The Raychem TraceTek TTA-1 was a single zone Leak Detection Panel capable of monitoring up to 15 Metres of:
TT100 or TT1000 water detection sensing cable.
TT3000 water/aqueous chemical sensing cable.
TT501 or TT5000 Hydrocarbon sensing cable.
It had a solid metal enclosure (IP20) and unusually the panel had 2 sets of clean relay contacts for Leak and a further 2 sets for fault.
The system can be supported but spare parts for the panel are no longer available.
TraceTek TTA-1 Data sheet (1996)