Rotronic HL-1D Humidity and Temperature Data Logger
Rotronic HL-1D Humidity & Temperature Data Logger
Compact IP67 humidity & temperature data logger with 32,000-point memory, ±2% RH accuracy, LCD display, USB connectivity, and FDA/GAMP-compliant software.
The Rotronic HL-1D is a compact, robust humidity and temperature data logger ideal for logistics, pharmaceuticals, storage, and environmental monitoring. It features ±2% RH accuracy, ±0.3°C temperature accuracy, 32,000 data point capacity, an LCD display, and operates from –30…70°C and 0…100% RH. The USB-Mini interface and HW4-Lite software allow simple configuration, data download, and reporting.
Key Features
Measures Humidity, Temperature, Dew Point
Humidity accuracy: ±2% RH @ 23°C (10–90% RH)
Temperature accuracy: ±0.3°C @ –20…70°C
32,000 data points storage
Logging interval: 30 sec to 24 h
LCD 2-line display (updated every 5 sec)
IP67 protection
MIN / MAX / AVG functions
LED indications (logging OK / alarms)
USB-Mini interface
Runs on 1 × CR2 battery (1-year life at 1-hour interval)
FDA 21 CFR Part 11 & GAMP 5 compliant HW4 software
Technical Specifications
| Parameter | Specification |
|---|---|
| RH Range | 0…100% RH (non-condensing) |
| RH Accuracy | ±2% RH @ 23°C (10–90% RH) |
| Temp Range | –30…70°C |
| Temp Accuracy | ±0.3°C (–20…70°C) |
| Dew Point | Calculated (WMO method) |
| Storage Capacity | 32,000 lines |
| Logging Interval | 30 sec – 24 h |
| Communication | USB-Mini |
| Software | HW4-Lite |
| Battery | 1 × CR2 (1 year @ 1h logging) |
| Protection Class | IP67 |
| Dimensions | 90 × 60 × 23 mm |
| Weight | 85 g |
Applications
Cold-chain & logistics monitoring
Pharmacies & pharmaceutical production
Environmental storage monitoring
HVAC room/warehouse checks
What’s in the Box
Rotronic HL-1D data logger
CR2 battery
Calibration & function certificate
Quick instruction manual
FAQ
Q: Does HL-1D support dew point?
Yes—dew point is calculated internally from RH & temperature.
Q: Is the software free?
Yes—HW4-Lite is included.
Q: Is it suitable for cold-chain logistics?
Yes—rated for –30…70°C and IP67 protection.
Q: How long will the battery last?
~1 year at 1-hour logging interval.