AST2 Electronic Counter (Add + Subtract w/Backlight)Simple Electronic Counter - Up/Down Counting - AST2 & AT1

These Simple Electronic Counters AST2 & AT1 take the guess work out of digital counters. You'll love the ease of the large add and substract buttons. Backlight.
High quality, durable and affordable.  Adds and subtracts Automatically turns off after 30 minutes of no use - doesn't loose count  Long lasting batteries (CR123A included) Has a backlight for dark occasions Each model includes a wrist lanyard Button for turning sound off or on Ideal counters for people counting, concert venues, tourism, and more. Quantity Discounts: FOR WHOLESALE ORDERS OVER $1000 please email contact@ or call 845-402-8093 for wholesale pricing.

How can i make this counter stop until I press the start button

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How to program a digital up/down counter for beginners?