Fluke 3210/RPM Flexi-CT Flexible Current TransformerFluke Power Quality Current Transformers are specially designed to work seamlessly with Fluke Power Quality RPM Full Disclosure Power Monitors. All Flexi CTs are matched to take full advantage of your instruments ability to set scale factors for accurate readings. The 3210 RPM Flexi CT Flexible Current Transformer features: Current range: 20 1000A Accuracy: 1% RDG + 0. 15% FS Frequency response: 7 kHz Length: 24 (0. 6 cm)