Workshop refractometer for measuring antifreeze and battery fluids, delivering quick concentration and specific gravity readings. Practical for DIY mechanics and maintenance teams who need confidence before winter and routine servicing. Is the HHTEC Antifreeze Refractometer accurate, easy to calibrate and suitable for regular garage use?
⚡ At a Glance
- • Measuring Range: Ethylene glycol: -60°C to 0°C, 0–66.6% Vol; Propylene glycol: -50°C to 0°C, 0–62.4% Vol; Battery liquids: 1100–1400 sg
- • Best for: DIY mechanics, fleet maintenance and garage technicians needing routine fluid checks
- • Not ideal for: Users who require an instruction manual guaranteed to be in English
Covers ethylene glycol, propylene glycol and battery specific gravity ranges. Variable magnification and automatic temperature compensation support consistent workshop readings.
Clear concentration readings – with dedicated glycol and SG ranges
Measuring ranges include ethylene glycol -60°C to 0°C (0–66.6% Vol), propylene glycol -50°C to 0°C (0–62.4% Vol) and battery liquids 1100–1400 sg. Optical system uses a 4–8× magnification range with adjustable eyepiece.
Quickly determine freeze point and concentration so antifreeze dilution checks are straightforward and repeatable for winter preparation.
Simple calibration and stable readings – with zero calibration and ATC
Zero calibration performed with distilled water at 20°C. Automatic temperature compensation works between 10°C and 30°C.
Calibration stays straightforward and measurements remain consistent across typical workshop temperatures, reducing rechecks.
Comfortable optical viewing – with adjustable eyepiece for vision strengths
Eyepiece group can be adjusted across the 4–8× magnification system to suit myopia and hyperopia, so reading the scale without glasses is possible for many users.
Faster measurements and fewer read errors thanks to easier focusing, even for users who normally rely on spectacles.
✨ The 4 Key Reasons for HHTEC Antifreeze Refractometer
- Precision optics – Repeatable concentration readings thanks to 4–8× magnification in typical workshop conditions
- Automatic temperature compensation – Stable results between 10°C and 30°C ambient workshop temperatures
- Adjustable eyepiece – Readable scale without glasses for most users during quick checks
- Included pipettes – Safe, mess-free sampling for repeatable measurements in busy garages
📋 Technical Details at a Glance
- Category: Refractometer
- Measurement Type: Concentration and specific gravity
- Measuring Range (Ethylene glycol): -60°C to 0°C; 0–66.6% Vol
- Measuring Range (Propylene glycol): -50°C to 0°C; 0–62.4% Vol
- Battery liquids (Specific gravity): 1100–1400 sg
❓ Frequently Asked Questions
Q: Can it measure both ethylene and propylene glycol concentrations?
A: Yes. Ethylene glycol is measurable from -60°C to 0°C and 0–66.6% Vol; propylene glycol is measurable from -50°C to 0°C and 0–62.4% Vol.
Q: How is calibration performed?
A: Zero calibration uses distilled water at 20°C, and automatic temperature compensation is active between 10°C and 30°C to keep readings stable.
Q: Are sampling accessories included?
A: User reviews report that pipettes are included, which helps with safe and repeatable sample handling.
🏆 Our Verdict
Suitable for DIY mechanics, fleet technicians and garage workshops that need reliable antifreeze and battery fluid checks. Wide glycol ranges combined with adjustable optics, zero calibration and ATC make measurements consistent and practical for regular use. While upfront cost may be a consideration, durable construction and repeatable accuracy deliver good long-term value for routine maintenance.
