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NIST Certified Observational Research Stopwatch
Achieve unparalleled accuracy in your research with our NIST Certified Observational Research Stopwatch. Specifically engineered for observational studies, this unique tool allows you to time subjects discreetly, whether in a controlled lab, a busy classroom, or out in the field. Its hands-free operation and silent alarm system ensure your presence doesn't influence or disturb the subjects, preserving the integrity of your data.
Precision Timing, Undisturbed Observation:
The core of this stopwatch is its silent alarm, audible only through the included headphone earpiece. This feature is perfect for captive and field research where silence is paramount. You can set repetitive alarm intervals from every quarter-second up to every hour, allowing for consistent, hands-free time tracking.
Advanced Features for Comprehensive Research:
- Dual Display: Features two 1/100th second displays. In stopwatch mode, it shows the current lap time and the cumulative total simultaneously. In timer mode, it displays the original setting and the countdown time.
- 8-Lap Memory: The device stores the last eight lap times, eliminating the need to divert your attention from your subject to take notes.
- Versatile Count-Up/Down: Capable of counting up or down for up to 10 hours, making it ideal for tracking multiple and simultaneous processes with precision.
- Intelligent Alarms: In timer mode, a warning alarm sounds 30 seconds before time elapses and again upon completion. The countdown cycles can be set to repeat automatically.
- Lap Counter & Pacesetter: The lap counter tracks up to 99 laps, while the pacesetter function can be set to beep at intervals from every 0.25 to 30 seconds, guiding your pace without visual cues.
Built for the Field:
Designed for real-world use, the stopwatch is shock-resistant and features a superb ergonomic grip. It comes ready to use with an earpiece and battery included.
- Dimensions: 2¾" x 2¼" x ¾"
- Weight: 2.6 oz
NIST Traceable Certification:
Your trust is our priority. Every new Sper Scientific® Digital Stopwatch undergoes rigorous testing in our in-house laboratory to confirm it meets or exceeds all published specifications. This certification is performed using standards and instrumentation traceable to the National Institute of Standards and Technology (NIST), guaranteeing the highest level of accuracy and reliability.
Your Certified Product Includes Complete Documentation:
- Unique Serial Number
- NIST Traceable Certification Label
- A comprehensive Certification Testing Report detailing the instrument's performance.