


Observational Research Stopwatch
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Observational Research StopwatchA unique stopwatch which allows the timing of a subject without disturbing it. For captive and field research, or in classrooms. Hands free operation allows for freedom of movement. The alarm is audible only through a headphone. The alarm can be set for repetitive intervals of every 0. 25 second to every hour. Two 1 100th second displays. Counts up or down to 10 hours. Ideal for multiple and simultaneous processes. In stopwatch mode, current lap time
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4.0 ★★★★★
Based on 1676 reviews
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Product Reviews
★★★★★ 5
Love it
Size: 7, Color: Light Pink
Great fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Beautiful!
Size: 8, Color: Haze Blue, Size: 8, Color: Haze Blue
My daughter got engaged in these shoes and walked all around Paris in them the day of. In all of her engagement photos the first thing everyone notices is her shoes! They are a beautiful powder blue and matched her dress perfectly. She reports they are comfortable and fit true to size. She even purchased another dress when we returned to match them just so she’d have more opportunities to wear them. I can’t imagine anyone would be disappointed in these.
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Reviewed in the United States on April 22, 2023
★★★★★ 4
SIZE UP IF YOU ARE A HALF SIZE!
Size: 8, Color: Black
If you are a half size DEFINITELY size up! I am a 7-7.5, but in heels I’m usually a 7.5. I ordered an 8 and it fits perfectly!! They are super super cute but surprisingly not as comfortable as I thought considering it’s a pretty small heel. It’s not unbearable but I would keep that in mind if you’re planning to wear them standing for a long period of time. I didn’t see many reviews about people with half sizes except one and I listened to that one review and I’m very thankful I did. So PLEASE size up half a size.
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Reviewed in the United States on September 12, 2020
★★★★★ 5
Love these heels, must purchase
Size: 7, Color: Beige
My second pair of these have them in black and now tan. Perfect for any occasion. Fit well, comfy and beautiful
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Reviewed in the United States on May 9, 2026
★★★★★ 3
Size down!
These run big. I am a true size seven and need a six and a half which is not offered. Beautiful shoes! So disappointed!
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Reviewed in the United States on April 4, 2026