LRAD Corp. started the month of February by announcing a group of international orders totaling more than $1 million.
The company, based in 4S Ranch, produces mass-notification systems and acoustic hailing devices able to send voice over a very long distance.
Customers include law enforcement, public safety and defense agencies in China.
Japanese customers bought tsunami warning systems and systems for maritime applications.
Shares of LRAD trade on the Nasdaq as LRAD.