O2 Analyzer SP-2217
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*. Model : SP-2217
*. Range : 0 ~ 30 ppm
*. High, Low, STEL, TWA setting
*. LCD Digital Display
*. Max. Min. display function
*. Alarm Red Lamp
*. Alarm buzzer : 90dB
*. Alarm vibration
*. CR2 Battery powered
*. 54x91x32mm, 120g
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