Remote Temperature Sensor

REMOTE TEMPERATURE SENSOR

Morningstar’s Remote Temperature Sensor (RTS) provides improved battery charging in solar systems that

experience temperature variations during the year. The RTS measures temperature at the battery and the

controller uses this data for very accurate temperature compensation. Use of the RTS is recommended

whenever the temperature at the battery will be more than 5°C (9°F) different than the temperature at the

controller. The TriStar has no on-board temperature compensation; therefore the use of the RTS is required for

temperature compensated charging. Other Morningstar controllers will default to an on-board temperature

sensor if a RTS is not connected.

The RTS is compatible with the following Morningstar controllers:

• ProStar™ (soldering required)

• TriStar™

• SunKeeper™

• SunSaver Duo™

• SunSaver MPPT™

• TriStar MPPT™

For maximum protection from harsh environments, the sensor is encapsulated in epoxy inside

a power lug housing. The RTS is also protected from lightning surges and short circuits.

Standard

Features:

• Highly accurate: +/- 1.5°C (2.7°F)

• Cable length: 10 meters (33 feet)

• User may easily extend cable length up to 30 meters (100 feet) using standard cable

• Corrects for temperatures from -30°C (-22°F) to +80°C (+176°F)

• Wires are non-polarized

Specifications:

• Power lug housing: 9.5 mm (3/8”) screw hole

• 2-conductor copper cable with PVC jacket, 0.34mm² (#22 AWG)

• Cable rated UL CMR

• UL recognized component when used with TriStar

• CE certified for use with all compatible Morningstar controllers

• Sensor noise is filtered

WARRANTY: Five year warranty period. Contact Morningstar or your authorized distributor for complete terms.

www.morningstarcorp.com

Printed in USA 05/11/2015.EN