TECO Replacement Temperature Probe for TK 1 Aquarium Chillers

The TECO temperature probe is the original sensor that tells the chiller’s thermostat how warm the water is, so the unit can switch cooling on and off at the right moment. It has a stainless steel sensing tip on a long black cable, as shown in the photo, and is made as a direct replacement for TECO TK 1 chillers. A faulty probe can cause wrong readings or erratic cooling, so replacing it restores accurate control.

Key features of the TECO Replacement Temperature Probe

• Genuine TECO spare
• Accurate water readings
• Stainless sensing tip
• Long connection cable
• Fits TECO TK 1 chillers

Ordering the correct probe

Two versions are listed: one for TECO TK 1 chillers and one that serves both the TK 2 and TK 4 models, so read the model on your chiller’s rating label and order the matching probe. To confirm the sensor is the problem before you buy, compare the chiller’s display with a separate aquarium thermometer; a large or drifting difference, or cooling that will not switch off, usually points to the probe. Keep the old one until the new probe is reading correctly.

Good to know

Switch off and unplug the chiller before fitting any spare part, check the part matches your model, and have the work done by a qualified technician if you are unsure.

TECO Replacement Temperature Probe specifications

• Brand: TECO
• Brand website: tecous.com
• Product: TECO Replacement Temperature Probe for TK 1 Aquarium Chillers
• Fits: TK 1
• Category: Fish Heating & Lighting