SEW 2706 IM オーディオインピーダンステスター（0-20 / 0-200 / 0-2000 Ohm）

● True measurement of speaker systems actual impedance at 1kHz.
● Three test ranges (20Ω / 200Ω / 2000Ω) allow testing of home
    theater and commercial sound systems.
● Measures transformer impedances.
● Battery operated.
● Low battery indication.
● Data hold function.
● Timer function for continuous hands free operation.
● The timer can last about 3-5 minutes when users press.
● TEST ON/OFF button.