⚡ Charge Ahead with Confidence — Know Your Battery’s Health Instantly!
The EZRED SP101 Battery Hydrometer is a professional-grade, hand-powered tool designed for quick and accurate measurement of battery acid specific gravity (1.100–1.300). Built with rugged ABS plastic, it withstands tough environments like service stations and garages. Its universal fit and easy-to-read design eliminate the need for complex temperature adjustments, making it ideal for both technicians and home users. Supported by a limited lifetime warranty, it ensures reliable battery diagnostics for years to come.
| Brand | EZRED |
| Power Source | Hand Powered |
| Style | 1 pack |
| Color | Factory |
| Item Weight | 2.4 ounces |
| Item dimensions L x W x H | 0.5 x 11.4 x 1.3 inches |
| Measurement Type | Specific Gravity Meter |
| UPC | 008965001070 |
| Manufacturer | EZRED |
| Global Trade Identification Number | 00008965001070 |
| Part Number | SP101 |
| Product Dimensions | 0.5 x 11.4 x 1.3 inches |
| Country of Origin | Taiwan |
| Item model number | SP101 |
| Is Discontinued By Manufacturer | Yes |
| Material | ABS Plastic |
| Item Package Quantity | 1 |
| Included Components | SP101 |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Limited Lifetime |
L**N
Perfect, Great value, perfect
Works very well. Excellent build quality. Ease of use and design is good. Able to use as a transfer from one cell to another. I squeeze the top slowly to absorb the material into unit. Extremely sensitive readings with this product which worked great for me. Do not breathe the fumes so this works very well in doing that. Be safe. Wash it up and put unit back into the package it came in. Awesome. Thanks
S**Q
Easy to read-small-plastic thus tougher than glass hydrometers.
The EZRed hydrometer works as well as a floating bulb hydrometer. Easy to read. No leaks. Works very well and made in the USA--no china manufacture. This hydrometer does require more battery liquid than a small ball hydrometer. Checking the condition of a small battery such as a motorcycle battery could be difficult because of insufficient volume of liquid.
G**2
Great hydrometer
This is a great hydrometer. It is well made, easy to read and easy to use. Sure beats the old baster style I used before.
P**I
Helpful tool
I found this easy to use to find out more about the condition of my batteries. Now I can compare the difference from a new to an old unusable battery.
K**I
Cheap, easy to use battery tester
I use this to check SG off a forklift battery that I'm using in my off-grid solar system.It seems to be working and SG tracks voltage as expected. It's easy to use and does the job. I didn't know how accurate it is as I didn't have anything to compare it to.I have a couple of criticisms, I wish it had numbers marked between fair and good so I don't have to estimate, and I see small cracking around the edges which I know can come from the method used to weld the 2 halves together or if solvent is used to clean it in the manufacturing process, but to be fair, I have also left this under the metal cover of my battery outside, so it has been exposed to the elements and temperature swings below freezing. So far no leaks but even if the long term durability isn't there, it's cheap enough to just buy another one.
J**G
High quality
High quality and works well. I used it to check my golf cart batteries. Thank you
L**L
Love it.
Very detailed and accurate. High quality materials.
R**B
Battery check
Works okay. Nothing special. Good value
Trustpilot
1 month ago
3 weeks ago
