Opto Circuits is showing tremendous volumes on the counter. Some 11.17 lakh shares have been traded since the morning compared to 2.36 lakh shares traded over a two-week average. The stock is currently up almost 11% at Rs.21.80 with an intra day high at Rs.22.50. Its 52-week average stands at Rs.44.50.

The stock is surging up, reacting to the announcement made by the company today morning that its subsidiary company, Cardiac Science Corporation has received the market clearance from the US FDA to market its Powerheart G5 automated external defibrillators (AEDs) with CPRD.

The AED is designed to enable rescuers to swiftly provide effective, life-saving therapy to aid a person who has suffered sudden cardiac arrest (SCA), a condition in which the heart suddenly stops beating due to ill regularities in its electrical system. Powerheart G5 AED with CPRD will be available for purchase in the US later this year.