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Environment equipment

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DL-204 LUX Light Meter
  • 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.


  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)

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EM-191 Magnetic Field Meter
  • An electromagnetic wave simply means the wave motion of the electromagnetic field (EMF).
  • This meter is applied to measuring electromagnetic fields of extremely low frequency (ELF) of 30Hz to 300Hz.
  • It is capable of measuring the electromagnetic field radiation intensity that is produced from electric transmission equipment, power line, electric oven, air conditioner, refrigerator, computer monitor, video/audio device and so forth.
  • The magnetic field unit is Tesla(T), Gauss(G), micro-Tesla(uT) or milli-Gauss(mG).
  • Data hold, Maximum hold, Overload indication, Low battery indication.


Range 200 ~ 2000 mG  20 ~ 200 μT
Accuracy ±(2.5% + 6 dgt) at 50 Hz/60Hz
Resolution 0.1/1 mG, 0.01/0.1μT
Frequency response 30 ~ 300 Hz
Sensor Single Axis
Power DC 9V battery
Dimension 130 x 56 x 38 mm
Weight 180 g

  • 9V Battery
  • Cloth case
  • Instruction manual
  • Gift box
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HT-390 Hygro Thermo Meter
  • 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.

  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

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