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| Measuring range | J: - 210 to +1200 °C / -346 to +2192 °F |
| K: -200 to +1372 °C / -328 to +2501 °F | |
| T: -250 to +400 °C / -418 to +752 °F | |
| N: -200 to +1300 °C / -328 to +2372 °F | |
| E: - 150 to +950 °C / -238 to +1742 °F | |
| R: 0 to +1767 °C / 32 to +3212 °F | |
| S: 0 to +1767 °C / 32 to +3212 °F | |
| Resolution | °C: 0 < 1000 °C: 0.1 °C and 0 ≥ 1000 °C: 1 °C |
| °F: 0 < 1000 °F: 0.1 °F and 0 ≥ 1000 °F: 1 °F | |
| Intrinsic uncertainty | |
| J, K, T, N, E | 0 ≤ -100°C ± (0.2% L + 0.6°C) |
| -100°C < 0 ≤ +100°C ± (0.15% L + 0.6°C) | |
| +100°C < 0 ± (0.1% L + 0.6°C) | |
| R, S | 0 ≤ +100°C ± (0.15% L + 1.0°C) |
| +100°C < 0 ± (0.1% L + 1.0°C) | |
| Manual registration | Short press MEM button: point measurement recording / Long press REC button: interval recording according to set mode |
| Scheduled Registration | Activation date, recording intervals (1 second to 1 hour) and stop date customisable via PC software |
| Alarms | Software-configurable alarm thresholds. Visual alarm on the instrument when set values are exceeded. Possibility to activate recording when alarm thresholds are exceeded |
| Memory | Over 1 million points |
| Min / Max / Hold | Yes |
| Unit of measurement | °C / °F |
| Backlit display | Yes |
| Automatic switch-off | Yes, programmable |
| Power supply | 3x AA batteries, mains power supply, micro USB |
| Autonomy | 1000 hours |
| Registration | 3 years (sampling rate: 15 minutes) |
| Interface | Bluetooth, USB |
| Fixing | The housing is equipped with a magnet, a wall-mounting system and a groove for suspension installation. |
| Dimensions | 150 x 72 x 32 mm |
| Weight | 260 grams (with batteries) |
| IP Rating | IP54 |
| Manufacturer | AMRA Chauvin Arnoux |
| Model | C.A 1821 |
| Manufacturer code | P01654821 |
