Login
Observational Research Stopwatch
Observational Research Stopwatch
Observational Research Stopwatch
 Next

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
Easy Shipping

Quick Dispatch:

Your Observational Research Stopwatch orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Observational Research Stopwatch ships.

Need Help?
Questions about Observational Research Stopwatch, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Observational Research Stopwatch in your area.

Get Shipping Estimates

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
4.1 ★★★★★
Based on 1617 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Chiranjeev Shah
Louisville, US
★★★★★ 5
The base that fits!
Finally, easy to put together and the right fit just before summer. It was extra windy so I put extra weight.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
C
Verified Purchase
colonel227
Battle Creek, US
★★★★★ 5
Holds up in high winds
Easy set up and holds umbrella in high winds
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
B
Verified Purchase
Bela.blue.reviews
Cuba, US
★★★★★ 5
Sturdy umbrella base
Sturdy umbrella base. Heavy duty and should not blow over in the wind. Will hold up for years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
L
Verified Purchase
Lydia
Lowell, US
★★★★★ 5
Great
It is very sturdy, you can fill it with water or sand, easy to move around and the perfect base for any patio umbrella. I love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
T
Verified Purchase
TA
West Palm Beach, US
★★★★★ 5
Sturdy umbrella base
It’s really nice and sturdy umbrella base with wheels. The wheels make it easier to move wherever you want. Very easy to set up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026

recommand products

Chemistry Solved Past Papers 2011 2017
Chemistry Solved Past Papers 2011 2017
175.00
 International Lower Secondary Science Book 3
International Lower Secondary Science Book 3
472.50
 Faraz E Adab F.A 2
Faraz E Adab F.A 2
110.00
 Piyas |پیاس
Piyas |پیاس
175.00
 Biology Intermediate Part 2 Key Book
Biology Intermediate Part 2 Key Book
190.00