Vaisala DL2000 Temperature & Humidity Data Logger
[5 Models]The Vaisala DL2000 Temperature & Humidity Data Logger is designed for high-accuracy environmental monitoring, validation and mapping within pharmaceutical, biotechnology, healthcare and laboratory environments. Combining precision internal temperature and humidity sensors with optional analogue and Boolean input channels, the DL2000 provides a flexible solution for monitoring environmental conditions alongside critical process parameters.
Suitable for both standalone recording and networked monitoring, the DL2000 connects directly via USB or integrates with existing Ethernet, WiFi or Power over Ethernet (vNet) infrastructure. Compatible with both Vaisala ViewLinc for continuous monitoring and vLog for validation studies, it offers a single platform for ongoing compliance and qualification activities.
- High-accuracy temperature & humidity monitoring
- 10-year internal battery
- USB, Ethernet, WiFi & Power over Ethernet connectivity
- Compatible with ViewLinc & vLog software
High Accuracy Measurements
Integrated temperature and humidity sensors deliver precise environmental monitoring with SI-traceable calibration.
Flexible Connectivity
Connect directly via USB or integrate into existing Ethernet, WiFi or PoE monitoring networks.
Continuous Monitoring & Validation
Use the same logger for continuous environmental monitoring with ViewLinc or validation and mapping using vLog software.
Reliable Data Protection
Large onboard non-volatile memory and a 10-year battery ensure measurements continue even during network or power interruptions.
The Vaisala DL2000 is designed for accurate environmental monitoring and validation across regulated industries.
Typical applications include:
- Environmental monitoring
- Pharmaceutical manufacturing
- Biotechnology laboratories
- Cleanroom monitoring
- Stability storage monitoring
- Cold storage monitoring
- Temperature mapping & validation
- Warehouse environmental monitoring
- Healthcare & hospital monitoring
- GMP & GxP compliance
The Vaisala DL2000 combines precise environmental measurements with flexible connectivity and configurable inputs for a wide range of monitoring applications.
- Integrated temperature and humidity sensors
- Optional analogue current (4–20 mA) and voltage inputs
- Optional Boolean input for door switches or alarm contacts
- USB, Ethernet, WiFi and Power over Ethernet connectivity
- Compatible with Vaisala ViewLinc monitoring software
- Compatible with Vaisala vLog validation software
- 10-year internal lithium battery
- Large onboard non-volatile memory
- User-selectable sampling intervals from 10 seconds to once per day
- User-selectable FIFO or stop-when-full memory modes
- SI-traceable calibration
- Reports compatible with 21 CFR Part 11 and EU Annex 11
- Automatic recording during network interruptions
- Compact design for easy installation
The DL2000 series is available in several configurations to suit different monitoring requirements.
Sensor Specifications
| Specification | Relative humidity sensor | Temperature sensor |
|---|---|---|
| Sensor type | Integrated high-accuracy capacitive polymer RH sensor | Internal temperature sensor |
| Initial accuracy | ±1% RH from 10% to 90% RH at +20°C to +30°C ±2% RH from 10% to 90% RH at −20°C to +70°C | ±0.10°C at +20°C to +30°C ±0.15°C at −25°C to +70°C |
| Operating range | 0% to 100% RH −35°C to +85°C | −35°C to +85°C |
| Resolution | 0.05% RH | 0.02°C at +25°C |
| One-year accuracy | ±2% RH from 10% to 90% RH at +20°C to +30°C ±3% RH from 10% to 90% RH at −20°C to +70°C | ±0.15°C at +20°C to +30°C ±0.25°C at −25°C to +70°C |
| Calibration verification | Annual verification recommended | Annual verification recommended |
Memory and Sampling
| Specification | Details |
|---|---|
| Memory type | Non-volatile EEPROM |
| Data capacity | 35,100 12-bit samples |
| Memory modes | User-selectable wrap mode when memory is full (FIFO), or stop when memory is full |
| Data retention | More than 20 years without power |
| Sampling interval | User-selectable in 10-second increments |
| Sampling range | Once every 10 seconds to once per day |
General Specifications
| Specification | Details |
|---|---|
| Dimensions | 71 × 53 × 20 mm |
| Weight | 65 g |
| Operating temperature | −35°C to +85°C |
| Operating humidity | 0% to 100% RH |
| Interfaces | RS-232, USB, Ethernet, PoE and optional Wi-Fi network interface |
| Mounting | Magnetic strips and 3M Dual Lock fasteners |
| Compatible software | Vaisala vLog software and Veriteq viewLinc for continuous monitoring and alarming |
| Clock accuracy | ±1 minute per month at −25°C to +70°C |
| Electromagnetic compatibility | FCC Part 15 and CE |
| Power source | Internal lithium battery |
| Battery life | Up to 10 years at a one-minute sampling interval |
Why Choose the Vaisala DL2000?
The Vaisala DL2000 offers a unique combination of environmental monitoring, validation and process measurement within a single data logger.
By integrating accurate temperature and humidity sensing with configurable analogue inputs, it allows facilities to monitor multiple critical parameters without installing additional equipment.
Whether used for continuous environmental monitoring through ViewLinc or validation and mapping with vLog, the DL2000 delivers dependable long-term performance, secure data storage and the traceability required for regulated industries.
Its flexible connectivity, extended battery life and support for 21 CFR Part 11 and EU Annex 11 compliant reporting make it an ideal choice for pharmaceutical, biotechnology and laboratory environments where data integrity is essential.
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