TR-Mark III匝數比測試儀用于檢查單相和三相變壓器匝數比 ，應用于生產和服務 
• 測量電壓，變比，電流和相移
• 擴展測量范圍用于測量電力變壓器，也就是電壓和電流變壓器
• 自動測量電壓范圍
• 由于接線一次無需調整，能夠快速測量
• 杰出的準確性和只有極小負載的被測設備
• 通過U盤來進行數據交換
• 集成打印機?
• 高性能保護電路；緊急停止
• 堅固、輕便、防水手提箱
• 免費的T-Base Pro分析軟件（見第6章，“軟件”）

TR-Mark III匝數比測試儀To minimize shock hazard, the instruments Ground Terminal must be connected to a properly grounded receptacle. In many cases, the quality of the safety ground provided by the power cord does not fulfill safety needs. Also the power cord supplied with the equipment must be connected an electrical receptacle with an electrical ground (safety earth ground). Non grounded instruments are dangerous and may cause instrument damage.