| 型號 | testo557 |
| 溫度測量范圍 | -50~ +150 °C |
| 溫度測量精度 | ±0.5℃ |
| 分辨率 | 0.1℃ |
| 探頭連接 | 2x連接(NTC) |
| 壓力測量范圍 | -1~60bar |
| 壓力測量精度 | ±0.5%全量程 |
| 分辨率 | 0.01 bar |
| 探頭連接 | 3x7/16*-UNF + 1x5/8"- UNF |
| 超載相對壓力(高壓) | 65 bar |
| 真空測量范圍 | 0 ~ 20000 micron |
| 真空測量精度 | ±(10 micron + 10 %測量值) (100 ~ 1000 micron) |
| 分辨率 | 1 micron (0 ~ 1000 micron) ， 10 micron (1000 ~ 2000 micron) ， 100 micron (2000 ~ 5000 micron) ，500 micron (5000 ~ 10000 micron），5000 micron (10000 ~ 20000 micron) |
| 重量 | 3250 g |
| 直徑 | 220x125x70mm |
| 操作溫度 | -20~ +50 °C |
| 防護等級 | IP42 |
| Product colour | Black |
| 電池壽命 | 250 h (without ilumination, without Bluetooth⑧, without vacuum probe) |
| Pressure media | CFC |
| 制冷劑 | R114; R12; R123; R1233zd; R1234yf (顯示:T8 ( testo 557)，客戶可自行通過"EasyKool" 軟件更新制冷劑; R1234ze; R124; R125; R13; R134a; R22;R23; R290; R32; R401A; R401B; R402A; R402B; R404A; R407A; R407C; R407F; R407H; R408A; R409A; R410A; R414B; R41 6A; R420A; R421A; R421B;R422B; R422C; R422D; R424A; R427A; R434A; R437A; R438A; R442A; R444B; R448A; R449A; R450A; R452A; R452B; R453a; R454A; R454B; R454C;R455A; R458A; R500; R502; R503; R507; R513A; R600a; R718 (H2O); R744(COz) |
| 系統要求 | requires ios 7.1 or newer; requires Android 4.3 or newer,; requires end device with Bluetooth 4.0 |
| Refrigerants update via App | R11; FX80; 112A; R1150; R1270; R13B1; R14; R142B; R152A; R161; R170; R227; R236fa; R245fa; R401C; R406A; R407B; R407D; R41; Ra11A; R412A;R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22 |
| 存放溫度 | -20~ +60℃ |
