Range pounds/gallons 5.70-6.95,Graduated to 0.01, 320mm length

Hydrometer, 6.5 - 7.1 LBS./GAL.

Themometer ASTM 12F,-5 to +215°F

Short Form 7 1/2" Thermohydrometer 39-51 API

Range 775/825 kg/m3, -20 to +65 Degree C, ASTM 303hl/304hl.

THERMOHYDROMETER,700/750 Kg/M3 /65 DEG C, ASTM 302HL

Thermohydrometer API GRAVITY RANGE: 29-41, LENGTH, MM: 380, ASTM No: 54HL, With thermometer: 0-150 degrees fahrenheit. For more information go to Bulletin No.61

Fuel Type Thermohydrometer 56 HL, 49-61 API. 0-150 Degrees Fahrenheit. For more information see Bulletin No.61

Hydrometer w/thermometer. Metric density range (760/825 KG/M3)  hydrometers have ASTM numbers conform totally to ASTM E-100.  For more detailed information go to Bulletin No. 46

( FUEL TYPE) Thermohydrometer, 775/825 kg/m3, -10 to +40 degrees Celsius, ASTM 345 H. For more detailed information go to Bulletin No. 46

Fuel Type Thermohydrometer, 57HL, 59-71 API for more information see Bulletin No.61

Fuel Type Thermohydrometer, ASTM 58HL, 69-81 API, 0-150° Fahrenheit. For more information see Bulletin No.61

For carrying three 15 inch hydrometers. Case is made of plastic with body section felt lined. Ends of case have felt cushions. Its outstanding feature is the spring loaded hinge system that holds the lid open at any angle greater than 30 degrees, but will keep the case closed at any angle less than 30 degrees and under spring pressure.

JET FUEL Thermohydrometer(NON-MERCURY) 55HL, 39-51 DEG.API.  For more detailed information go to Bulletin No. 61

Thermometer Non Mercury,ASTM S12F-5 To +215F