| • Which competitor is the customer currently using? 目前用的品牌
• Auto Reset or Manual? 自動還是手動復位？
• SPST or SPDT? 單刀雙擲還是單刀單擲？
• Normally Open (NO) or Normally Closed (NC)? 常開還是常閉？
• Open pressure (with tolerance)? 斷開值
• Close pressure (with tolerance)? 接通值
• What connection fitting? Female Flare? Copper tube? NPT Male Fitting? Etc. 壓力連接模式
• What termination? Wire leads? If so, how long are the leadwires, and do they have any special connectors? Etc. 壓力引出模式
• Does the application require high cycle life? 需要高壽命的壓控嗎？
• What electrical load (i.e., what amperage) is the switch likely to experience? 負載電流
• What refrigerant is the customer using? 用什么樣的冷媒
• What annual volume (EAU) does the customer anticipate needing? 年用量
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