* 11 in 1 professional environment instruments: 1. Air velocty/Temp., 2. Humidity/Temp., 3. Light SP-9201, UV Light SP-9202 4. Barometer, 5. CFM, CMM, 6. Dew point, 7. Wet bulb, 8. Wind chill, 9. Heat index, 10. Altitude, 11. Pt 1000 ohm Temp.( optional ) * Tiny bone shape with lightweight and small size case design are suitable for handling with one hand. * Wristlet design provides extra protection to the instrument especially for user one hand operation. * Low-friction ball bearing mounted wheel design provides high accuracy at high and low air velocity. * Exclusive photo diode and color correction filter light sensor, spectrum meets C.I.E. photopic. * High precision humidity sensor with fast response time. * Build in baro sensor for the atomsphere value and altitude measurement precisely. * Optional Pt 1000 ohm Temp. probe for the prcision Temp. measurement. * Built- in microprocessor circuit assures excellent performance and accuracy. * Concise and compact buttons arrangement, easy operation. * Memorize the maximum and minimum value with recall. * °C/ °F detection by pressing button on the front panel. * Hold function to freeze the current reading value.
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