Sanwa AU-31 FEATURES :

?Auto range selection (V, Ω)
? Auto polarity
? High input impedance 1?10MΩ
? Series capacitor input ?AU-31 ACV only
? Auto 0Ω adjustment
? Inner battery check
? DC / AC auto selection ?AU-32 only
 ? 5 ranges DC / AC current ?AU-32 only 
Bandwidth : 40?10kHz (0.25V : ±5%), 40?600Hz
(2.5V and above : ±5%)
: 40?10kHz (0.3V : ±5%), 40?1kHz
(3V and above : ±4%)

Sanwa AU-31 SPECIFICATION :