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Quick-adjust headband
Pack of 12
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Dual-Light Runtime: 10
API Thermo Hydrometer Eye Protection Quick-adjust headbandManufactured to ASTM specifications, these units have become the industry standard for close, accurate readings. Suitable for certification and as such serve as primary reference standards in many government and private laboratories. Temperature range is 0 to 150 F degrees with 2 degree divisions. API Chapter 9. 3 of the MPMS ASTM D and E100. These instruments combine API gravity scale with a thermometer in the body and are the standard and preferred
