Trade Responsibly. Trade Responsibly.CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 84.60% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.
FxPro Help Centre - Glossary

Signal Line

Used in technical analysis, signal lines normally consist of moving averages used in combination with other technical indicators in order to generate buy or sell signals. Buy signals are usually triggered when a signal line is crossed upwards by the indicator in question and sell signals are triggered when it is crossed downwards.