• Light Meter
  
• HHC230
  
• Measures Light Intensity
• Wide Measuring Range 0 to 200,000 lux
• Spectral Response ƒ<8%
• Based on CIE Standard Illuminant A (2856K)
• Functions: Hold/Min/Max/Max-Min/AVG
• Auto Power Off (10 Minutes)
• Backlight with Auto-Off (15 Seconds)
  
  
• Optical RPM Meter
  
• HHC250
  
• Non-Contact Optical RPM Measurement
• Wide Measuring Range up to 99999 rpm with LED Spot Marking and Reflective Tape on Object
• Measuring Range Up to 40 cm (15.7") (Depending on Ambient Light)
• Functions: Hold/Min/Max/Max-Min/AVG
• Auto Power-Off (10 Minutes)
• Backlight with Auto-Off (15 Seconds)

Light Meter - HHC230

Optical RMP Meter - HHC250

Specifications
Range 100.0 to 99999
Accuracy: ±0.02% of rdg + 1 digit
Resolution:
    0.1 rpm: 100.1 to 19999.9 rpm
    0.1 rps: 1.7 to 333.3 rps
    1 rpm: 20,000 to 99,999
    1 rps: 334 to 1666 rps
Units: rpm/rps
Operating Temperature: 0 to 50°C (32 to 122°F)
Power: 2 “AAA” batteries (included)
Battery Life: 30 hours typical with alkaline batteries
Dimensions: 24.7 x 50.9 x 132.9 mm (0.98 x 2.0 x 5.2")
Weight: 110 g (3.9 oz)
Comes complete with batteries, carrying strap, protection cap, and reflective tape (5 each). 

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