Features Stepwise attenuating by circumgyrated dial: attenuating step 0.05dB Provide with the function of displaying dB and dBm attenuating value Alternative function of 10 minutes Auto-off without operation After off the instruments, the system will have the memorizing of the attenuating value and the attenuating step, in order to restore the system back to the previous shut down state when open the instruments next time Model No SH-VA300 Measurement Range（DB） A B 0-30 0～60 Resolution ±5% Operation temperature (℃) -10～+60 Storage temperature (℃) -25～+70 Auto power-off time (min) 10 Continuous working hours (h) 48 Dimensions (mm) (mm) 190×100×48 Power supply Rechargeable lithium battery Weight (g) 400
