· 小而強大 (Small and powerful)
· 用戶友好 (User friendly)
· 高反差高亮度 LED 顯示屏 (High contrast bright LED display)
· True RMS測量 (True RMS measurements)
· 可顯示多達 30 電氣參數 (More than 30 electrical parameters displayed)

UPM304是一種能測量三相系統主要電氣參數的數字表。它可測量甚至被扭曲的波形。(UPM303 is a digital meter able to measure the main electrical parameters on three-phase systems. It provides accurate measurements even by distorted waveform.)

高亮度LED顯示屏，確保光照條件不好時獲得可視性。(The high brightness LED display ensures maximum visibility even in difficult environment lighting condition.)

用戶可方便通過儀表按鈕盤或經由PC機設置工作參數 (The working parameters can be easily set up by instrument keypad or PC.)

可通過選項定制基本儀表適合特定應用 (The basic instrument can be customized with some options to fit the specific application.)

UPM304是一緊湊型，費效比高的儀表。 即可作獨立儀器，也可作廣域能源監測和管理網絡的組成部分運行。 (UPM303 is a compact, cost effective meter operating both as a stand-alone device or as an integral part of a more extensive energy monitoring and management network.)

UPM304可替代許多指針表(模擬表)，如電壓表，電流表，有功功率表等單一功能儀表。 (UPM303 replaces multiple analog meters as well as single function meters such as voltmeters, ammeters, wattmeters, etc.)