FY54 is a portable detector battery meter.It can measure a variety of automotive batteries and other uses lead-acid battery capacity status.

voltage testing rate: 0-16V  (Standard voltage storage battery test  12V )car storage battery tester
Testing capacity: 10-120AH
reflectoscope refector dissipated power: 500W

Simple and easy to use.
Test batteries on and off the vehicle .
Battery Life Analysis
Analysis Result : Good or Replace
Large easy to read analog pointer
Test Result: Good or Replace 
Weight:0.90 KG
Product size:195*93*42mm
Operating temperature: 0~ 40 ℃  RH < 80%
Accessory: test leads,manual,gift box 

1,Tester 6 or 12 Volt batteries;hardtop batteries,discharged batteries and maintenance free batteries;also built-in starter test,
2,Simple to use:completely portalbe:outside power not required;complete tests done in 30 seconds.
Accurate&dependable:shock resistantmovement
3,accurate to±2%;heavy-duty,color-coded,copper-platedclamps,ventilated;baked-enamel steel case.
4,It is maintenance free and no internal batteries required. It powers up when connected to the battery posts during testing.