DS-102 Sound Level Meter
DS-102 Sound Level Meter
Features
- Backlight display.
- Auto range and auto power off.
- Min/Max storage and recall
- Test range from 30 to 130 dB.
- A & C frequency weighting.
- Fast & slow dynamic characteristic models.
Specifications
| DS 102 | |
| Range: |
Lo: 30-80 dB Med: 50-100 dB Hi: 80-130 dB |
| Accuracy: | ±1.5 dB(ref 94dB@1 KHz) |
| Resolution: | 0.1 dB |
| Microphone: | 1/2 inch Electret condenser microphone |
| Frequency weighting: | A, C |
| Analog DC output: | 10mV/dB, impedance approx. 100 ohm |
| Dynamic range: | 50 dB |
| Frequency range: | 20 Hz-8 KHz |
| Battery: | DC 9V |
| Dimensions: | 280 x 80 x 32 mm |
| Weight: | 290 g (with battery) |
Manual:
DS-102.pdf
HT-390 Hygro Thermo Meter
HT-390 Hygro Thermo Meter
Features:
- Reasonable price, Lightweight and Compact.
- Microprocessor based for fast and accurate measurements.
- Simultaneous display Humidity and Temperature.
- Multi-functions: Data-hold, Max/Min, Record, Hi & Low alarm setting.
- Low battery indication and auto/manual power shut off.
Specifications:
| RH | Temp | |
| Range | 1~99.9 % RH | -40~60°C (-40~140°F) |
| Accuracy | ±2.5 % RH | ±0.3°C |
| Resolution | 0.1 % | 0.1°C |
| Sensor | 100 ohm RTD/Thin polymer capacitor | |
| Power | DC 9V battery, life span 200 consecutive hours | |
| Weight | 165 g | |
| Dimension | 85 x 30 x 1200 mm | |
DL-204 LUX Light Meter
DL-204 LUX Light Meter
Features:
- Low cost highest precision.
- Measuring intensities of illumination in Lux or Footcandles.
- Measuring lights source includes all visible.
- Multi-function for Data hold, Max. and Zero adjustment.
Specifications:
| 200, 2000, 20000, 200000 Lux | ||
| Range: | 20, 200, 2000, 20000 Footcandles | |
| Accuracy: |
±3%(calibrated to standard incandescent lamp 2856 K) ±8%(other visible light source) |
|
| Sensor: | Silicon photodiode and filter | |
| Angle deviation from cosine characteristics: | 30° | ±2% |
| 60° | ±6% | |
| 80° | ±25% | |
| Battery: | DC 9V | |
| Dimensions: | 185 x 55 x 38 mm | |
| Weight: | 250 g (with battery) | |
