4 Digit Digital Frequency Meters

Features: 4 Digit Display : 9999High AccuracyEasy To WireSpecifications: Display14.2mm (0.56") H, red LEDSampling timeAbt. 0.1 sec typicallyAux. power sourceAC 110V or 220V ± 10%, 50 / 60 HzPower Consumption≤ AC 5VAOperating temperature range0 - 60 CStorage temperature range- 10° ~ 70° CMax. relative humidity95%Dielectric strength (IEC 688)AC 2KV / 1 minuteInput to power terminalsAC 3KV / 1 minuteAll terminals to case OPERATING VOLTAGER-4050AESame as aux supplyR - 4050B10 - 500 V MODELMEASURING RANGERESOLUTIONINPUT IMPEDANCEACCURACYR - 4050 AE99.90 Hz0.01 Hz≥ 1 M0.1 Hz96R-4050 AER-4050 A & B99.9 Hz0.1 Hz≥ 1 M0.1 Mz96R-4050 A & B