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Observational Research Stopwatch
Observational Research Stopwatch
Observational Research Stopwatch
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Observational Research Stopwatch

Marsoni M251S
Sale price$49.95
Pay 4 payments of $12.49 a month.Shop Pay
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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  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 221 reviews
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Product Reviews
K
Verified Purchase
K
Chelsea, US
★★★★★ 4
Overpriced but beloved
Pattern Name: Ring, Size: 0.42 Ounce (Pack of 10)
I think these are so expensive but it really helps my teething dog!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
M
Verified Purchase
Madelyn Griffith-Haynie
Natrona Heights, US
★★★★★ 5
My Shih Tzu goes crazy for these!!!
Pattern Name: Ring, Size: 0.42 Ounce (Pack of 4)
My guy’s favorite treat. He sticks his nose on the bag and can barely wait for me to get it open. Doesn’t upset his digestion. Have ordered multiple times and will continue to do so.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
S
Verified Purchase
Sherry
Bozeman, US
★★★★★ 5
Dog friendly
Pattern Name: Lollipop, Size: 0.53 Ounce (Pack of 4)
My chihuahua loves these chicken tender lollipops
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
B
Verified Purchase
Brian Nowell
Carnegie, US
★★★★★ 3
🤷🏻‍♂️
Pattern Name: Lollipop, Size: 0.53 Ounce (Pack of 4)
Need to make sure you are supervising your dog. With in minutes my small terrier had the stick end down her throat with the whole ring end in her mouth. Had to hold the stick end and let her chew on the ring end. Lasted about 20 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
Julie
Phoenix, US
★★★★★ 5
Natural healthy dog treats.
Size: 3.8 Ounce (Pack of 1), Style: Sweet Potato, Ring
Our dog loves these treats. They're also not filled with the junk like in other treats. These are one maybe 2 ingredients only. Better for our pup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

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