Voltage stabiliser D1Spec with display Black

Voltage stabilizer D1Spec

• extends battery and alternator life
• improves the performance of all electrical devices in the car
• improves ignition spark power
• prevents rotation fluctuations during sudden power consumption (e.g. when the fan switches on)
• increases the car's power

It has a mask opening sensor (similar to those from alarms), after closing the display LEDs go out.

Made in Japan.