The Senseca HD32.3TC (formerly of the Delta Ohm product line, part of GHM Group Germany) is an advanced portable data logging system designed for in-depth thermal microclimate analysis and comprehensive Indoor Air Quality (IAQ) assessment. Engineered to meet rigorous international occupational health, ergonomic comfort, and environmental standards, this instrument serves as a premier solution for workplace hygiene inspections and HVAC performance verification.

1. COMPREHENSIVE THERMAL COMFORT & HEAT STRESS EVALUATION
The HD32.3TC integrates physical thermodynamic calculation algorithms that compute and display standardized comfort indices in real time:
• Global Thermal Comfort: Calculates PMV (Predicted Mean Vote), PPD (Predicted Percentage of Dissatisfied), and Mean Radiant Temperature (Tr) strictly conforming to ISO 7730, ISO 7726, and ASHRAE Standard 55.
• Local Thermal Discomfort: Computes Draught Rate (DR) and Local Turbulence Intensity (TU).
• Severe Heat Stress Assessment: Measures indoor and outdoor Wet Bulb Globe Temperature (WBGT) indices according to ISO 7243 regulations.
• Extended Bioclimatic Indices: Calculates Heat Index (HI), Universal Thermal Climate Index (UTCI), and Perceived Equivalent Temperature (TEP).

2. ADVANCED INDOOR AIR QUALITY (IAQ) & PATHOGEN DECAY ESTIMATION
Beyond basic microclimate logging, the instrument delivers multi-hazard environmental profiling:
• Carbon Dioxide (CO₂): Accurate measurement to detect ventilation deficiencies and verify compliance with ASHRAE 62.1 standards.
• Particulate Matter Profiling: Monitors breathable dust fractions PM1.0, PM2.5, and PM10 simultaneously.
• Exclusive Bio-safety Feature: Built-in scientific algorithm estimates the surface decay/inactivation timeline of the SARS-CoV-2 virus based on live environmental parameters (temperature and humidity), providing crucial safety data for healthcare facilities and high-density public buildings.

3. ULTRA-PORTABLE SMART HARDWARE ARCHITECTURE
• Direct-Mount Sensor Arrangement: The HD32.3TC is configured for rapid portable deployment, allowing SICRAM probes (including a compact 50mm black globe) to be connected directly to the top of the unit without trailing cables. It is supplied with a dedicated, compact carrying case tailored for cableless probes.
• Modern Intuitive Interface: Features a 4-inch color capacitive touchscreen (800 x 480 pixels) with real-time graphical visualization.
• Visual & Voice Logging: Integrated digital camera and voice microphone allow users to attach photographic and audio notes directly to logging sessions.
• Cloud & Wireless Connectivity: Built-in Wi-Fi enables automatic remote data synchronization to FTP servers and cloud platforms, complemented by an internal 8GB flash memory.

• Manufacturer: Senseca (Delta Ohm / GHM Group)
• Model: HD32.3TC
• Origin: Germany (100% Germany Origin)
• Product Category: Thermal Microclimate & Indoor Air Quality Data Logger
• Standard Inclusions: Small carrying case for probes without cable, 6000 mAh Li-ion rechargeable battery, USB cable, power supply adapter, DeltaLog10 analysis software.

[HARDWARE & INTERFACE]
• Display: 4-inch backlit graphic color LCD with capacitive touchscreen (800 x 480 pixels)
• Sensor Inputs: 3 smart probe inputs with SICRAM module technology (auto-recognition and calibration memory)
• Data Storage: 8GB internal flash memory (stores millions of data points)
• Multimedia: Built-in camera for site photos and microphone for voice annotations
• Connectivity: Wi-Fi, USB Host, USB Device, powered RS485
• Power Supply: Rechargeable Li-Ion battery 6000 mAh (>24 hours continuous runtime) or external USB power adapter
• Protection Class: IP54

[CALCULATED INDICES & STANDARDS COMPLIANCE]
• Thermal Comfort: PMV, PPD, Tr, DR, TU in compliance with ISO 7730, ISO 7726, ASHRAE Standard 55
• Heat Stress: Indoor and outdoor WBGT in compliance with ISO 7243
• Additional Thermal Indices: HI (Heat Index), UTCI (Universal Thermal Climate Index), TEP
• Indoor Air Quality: CO₂ concentration, particulate matter PM1.0, PM2.5, PM10 (ASHRAE 62.1)
• Bio-safety Modeling: Surface decay estimation for SARS-CoV-2

[PROBE MEASUREMENT SPECIFICATIONS (OPTIONAL SICRAM PROBES)]
• Dry Bulb Air Temperature (T): -40°C … +100°C; Accuracy Class 1/3 DIN
• Natural Ventilation Wet Bulb (Tnw): 0°C … +80°C; Accuracy Class A
• Globe Thermometer Temperature (Tg): -30°C … +120°C; Accuracy Class 1/3 DIN
• Relative Humidity (RH): 0 … 100% RH; Accuracy ±1.5% … ±2% RH
• Omnidirectional Air Velocity (Va): 0.05 … 5 m/s; Resolution 0.01 m/s
• Atmospheric Pressure (Patm): 600 … 1100 hPa; Resolution 0.1 hPa
• Carbon Dioxide (CO₂): 0 … 5000 ppm
• Particulate Matter (PM): 0 … 1000 µg/m³ (PM1.0, PM2.5, PM10)