Technical specifications for Vaisala VL 2000 and SP 2000 temperature‑humidity loggers used in regulated and pharmaceutical environments.
The VL 2000 and SP 2000 series are compact, battery‑powered loggers that record temperature and humidity with high accuracy and NIST‑traceable calibration. They offer multiple communication options (RS‑232, USB, Ethernet, Wi‑Fi, PoE) and optional current or voltage inputs for additional parameters.
Both models provide long‑term data retention with non‑volatile EEPROM, up to 122,197 12‑bit samples, and a 10‑year internal lithium battery when sampled at 1‑minute intervals. The devices meet FCC Part 15 and CE electromagnetic compatibility standards and are suitable for labs, cleanrooms, and stability chambers.
| Sensor Type | Integrated high‑accuracy capacitive polymer RH sensor |
|---|---|
| Humidity Initial Accuracy | ±1 %RH (20‑30 °C) |
| Temperature Initial Accuracy | ±0.10 °C (20‑30 °C) |
| Operating Temperature Range | -35 °C to +85 °C |
| Humidity Operating Range | 0 %RH to 100 %RH (non‑condensing) |
| Resolution (Humidity) | 0.05 %RH |
| Resolution (Temperature) | 0.02 °C at +25 °C |
| Battery Life | 10 years at 1 min sampling rate |
| Memory Capacity | 122,197 12‑bit samples |
| Physical Size | 3.4 × 2.3 × 1 in (85 × 59 × 26 mm) |
| Interfaces | RS‑232, USB, Ethernet, Wi‑Fi, PoE |
The internal lithium battery lasts up to 10 years when sampling at a 1‑minute interval.
They support RS‑232 serial, USB, Ethernet, Wi‑Fi, and Power over Ethernet (PoE).
The devices operate from –35 °C to +85 °C.
±1 %RH over 10 %RH to 90 %RH.