Multi-channel humidity / temperature data-logger
VAISALA

Vaisala's Veriteq 2000 series loggers are designed for critical environments and regulated industries. Ideal for pharmaceutical and cleanroom applications, each temperature and humidity data logger comes with NIST-traceable, ISO/IEC 17025 calibration. The 2000 data logger combines internal temperature and RH sensors with an optional external channel for either current or voltage inputs for recording parameters such as differential pressure, CO2, level, particles, or conductivity. The 2000 recorder can also include a Boolean channel for door switches or alarm contacts. Ideal for use in standalone or networked applications, the 2000 data recorder connects directly to a PC with USB or installs to an existing network via Ethernet, Power over Ethernet or Wi-Fi. Each recorder contains a 10-year battery and onboard memory for recording a wide range of parameters at the point of measurement.

Operating range is -35°C to +85°C, 0% RH to 100% RH (non-condensing)

Vaisala's unique 1-year humidity accuracy specification (logger accuracy 1 year after original deployment) is ±2% RH over 10% RH to 90% RH at +20°C to +30°C and ±3% RH over 10% RH to 90% RH at -20°C to +70°C.
Temperature accuracy is also best-in-class at ± 0.15 °C over +20 °C to +30 °C (± 0.27 °F over +68 °F to +86 °F) and ± 0.25 °C over -25 °C to +70 °C (± 0.45 °F over -13 °F to +158 °F).