The Digital Lynx does not need any additional electrical shielding in the recording environment. The recording system was engineered and designed with differential amplifiers which subtracts artifact interference. In any recording environment, it is always a good idea to keep clear any electrical devices that have the ability to output electrical noise. If there is other electrical equipment in the experiment radius, it is good practice to isolate one single ground for all equipment. We also recommend that the subject is always placed on an ungrounded, non static generating surface while recording is occurring. As always, if you have any particular questions about a certain situation, feel free to contact us and we can recommend a solution.