The Easiest to Use Stopwatch in the World. Never make a timing error---don't worry about making a mistake. It's impossible to get the wrong time with the Robic SC-500E Silent or Audible Single event Stopwatch.

Water Resistant to 30 meters Break-Away Safety Lanyard helps prevent accidents, promotes safe use. Audible beep confirmation or silent operation--Ideal for volunteers; Eliminates timing errors. One-step timing for all events Start/stop/reset operation 1/100 second resolution to 10 hours--Ideal for finish line volunteers or lane monitor timing. Easiest to Use stopwatch ever made-Perfect for those many activities where only basic timing is required. The SC-500E can be used error-free, by anyone, for accurate results.

Human Interface Input: Buttons. Material: Plastic. Brand: Robic. Color: Black. Date First Available: September 13, 2010. Best Sellers Rank: #267,361 in Sports & Outdoors. Customer Reviews: 4.4 out of 5 stars 36 ratings 4.4 out of 5 stars. : B011HVQ4VO. Model Year: ?2015. Part Number: ?97802. Manufacturer: ?Marshall-Browning International Corp. Suggested Users: ?Unisex-adult. Material: ?Plastic. Color: ?Black. Brand Name: ?Robic. Item Dimensions LxWxH: ?3 x 1 x 4 inches. Package Weight: ?0.09 Kilograms. Item Package Dimensions L x W x H: ?8.5 x 4.9 x 0.8 inches.