EICO 888 Engine Analyzer 

Permits checking the condition of the following Auto & Boat propulsion system components:
Storage battery
Generator or Alternator
Voltage regulator
Starter
Distributor
Ignition circuit

All assorted wiring of 4, 6 or 8 cylinder automobile or boat internal combustion (gasoline) engines
using a 6 or 12 Volt electrical system.

It can also be used to accurately determine the distributor dwell point angle and can be used as a tachometer.

Can perform the following measurements:
DWELL ANGLE
RPM
VOLTAGE
OHMMETER
DIODE TEST
CURRENT (AMMETER)
SPARK TEST
CONDENSER SUBSTITUTION

Unit is powered by (4) D Cells