多功能三用電錶
交流電壓/直流電壓自動轉換
真均方根讀值/雙液晶顯示
最大/最小讀值發生時間
自動選檔/手動選檔(31檔)/自動關閉電源

Check current draw in motors and compressors.
Use MAX/MIN/Recording in the temperature mode to assess efficiency.
Test run/start capacitors.
Confirm low voltage control signals.
Measure flame safeguard device current draw.