Single Meter Dual Display Volt Meter (Blue display)

Price range: $15.95 through $25.95

Monitor two 12V batteries simultaneously with the True® Single Meter Dual Display Voltage Gauge. Designed for UTVs, RVs, boats, and off-road vehicles, this compact, waterproof meter features dual blue LED readouts, reverse polarity protection, and easy installation for reliable, real-time voltage tracking.

  • Bright dual Blue LED display
  • Durable & Weatherproof Design
  • Displays real-time voltage for two separate 12V batteries simultaneously
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Description

Trusted by Leading Brands

A TRUE®  exclusive!

True® Single Meter Dual Display (Blue display)  is a compact voltmeter designed to monitor two independent 12V battery systems simultaneously. It features dual blue LED displays for real-time voltage readings, supports a wide range of 0–30V, and is built for rugged environments like UTVs, RVs, and marine setups.

TESTIMONIALS

“The Single Meter Dual Display Volt Meter gives me peace of mind. Compact, waterproof, and easy to install, it monitors both batteries at once with a bright blue LED display. Accurate readings keep my UTV and RV powered reliably. It’s durable, space‑saving, and worth every cent for dependable dual battery monitoring.”

Mark Anderson, Off-Road Enthusiast

Frequently Asked Questions!

1. What is P.E.P.® (Proprietary Efficiency Programming)?
  • P.E.P.® is TrueAm’s smart logic that optimizes battery protection and charging efficiency.
  • It ensures the isolator only connects when safe and beneficial for both batteries
  • No, the SBI doesn’t regulate amperage. That’s handled by your alternator and voltage regulator.
  • The SBI simply controls when the second battery is connected based on voltage thresholds.
  • DIY-friendly with waterproof cables, 3M Dual Lock™ fasteners, and clear wiring diagrams.
  • Can be mounted on any clean flat surface—including directly on the battery case

 

  • The male connector underneath can be wired for remote shutoff.
  • Inline switches are optional but not required—SBI handles disconnection automatically.

 

🔧 Core Features

  • Dual Blue LED Display: Bright, easy-to-read voltage readings for two separate batteries.
  • Real-Time Monitoring: Displays live voltage levels for both batteries at once.
  • Waterproof and Durable: Designed for rugged environments like UTVs, RVs, boats, and off-road vehicles.
  • Reverse Polarity Protection: Prevents damage from incorrect wiring.
  • Easy Installation: Simple setup for quick integration into your vehicle or system.

❓FAQ's

Can You Use the True Dual Display Voltmeter on Lithium Vehicle Batteries?
Yes, the True® Dual Display Voltmeter works perfectly with lithium batteries in vehicles. It’s built to monitor two independent 12V systems and supports a voltage range of 0–30V, which covers typical lithium battery levels.

How is a voltmeter connected in a circuit?
A voltmeter should always be connected in parallel with the part of the circuit you’re measuring.

Why must a voltmeter have high internal resistance?
To avoid drawing significant current, which could alter the behavior of the circuit being tested.

Can a voltmeter measure current?
Not directly. To measure current, use an ammeter or calculate it using Ohm’s Law.

Can a voltmeter test a battery?
Yes, it can check a battery’s voltage to help assess its charge level.

What happens if a voltmeter is connected in series?
Its high resistance can block current flow and disrupt the circuit.

What does it mean if a voltmeter reads near zero?
This may suggest a short circuit, a disconnection, or no voltage present in the section being measured.

What’s the difference between analog and digital voltmeters?
Analog voltmeters display readings with a needle on a scale, while digital ones show precise numerical values and tend to be more accurate.

Can a voltmeter measure AC and DC voltage?
Yes, most modern voltmeters can measure both. Just be sure to select the appropriate setting for AC or DC.

🔌Diagram

Dual Voltage Meter Wiring Diagram Overview

Here’s your installation diagram for a dual voltage monitoring gauge. It shows how to connect two 12V batteries to a dual-display voltmeter, including labeled wires, terminals, and mounting details.

Single Meter Dual Display Volt Meter

 

 

🚚 Shipping Details

  • Carrier & Coverage We ship all orders via USPS First Class or Priority Mail, with insurance coverage up to $100 included for most packages.
  • Processing Time Orders typically ship within 1 to 3 business days and include tracking. If our warehouse anticipates any delay, we’ll notify you promptly before your order is dispatched.
  • Same-Day Shipping Goal We aim to ship your order on the same day it’s placed, excluding weekends and federally recognized holidays.
  • Orders placed after 2:30 PM Pacific Time will be shipped the next business day.

Weekend & Holiday Notice

Please note: No shipments are processed on weekends or U.S. federal holidays. Shipping Cost Enjoy free shipping on all our products—no hidden fees, no surprises.

Additional information

Weight N/A
Location

USA, CANADA