Description
Overview:
The Sealey Ethylene Glycol Antifreeze Tester Disc Type (AK4120) is a compact, easy-to-use tool for checking the strength of ethylene glycol coolant in water-cooled engines. Made from tough, clear plastic with a lightweight form factor, it uses floating coloured discs to show the freeze protection level at a glance. An integrated temperature table helps you interpret readings whether the coolant is hot or cold, making it suitable for quick checks in workshops or on site. Designed for cars, vans, 4x4s and a wide range of plant and garden machinery with liquid cooling systems, it helps prevent costly engine damage caused by weak antifreeze. Reliable and practical, the AK4120 supports routine maintenance and seasonal checks with minimal mess and no power required.
Key Features:
- Six large coloured discs clearly indicate coolant freeze protection level for ethylene glycol-based antifreeze
- Clear, virtually unbreakable plastic body for durability and easy viewing of readings
- Works with hot or cold coolant, supported by an easy-to-read temperature reference table
- Simple squeeze-bulb operation for fast sampling and quick results
- Compact and lightweight for toolbox or glovebox storage
- Non-electronic design requires no batteries or calibration
- Suitable for professional workshops and DIY users alike
- Easy to rinse and keep clean after use to maintain accuracy
Typical Applications:
Routine winterisation checks, service inspections, and fault-finding on cars, vans, 4x4s, motorcycles, tractors, mowers, generators, and construction equipment with water-cooled engines. Useful for fleet maintenance, PDI checks, and workshop or mobile service use to confirm adequate freeze protection and help avoid overheating or freeze-related engine damage.
Also known as:
Coolant hydrometer, glycol tester, coolant strength tester, radiator tester, antifreeze hydrometer, coolant density tester, radiator hydrometer, ethylene glycol tester, coolant concentration tester.
Product Specifications
| L&S Part No. | SEAAK4120 |
|---|---|
| Manufacturer | Sealey |
| OEM No. | AK4120 |
| Unit of Sale | 1 |
| Size | Height: 58mm x Width: 117mm x Depth: 389mm |
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