GhostUK, you can find all the info on their
website
As to your question (taken from the website):
Remuneration during training
During their training students will be remunerated in accordance with the regulations in force. An expatriation allowance and family allowances are paid in addition if appropriate. Single students who are expatriated are paid a net sum of € 1320 per month during the first phase of training (15 weeks), € 1651 per month during the second phase (approx. 5 months) and € 2198 per month during the final phase of training. These amounts include the obligatory deductions for contributions to cover insurance against sickness, accidents and disablement as well as a contribution towards the Agency’s own pension scheme. Additionally, when called upon to work shifts, staff will be paid the appropriate shift allowances.