The SPR-103 is a compact, handheld 5-in-1 professional environmental meter designed for HVAC, environmental monitoring, and industrial applications. It combines an anemometer, airflow calculator (CFM/CMM), hygrometer, thermometer (built-in + Type K), and lux meter in one lightweight "bone-shaped" device. With microprocessor-based accuracy, dual-channel display, Max/Min memory, and selectable units, this versatile instrument is ideal for field technicians requiring multi-parameter environmental readings in a single portable tool.
- 5-in-1 Functionality: Air Velocity, Air Flow (CFM/CMM), Humidity, Temperature (Built-in & Type K), Light (Lux/Ft-cd)
- Compact "Bone" Shape Design: Lightweight ergonomic design for one-hand operation with wrist strap
- High-Accuracy Vane: Low-friction ball-bearing vane for precise air velocity measurement
- C.I.E. Photopic Spectrum-Matching Light Sensor: With correction filter for accurate light measurements
- High-Precision Humidity Sensor: Thin-film capacitance sensor for reliable humidity readings
- Type K Thermocouple Input: NiCr-NiAl thermocouple for extended temperature range (-100°C to 1300°C)
- Microprocessor-Based: Ensures high accuracy and stability across all measurements
- Dual-Channel LCD: Simultaneous readings display (e.g., Temp + RH or Temp + Velocity)
- Max/Min Memory: Records maximum and minimum values for data analysis
- Data Hold Function: Freezes current reading for easy recording
- Manual Area Input: For precise airflow calculation (CFM/CMM)
- Selectable Units: °C/°F, Lux/Ft-cd, m/s, ft/min, km/h, MPH, knots
- Light Meter Zero Calibration: Ensures accurate light measurements
- 9V Battery Powered: Convenient standard battery for easy replacement
| Parameter | Range | Accuracy |
|---|---|---|
| Air Velocity | 0.4–30.0 m/s 80–5,910 ft/min 1.4–108.0 km/h 0.9–67.0 MPH 0.8–58.3 knots |
≤20m/s: ±3% F.S. >20m/s: ±4% F.S. |
| Air Flow (CMM) | 0–54,000 CMM Area: 0.001–30.000 m² |
Depends on area input |
| Air Flow (CFM) | 0–1,908,400 CFM Area: 0.01–322.92 ft² |
Depends on area input |
| Humidity | 10–95% RH | <70% RH: ±4% RH ≥70% RH: ±(4% rdg + 1.2% RH) |
| Temperature (Built-in) | 0–50°C / 32–122°F | ±1.2°C / ±2.5°F |
| Temperature (Type K) | -100–1,300°C / -148–2,372°F | ±(1% rdg + 1°C) / ±(1% rdg + 2°F) |
| Light (Low Range) | 0–2,200 Lux / 0–204.0 Ft-cd | ±5% rdg ±8 dgt |
| Light (High Range) | 1,800–20,000 Lux / 170–1,860 Ft-cd | ±5% rdg ±8 dgt |
| Display | 8mm LCD | — |
| Operating Temperature | 0–50°C / 32–122°F | — |
| Operating Humidity | Max 80% RH | — |
| Power Supply | 9V DC battery | — |
| Dimensions | 156 x 60 x 33 mm | — |
| Weight | 160 g | — |