The SPR-104 is a versatile thermo anemometer designed to measure air velocity, air flow (volume), and temperature with precision and ease. Featuring a large backlit LCD with dual displays and multiple status indicators, it ensures accurate readings in HVAC, environmental monitoring, and industrial applications. With data hold, MAX/MIN/AVG recording, unit conversion functions, and the ability to store two area values for repeated CFM/CMM calculations, this instrument provides comprehensive airflow analysis in a portable, user-friendly package.
- Air Velocity Measurement: Measures in m/s, km/h, ft/min, mph, and knots for versatile applications
- Air Flow Calculation: Calculates CFM (ft³/min) and CMM (m³/min) with manual area input
- Dual-Display LCD: Shows primary readings (velocity/flow) and secondary readings (temperature) simultaneously
- Data Hold Function: Freezes current reading for easy recording and documentation
- MAX/MIN/AVG Recording: Captures maximum, minimum, and average values for analysis
- Unit Conversion: Easily switch between different measurement units
- Backlit Display: Enhanced visibility in low-light conditions for field work
- Auto Power-Off: Conserves battery life with 18-minute auto shut-off (disabled in CFM/CMM or AVG mode)
- Memory Slots: Stores two area values for repeated CFM/CMM calculations
- Temperature Measurement: Built-in sensor measures ambient temperature (0°C to 50°C)
- Long Battery Life: Approximately 20 hours of operation on 3×1.5V AA batteries
| Specification | Details |
|---|---|
| Air Velocity Range | 0.40–30.00 m/s, 1.4–108.0 km/h, 80–5800 ft/min, 0.9–67.0 mph, 0.8–88.0 knots |
| Air Velocity Accuracy | ±(3% + 0.20 m/s) for m/s, ±(3% + 0.8 km/h) for km/h |
| Air Flow Range | 0–98,960 CFM (ft³/min) or CMM (m³/min) |
| Air Flow Resolution | 0.001–100 (adjustable) |
| Temperature Range | 0°C to 50°C (32°F to 122°F) |
| Temperature Accuracy | ±1.0°C (±2.0°F) |
| Battery | 3×1.5V AA (approx. 20 hours) |
| Auto Power-Off | 18 minutes (disabled in CFM/CMM or AVG mode) |
| Display | Backlit dual LCD (4-digit primary, secondary for temp) |
| Data Functions | HOLD, MAX/MIN/AVG recording, unit conversion |
| Memory Slots | 2 (stores area values for CFM/CMM) |