| Spec's at 23°C (73°F) ambient | ETC 125 A | ETC 400 A | ETC 400 R IR Calibrator
|
| Minimum | -10°C / -14°F | 28°C / 82°F | 28°C / 82°F |
| Maximum | 125°C / 257°F | 400°C / 752°F | 400°C / 752°F |
| Heating time | ambient to 100°C / 212°F 11 minutes | ambient to maximum 5 minutes | ambient to maximum 5 minutes |
| Instrument weight | 1.8 kg / 3.9 lb | 1.6 kg / 3.5 lb | 1.7 kg / 3.7 lb |
| Instrument size LxWxH | 172x72x182 mm / 6.8x2.8x7.2 in. | 172x72x182 mm / 6.8x2.8x7.2 in. | 172x72x182 mm / 6.8x2.8x7.2 in. |
| Stability | 0.05°C / 0.09°F | 0.15°C / 0.27°F | 0.3°C / 0.54°F |
| Accuracy | 0.5°C / 0.9°F | 0.5°C / 0.9°F | 0.5°C / 0.9°F |
| Immersion depth | 110 mm / 4.3 in. | 105 mm / 4.1 in. | - |
| Holes for device-under-test | - | - | 3 mm hole for external reference probe |
| ETC125A type 01 | 12.5 - 8 - 6 - 4 mm | - | - |
| ETC125A type 02 | 1/2 - 3/8 - 1/4 - 5/32 in. | - | - |
| ETC400A type 11 | - | 1/16 - 1/8 - 5/32 - 1/4 - 3/16 in. | - |
| ETC400A type 12 | - | 1/16 - 3/16 - 3/8 - 1/4 - 1/8 in. | - |
| ETC400A type 21 | - | 2 - 3 - 4 - 4 - 6 mm | - |