Product: RTS accessory for MPPT charge controller Overview A dedicated remote temperature sensor designed for MPPT charge controllers with an RTS input. The sensor supplies real time battery temperature data so the controller can adjust charging parameters accordingly. This accessory helps the MPPT unit respond to temperature changes for more consistent charging performance. Key benefits Temperature compensation: Provides the controller with accurate battery temperature readings so charging voltage can be adjusted for prevailing conditions. Better charging accuracy: Helps reduce undercharging or overcharging caused by temperature variations, supporting more consistent charging behavior. Simple installation: Plug and play compatibility with controllers that support RTS input, allowing quick addition without rewiring the battery system. Durable and compact: Designed for installation near the battery bank with a compact probe and insulated cable suitable for typical solar and mobile installations. Cost effective upgrade: Adds temperature sensing capability to MPPT controllers that do not include an internal sensor or need a remote sensor location. Function and performance Function: Measures battery temperature and sends the signal to the MPPT charge controller for temperature compensation of charging setpoints. Performance: Delivers continuous temperature readings to enable the controller to adjust charge voltage as temperatures rise or fall, improving charging consistency across conditions. Connection: Uses the RTS input interface present on compatible MPPT controllers for direct connection and signal transmission. Compatibility Compatible with MPPT charge controllers that provide an RTS or remote temperature sensor input. Intended as an accessory for charge controller models specifying RTS support in their documentation. Check controller specifications to confirm RTS input compatibility before installation. Physical attributes Probe and cable design: Compact probe intended for mounting close to the battery terminals and an insulated cable for routing to the controller. Materials: Constructed for routine battery environment use with an enclosed sensing element and protective probe housing. Connector: Fits the RTS input connector type required by compatible controllers. Confirm connector type in controller documentation before . Typical applications Off grid battery banks: Place the sensor on the battery bank to allow the MPPT controller to compensate for seasonal temperature changes in outdoor battery shelters. Recreational vehicles and boats: Install the sensor next to the onboard battery to compensate for temperature differences between interior compartments and ambient conditions. Remote solar installations: Use the sensor where batteries are installed in an enclosure or below deck and experience different temperatures than ambient air, ensuring the controller uses actual battery temperature for charging decisions. Installation and use notes Mount the probe in good thermal contact with a battery cell or battery terminal area for accurate sensing. Route the cable to the controller without sharp bends or exposure to heat sources. Verify that the controller is configured to accept an external RTS sensor and that any software settings or firmware options are enabled. What it solves Eliminates reliance on ambient temperature sensors when battery temperature differs from surrounding air. Reduces risk of inaccurate charging setpoints due to thermal differences between batteries and controller location. Provides a simple upgrade path to improve charging accuracy and system responsiveness to temperature changes. Packaging and compatibility check Supplied as the RTS temperature sensor accessory for MPPT controllers with an RTS input. Confirm the RTS input type and wiring requirements on your controller manual to ensure compatibility. This accessory is intended for use with MPPT charge controllers that explicitly support an external RTS sensor input. It is not a standalone charger or controller.