價格：免費
檔案大小：14.2 MB
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
RollBy Train Speedometer is a free (and ad-free) speedometer and odometer for model trains on your iPhone or iPad. Requires a RollBy OnBoard Speedometer for each train, available from Boulder Creek Engineering (www.bouldercreekengineering.com).
Now you can see how fast your model train is traveling and how far it has gone. Measure the distance between towns, or the length of your sidings and yard tracks.
• Receives speed and distance with Bluetooth Low Energy (BLE) radio
• Continuously measures speed and distance while train is in motion
• Tracks more than one RollBy OnBoard Speedometer at the same time
• Measures Real and Scale Distance on your layout
• Displays elapsed Running Time
• Speed and Distance displayed in English (MPH, feet, miles) or Metric (KPH, meters, km)
• Requires iOS version 9.0 or greater with BLE capability
支援平台：iPhone, iPad