---
product_id: 3752221
title: "- Morningstar Remote Temperature Sensor (RTS) - Connects Battery to Charge Controller to Provide Accurate Battery Temperature Info When Battery & Controller Temperatures are Likely to Differ by >5C"
brand: "morningstar corporation"
price: "€ 72.15"
currency: EUR
in_stock: true
category: "Morningstar Corporation"
url: https://www.desertcart.be/products/3752221-morningstar-remote-temperature-sensor-rts-connects-battery-to-charge-controller
store_origin: BE
region: Belgium
---

# Universal Morningstar controller compatibility ±0.5°C precision sensor Epoxy-encapsulated rugged housing - Morningstar Remote Temperature Sensor (RTS) - Connects Battery to Charge Controller to Provide Accurate Battery Temperature Info When Battery & Controller Temperatures are Likely to Differ by >5C

**Brand:** morningstar corporation
**Price:** € 72.15
**Availability:** ✅ In Stock

## Summary

> 🌞 Charge smarter, last longer — the sensor your solar setup can’t afford to miss!

## Quick Answers

- **What is this?** - Morningstar Remote Temperature Sensor (RTS) - Connects Battery to Charge Controller to Provide Accurate Battery Temperature Info When Battery & Controller Temperatures are Likely to Differ by >5C by morningstar corporation
- **How much does it cost?** € 72.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/3752221-morningstar-remote-temperature-sensor-rts-connects-battery-to-charge-controller)

## Best For

- morningstar corporation enthusiasts

## Why This Product

- Trusted morningstar corporation brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged Durability:** Epoxy encapsulation and power lug housing protect against lightning & shorts
- • **Boost Battery Lifespan:** Accurate temp compensation prevents over/undercharging, extending battery health
- • **Trusted Industry Leader:** Backed by Morningstar’s 5-year warranty and US-based tech support
- • **Precision Temperature Sensing:** Ensures battery temp accuracy when difference >5°C for optimal charging
- • **Seamless Controller Integration:** Works flawlessly with all major Morningstar MPPT and PWM controllers

## Overview

The Morningstar Remote Temperature Sensor (RTS) delivers precise battery temperature readings with ±0.5°C accuracy, enabling advanced temperature compensation for solar charge controllers. Its epoxy-encapsulated metal housing ensures rugged protection against harsh environments, lightning surges, and short circuits. Compatible with all major Morningstar controllers, the RTS optimizes battery charging when battery and controller temps differ by more than 5°C, enhancing battery lifespan and system reliability. Supported by a 5-year warranty and trusted Morningstar tech support, it’s a must-have for professional-grade solar power management.

## Description

Buy Morningstar Remote Temperature Sensor (RTS) - Connects Battery to Charge Controller to Provide Accurate Battery Temperature Info When Battery & Controller Temperatures are Likely to Differ by >5C: Coolant Temperature - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- REMOTE TEMPERATURE SENSOR: Morningstar's Remote Temperature Sensor (RTS) provides improved battery charging in solar systems that experience temperature variations during the year. It measures temperature at the battery and the controller uses this data for very accurate temperature compensation.
- HIGH ACCURACY: This sensor is essential when the battery temperature differs by more than 5°C (9°F) from the controller, ensuring accurate temperature compensation for improved battery charging. Provides precise temperature readings maintaining reliable performance across a wide temperature range.
- DURABLE & PROTECTION: For defense against harsh environments, the sensor is securely encapsulated in epoxy within a robust power lug housing. This durable construction protects against lightning surges and short circuits for long-lasting performance and reliability in the most challenging conditions.
- CONTROLLER COMPATIBILITY: The RTS is compatible with various Morningstar models including SunSaver MPPT, TriStar MPPT, SunKeeper, SunSaver Duo, and ProStar. The TriStar has no on-board temperature compensation thus requiring the use of the RTS. Other Morningstar controllers will default to an on-board temperature sensor if a RTS is not connected.
- TRUSTED RELIABILITY: Morningstar Corporation is a US company established in 1993 and is a global leader in manufacturing PWM and MPPT solar charge controllers, inverters, and accessories. Renowned for the industry's lowest hardware failure rate, Morningstar provides dependable, innovative technology for advanced solar applications. Morningstar products include U.S. based Tech Support and are the top choice for mission-critical users.
- The RTS is compatible with SunSaver MPPT, SunSaver Duo, SunKeeper, and all ProStar and Tristar controller models
- The RTS is protected from lightning surges and short circuits.
- The sensor is encapsulated in epoxy inside a power lug housing for maximum protection from harsh environments,
- Five year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0072P8T9U |
| Best Sellers Rank | #1,171,800 in Automotive ( See Top 100 in Automotive ) #2,193 in Automotive Replacement Coolant Temperature Sensors #50,850 in Automotive Replacement Engine Cooling & Climate Control |
| Brand Name | Morningstar Corporation |
| Customer Reviews | 4.8 4.8 out of 5 stars (82) |
| Included Components | Controller |
| Item Dimensions | 5.3 x 5.7 x 2 inches |
| Item Weight | 3.2 ounces |
| Manufacturer | Morningstar Corporation |
| Material Type | Metal |
| Model | RTS |
| Part Number | RTS |
| UPC | 102309368277 |
| Unit Count | 1.0 Count |
| Warranty Description | 5 Years |

## Product Details

- **Brand:** Morningstar Corporation
- **Item Weight:** 3.2 ounces
- **Item dimensions L x W x H:** 5.3 x 5.7 x 2 inches
- **Material:** Metal
- **UPC:** 102309368277

## Images

![- Morningstar Remote Temperature Sensor (RTS) - Connects Battery to Charge Controller to Provide Accurate Battery Temperature Info When Battery & Controller Temperatures are Likely to Differ by >5C - Image 1](https://m.media-amazon.com/images/I/71B6BbYDPTL.jpg)

## Frequently Bought Together

- Morningstar Remote Temperature Sensor (RTS) - Connects Battery to Charge Controller to Provide Accurate Battery Temperature Info When Battery & Controller Temperatures are Likely to Differ by >5C
- Morningstar SunSaver 15A MPPT Solar Charge Controller SS-MPPT-15L - Solar Panel Regulator, Supports 12/24V LA/Li Batteries. Load/Lighting Ctrl, HazLoc Rated, Low Noise, 5 Yr. WTY - Designed in the USA
- Morningstar SunSaver Duo 25A PWM Solar Charge Controller (SSD-25RM) - Solar Panel Regulator for Two 12V Batteries, Adjustable Charge Settings, Includes Remote Meter, 5 Year WTY - Designed in The USA

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-06-30*