The SPR-105 is a comprehensive 5-in-1 environmental meter designed to measure air velocity, light, sound, humidity, and temperature in a practical handheld device. With a large dual LCD display showing simultaneous readings, this versatile instrument has been applied to HVAC, paint and facilities maintenance, and environmental laboratory utilization systems. Featuring precision sensors, data hold, MIN/MAX functions, and auto power-off, it provides accurate multi-parameter environmental monitoring for professionals requiring comprehensive measurements in a single portable tool.
- Large Dual LCD Display: Simultaneous display of Temperature and Air Velocity or Relative Humidity
- Reversible Display Characters: Display direction changes depending on Hygro-Thermo-Anemometer or Light-Sound Mode
- Built-in Low Friction Vane Wheel: Improves accuracy of air velocity measurements
- Precision Humidity Sensor: Thin-film capacitance sensor for fast response with thermistor for ambient temperature
- Type K Input: Measures temperature up to 2372°F (1300°C) with external thermocouple
- Precision Photo Diode: With correction filter for Cosine and color corrected light measurements
- Sound Level Measurement: Meets IEC 61672 class 2 using A frequency weighting and fast response time
- Auto Power Off: 10 minutes after last key press with disable feature for extended use
- Low Battery Indication: Alerts when battery replacement is needed
- Overrange Indication: Prevents measurement errors
- Data Hold Function: Freezes current reading for easy recording
- Min/Max Functions: Captures minimum and maximum values for analysis
- Complete Accessory Kit: Includes instruction manual, Type K temperature probe, sponge cover, pouch case, and battery
| Specification | Details |
|---|---|
| Air Velocity Range | 80 to 5910 ft/min 0.4 to 30 m/s 1.4 to 108 km/h 0.9 to 67 MPH 0.8 to 58.3 knots |
| Air Velocity Accuracy | ≤20 m/s: ±3% F.S. >20 m/s: ±4% F.S. |
| Temperature Range | 0 to 50 °C / 32 to 122 °F |
| Temperature Accuracy | ±1.2°C / ±2.5 °F |
| Humidity Range | 10 to 95 % RH |
| Humidity Accuracy | <70% RH: ±4% RH ≥70% RH: ±(4% rdg + 1.2% RH) |
| Type K Thermometer Range | -50 to 1300 °C / -58 to 2372 °F |
| Type K Thermometer Accuracy | ±(1% rdg ± 1°C) / ±(1% rdg ± 2°F) |
| Light Meter Range | -9.4 to 44.2 °C (15 to 112 °F) |
| Light Meter Accuracy | ±(5% rdg ± 8 dgt) |
| Sound Meter Range | 35 to 130 dB |
| Sound Meter Accuracy | ±1.4 dB |
| Operating Temperature | 0 to 50 °C (32 to 122 °F) |
| Operating Humidity | Max. 80% RH |
| Power Supply | 6 x AAA (1.5V) batteries |
| Dimensions | 248 x 70 x 34 mm, Vane: 1.2" (31 mm) |
| Weight | 335 g |