The ML2437A and ML2438A Power Meters combine the advantages of thermal meter accuracy, diode meter speed, and peak power meter display graphics. The result is a single instrument that samples at more than 35K per second and achieves 90 dB dynamic range with a single sensor. These meters include graphics display capability as a standard feature. The ruggedized housing and optional high-capacity NiMH battery bring laboratory quality accuracy to field service applications. ML2437A has one input, and ML2438A has two inputs.Frequency Range: 100 kHz to 65 GHz (Sensor dependant)Meter specifications apply to MA2400A/B Series Power Sensors. Compatible with MA and MP Series sensorsMA2420A/B Series Thermal Sensors:50 dBMA2440A Series High Accuracy Power Sensors:87 dB CW, > 57 dBPeak MA2460A/B Series Fast Diode Sensors:80 dBMA2470A Series Power Sensors:90 dB CW, > 60 dB PeakMA2480A Series Universal Sensors:80 dBPower Measurement Range: -70 to +47 dBm (0.1nW to 50W), sensor/attenuator depen