Gaugemaster Rolling Road LT Locomotive Tester is a must-have for any railway enthusiast. There are 5 sets of rollers .It is designed to work with N Gauge, OO Gauge, and HO Gauge locomotives, making it a versatile addition to your model railway. The set includes OO Gauge rollers, allowing you to test your locomotives on different types of track. The brand of this loco tester is Gaugemaster, and it is made specifically for model railway enthusiasts. It is perfect for those who want to test their loco . the ammeter is very useful for fault finding .
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