Durability rank 耐久性等级 | Stationary Surface Temperature probes 固定表面温度探针 | Moving / Rotating Surface Temperature probes 移动/旋转表面温度探针 | Liquid or Gas Temperature probes 液体或气体温度探针 |
| A | More than 50,000 contacts 超过 50,000次点击测温 | More than 1500 hours continuously 超过 1500小时连续测温 | Long lived(indefinable) 长时间使用不可预见 |
| B | More than 10,000 contacts 超过 10,000次点击测温 | More than 1000 hours continuously 超过1000小时连续测温 | More than 1 year 大于1年 |
| C | More than 5,000 contacts 超过5,000次点击测温 | More than 500 hours continuously 超过500小时连续测温 | More than 6 months 大于6个月 |
| D | Less than 5,000 contacts 小于5,000 次点击测温 | Less than 500 hours continuously 小于500小时连续测温 | Less than 6 months 小于6个月 |
| S | Can not evaluate because of special-application 特殊型探针耐久性不可预见 |