Blue Sea 1838 M2 AC Multimeter [1838] Camping | Portable Power D size ball adapter for

D size ball adapter for 9"-12" fishfinder gimbal brackets

Adding a second battery prevents getting stranded with a dead battery by isolating the start battery from the house loads that can quickly discharge a battery

additional holes may need to be drilled for proper fit with your electronic device

Use with any Spring-Lock™ or Clip-Lock non-locking post (sold separately)

Water-resistant design with standard ring or fork type terminals allows for simple wiring with standard tools

Blue Sea 1838 M2 AC Multimeter [1838] Camping | Portable Power D size ball adapter forM2 AC Multimeter Monitors AC Amps, Volts, Hzs on large, bright display. Supports programmable current transformer ratios. Accurately measure and monitor AC amperage, voltage and Hz. (measures 2 voltages and 2 circuits) Features: Auto dimming, bright OLED display is easy to read Easy to adjust 92dB alarm on all models Isolated MOSFET relay Specifications: Meter: Current, Frequency, Power, Voltage Function: 50 to 250V to 300A Alarms: High Low Current,