We also provide other models of AVRs:8A,12A,15A,R230,R250; R438,R448,R449,SX460 and so on. SX460 Stamford Automatic Voltage Rgulator Environmental:Vibration 20-100Hz 50mm/sec 100Hz – 2k Hz 3.3gOperating temperature -40 to + 70CRelative Humidity 0-70C 95%Storage temperature -55 to +80C Related AVR Products: 100% Real Detail AVR-8A Photos