MeasuRite via Amazon offers Prime members the Smart Weigh Digital Pro Pocket Scale in Silver, model no. TOP2KG, for $16.99 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping adds $6.55.) That's $33 off and the lowest total price we could find. It doubles up as a postal scale and features 0.1 gram sensitivity and a backlit LCD display.