Vaisala DMT340 Dew Point and Temperature Transmitter with LCD Display, -60°C to 80°C Range

The Vaisala DMT340 is a high-precision dew point and temperature transmitter designed for demanding industrial environments including compressed air drying and metal treatment processes. Featuring the robust *DRYCAP sensor*, it delivers extremely reliable measurements with dew points as low as -60°C (-76°F), maintaining accuracy even in harsh conditions involving contamination from particulates, oil vapor, and chemicals.

Key technical specifications include:

• Dew point measurement range of -60°C to 80°C (-76°F to 176°F)
• Temperature measurement range of 0 to 80°C (32 to 176°F) with an accuracy of ±0.2°C
• Relative humidity range from 0% to 70% RH with an accuracy of 0.004% RH at 20% reading
• Fast response time of approximately 30 seconds for real-time monitoring
• Output via industry-standard 4-20 mA analog signal for integration with process control systems
• Equipped with an LCD display and intuitive menu for easy local data review and configuration
• Built-in auto-calibration ensures long-term stability and measurement reliability without frequent manual intervention
• Data logging capability storing up to one year of measurement history for trend analysis and quality control

This transmitter operates within power requirements of 10 to 35 VDC, making it suitable for varied industrial power setups. Its rugged construction and sensor design are critical for applications in biotechnology-related bioprocessing environments, where precise humidity and temperature control support functions such as molecular diagnostics, biomanufacturing, and synthetic biology research. The ability to resist contamination is essential for maintaining data integrity in controlled lab and industrial settings.

The Vaisala DMT340 is widely adopted in biomedical engineering and clinical diagnostics fields thanks to its reliable performance in humidity and temperature monitoring — functions vital for live-cell imaging chambers, fluorescence analysis setups, and critical environmental monitoring in research and production labs.

Keywords and Phrases: industrial dew point transmitter, humidity sensor with data logging, DRYCAP sensor technology, bioprocessing temperature monitoring, molecular diagnostics instrumentation, synthetic biology environmental controls, precision humidity and temperature measurement, process control sensor for biotechnology.