CEM DT-9935 Digital LCR Meter 10KHz Inductance Capacitance Resistance Tester Sampling rate: 5 times/sec Overload Indication: "OL" or "-OL" Auto Power Off: 10 minutes Low battery power indication Dust and water proof Five selectable test frequency: 100 / 120 / 1K / 10K / 100K Hz Temp. coefficient: 0.15 (Spec. Acc)/C, &lt;18C or &gt;28C Safety: IEC61000 EMC standard Operating Temp: 0~50C, &lt;=80%R.H. Storage Tmep: -20~60C