ Digital Stopwatch
This digital stopwatch features a lanyard and exceptional value.
GENIE GROUP STOP WATCH WITH HEAT INDEX
This item has a minimum qty of 4 per supplier requirements.
STOP WATCH WITH HEAT INDEX
Andwin Scientific JUMBO DISPLAY ALARM TIMER/STOP
Jumbo Display Alarm Timer/Stopwatch, Four independently programmable channels count up or down for any interval up to 100 hr., Each channel has a distinct 60-second audible alarm, Package: EA
Eric Armin Incorporated Hanhart Spectron Digital Stopwatch - Calibrated
CTRS (Certified Traceable Registration Sticker) - traceable to NIST (National Institute of Standards and Technology). Switchable between 1/100 min and 1/100 sec. 65 memories with fast run memory. Countdown function. Time and date. Split time can be programmed with real time. Water resistant ABS case. Protective pouch with lanyard. 1.5V AAA battery. Battery life: 5-6 years
FLIR Systems Extech Humidity/Temperature HeatWatch™
Multi-functional timing device features user selectable heat index alarm and measures temperature and humidity. Stopwatch has 6 modes: Time/Date, Heat Index, Chrono Lap, Alarm, Timer, and Chrono Split Mode.
Fisherbrand™ Traceable™ Stopwatch/Repeat Timer
Ideal for an analysis that must be noted at routine intervals
Fisherbrand™ Traceable™ Dual-Display Digital Stopwatch
Engineered for ease of operation, accuracy, and reliability. Fisherbrand Traceable Dual-Display Digital Stopwatches provide precise, Traceable timing for enzyme tests, viscosity measurements, animal studies, and all timed lab tests. They are made for scientists in industrial, educational, hospital, and governmental labs.
Fisherbrand™ Water-Resistant Stopwatches
General-purpose stopwatch. Fisherbrand Water-Resistant Stopwatch/Chronograph displays time of day and has a time-of-day alarm.
Fisherbrand™ Stopwatch/Chronograph
Reads times up to 24 hours and displays time-of-day.
Fisherbrand™ Single-Action Stopwatch™
Simple and intuitive to use.
