These are just  a  few of the many variants we  have( which will be too long to add to this discription)
So,please contact our company for more info

 EXTECH 407750 DIGITAL SOUND LEVEL METER WITH RS232 INTERFACE C/W WINDOWS COMPATIBLE SOFTWARE
 TENMA 72-942 30DB-130DB, (+/-1.5DB) SOUND LEVEL METER
TES-TTR-TES1350A
TES TES-1350A SOUND LEVEL METER