Brannan Stopwatch – 1/100 Second, Waterproof to IP65 (Large LCD)

This high‑performance Brannan Stopwatch is a robust and reliable timing instrument designed for school laboratories, sports sessions, and general classroom use. Featuring a clear large LCD display, it offers 1/100 second precision, split timing, and a full suite of timekeeping functions including clock, calendar, and alarm.

Built to withstand demanding environments, the stopwatch is waterproof to IP65, meaning it is resistant to dust and water spray—ideal for both indoor and outdoor activities. It comes complete with an adjustable wrist strap and lanyard for secure and comfortable use. Powered by a single LR44 battery (included), it is ready to use straight out of the box.

Key Features

• 1/100 second accuracy for precise timing
• Waterproof to IP65 – protected against dust and water spray
• Split timing function for recording intermediate times
• Measures up to 23 hours, 59 minutes, 59 seconds
• Clock display showing hours, minutes, and seconds
• 12/24 hour selectable time format
• Calendar function displaying day, month, and year
• Includes adjustable wrist strap and lanyard for easy carrying
• Powered by 1 × LR44 battery (included)

Ideal for School Science Lessons & Practical Activities

Perfect for KS2, KS3, GCSE, and A‑Level science, this waterproof stopwatch is an essential tool for timing‑based investigations and demonstrations. It is commonly used for:

• Measuring reaction times in biology and psychology activities
• Recording rates of reaction in chemistry experiments
• Physics investigations including motion, speed, and acceleration
• Fieldwork measurements in outdoor conditions thanks to IP65 protection
• Supporting accurate timing and data collection across all science disciplines

Reliable, easy to use, and designed for educational environments, this Brannan stopwatch provides precise timing for a wide range of practical science tasks and classroom activities.