The SPR-146 is a compact, USB-powered temperature and humidity data logger designed for continuous monitoring in environments ranging from -30°C to 60°C (-22°F to 140°F). With 20,010 data points storage and customizable sample rates (1min–24h), it is ideal for HVAC, cold chain logistics, laboratories, and industrial storage. Features include alarm indicators, auto-PDF reporting, and CR2450 battery operation.
- Dual monitoring: Measures temperature (-30°C to 60°C) and humidity (0–100% RH) with high accuracy
- Data logging: Stores 20,010 records with adjustable sample rates (1min–24h)
- Alarm system: Visual LED alerts (red/green) for out-of-range conditions
- USB connectivity: Auto-generates PDF reports upon PC connection; includes software for configuration
- Low-power design: CR2450 battery with optimized performance at room temperature
- User-friendly: Simple mechanical switch, LCD display, and one-button operation
| Parameter | Details |
|---|---|
| Temperature Range | -30°C to 60°C (-22°F to 140°F) |
| Temperature Accuracy | ±0.5°C (0–60°C) / ±1°C (-30–0°C) |
| Humidity Range | 0–100% RH |
| Humidity Accuracy | ±3.0% (40–60% RH) / ±3.5% (20–80% RH) / ±5.0% (extremes) |
| Resolution | 0.1°C, 0.1% RH |
| Memory Capacity | 20,010 data points |
| Sample Rate | 1 minute to 24 hours (adjustable) |
| Battery | CR2450 (replaceable) |
| Interface | USB (plug-and-play for data download) |
| LED Indicators | Green (normal), Red (alarm/memory full) |
| Operating Conditions | -30°C to 60°C, 0–100% RH (non-condensing) |