There is now a facility to power the PD430, PD440, PD690 & PD700 proving devices with the addition of a 12V DC power connection point. The units can be powered by either alkaline batteries or a 12V power supply. There are two power supply units available for the proving devices, the PSUPD230 and the PSUHPAT12. The PSUPD230 can be connected to mains power and the PSUHPAT12 is a 12v power supply suitable for use in a car/van cigarette lighter.

• · Mains power supply
• · Compatible with Martindale PD430, PD440, PD690, PD700 & PD710