Description
Product Overview
The Coolschmax Voltmeter 5918 is a compact, high‑brightness voltage meter designed for both outdoor and indoor use. Measuring just 2.36 x 2.36 x 1.18 inches and weighing 1.87 ounces, it offers a robust IP67 rating, protecting it from water splash and dust. Featuring adjustable voltage settings for Lithium, LiFePO4, and Lead‑Acid batteries, it delivers accuracy within ±1% and includes over‑voltage and under‑voltage alarms. The backlight can be set to always‑on or auto‑off, and the unit retains settings after power loss.
Usage

Ideal for automotive enthusiasts, solar system installers, and DIY hobbyists, this meter can be mounted on vehicle dashboards, solar charge controllers, or any equipment requiring real‑time battery monitoring. Its flexible bracket supports quick installation on flat or curved surfaces, making it suitable for RVs, boats, off‑grid cabins, and garage workstations.
Why Choose Us
Coolschmax combines durable engineering with user‑friendly features. The IP67 enclosure ensures longevity in harsh environments, while the memory‑retain function eliminates repeated setup. Professional installation guidance is provided, and our support team offers one‑on‑one assistance to guarantee optimal performance.
Key Features
- High‑brightness display visible under direct sunlight
- Adjustable voltage range for Lithium, LiFePO4, and Lead‑Acid batteries
- Integrated over‑voltage and under‑voltage alarm notifications
- IP67 waterproof and dustproof construction for rugged use
- Flexible bracket for fast, versatile mounting in any setting
FAQ
What battery types can the Voltmeter 5918 measure?
The device supports Lithium, LiFePO4, and traditional Lead‑Acid batteries, covering most automotive and solar applications.
Is the backlight always on?
You can choose between always‑on mode or an auto‑off timer to conserve power when the display is not needed.
Can the meter be installed outdoors?
Yes, its IP67 rating protects against water splash and dust, making it suitable for outdoor mounting on vehicles, solar panels, or weather‑exposed equipment.
Will my settings be lost after power is removed?
No. The power‑off memory retains all configured parameters, so you won’t need to re‑enter settings each time.
Do you provide installation support?
Coolschmax offers professional installation guidance and one‑on‑one assistance to ensure a smooth setup process.




Reviews
There are no reviews yet.