• Which competitor is the customer currently using? 目前用的品牌
• Auto Reset or Manual? 自动还是手动复位？
• SPST or SPDT? 单刀双掷还是单刀单掷？
• Normally Open (NO) or Normally Closed (NC)? 常开还是常闭？
• Open pressure (with tolerance)? 断开值
• Close pressure (with tolerance)? 接通值
• What connection fitting? Female Flare? Copper tube? NPT Male Fitting? Etc. 压力连接模式
• What termination? Wire leads? If so, how long are the leadwires, and do they have any special connectors? Etc. 压力引出模式
• Does the application require high cycle life? 需要高寿命的压控吗？
• What electrical load (i.e., what amperage) is the switch likely to experience? 负载电流
• What refrigerant is the customer using? 用什么样的冷媒
• What annual volume (EAU) does the customer anticipate needing? 年用量