Astro-Med PM-02D Overview Astro-Med, Inc. PM-02D Performance Characteristics: Form Factor: Module (proprietary interface/bus) Minimum Voltage: 100 mV Maximum Voltage: 500 V Maximum Frequency: 25 kHz Input Impedance: 2 MOhm Astro-Med, Inc. PM-02D Measurements/Features: Max input 500 VDC or AC peak CMV +/-10V between 100mV-5V Differential Input type CMR 80 dB @ DC Non-linearity <0.1% full scale Auto-calibration 12 step attenuation Peak-peak/True RMS measurement Status reporting OverRange protection