This is a very versatile energsier . Comes complete with batteries ( 4x D cells ) and 12v adapter cable. Plus the usual Live cable, earth stake and earth lead.
The DP350 has a clever battery saving feature , it can have its pulse rate altered from 60 pulses per minute down to 20 per minute . This feature can more than double the life of the batteries ( 6v or 12v )
Instructions for the DP350 can be down loaded here DP350 2.6Mb PDF