Sensors Circuit Board

Caldera Hi-Limit sensor used on the Advent control systems from 2002 - current. This sensor is found mounted to your heater and detects high heat conditions to protect the heater from running dry or flow restrictions.  Found in Caldera, Utopia,...

OEM Caldera temperature sensor with 3/8" bulb. This sensor is normally found mounted into a sensor well and makes direct contact with the spa water. On the other end it plugs into the circuit board via the 4 pin, 2 wire JST plug. Found in Caldera,...

This part is a Balboa Heater M7 Sensor with a 46" wire found in some HydroQuip Systems using Balboa Boards.  Sensor Application    Spa ControlSensor Type    Hi Limit, Temp or Hi Limit,...

This part is a Heater M7 Sensor with a 31" wire found in Jacuzzi Premium J series 2016 to current.  Note: This sensor does not have the nut and washer on it so it will only work with Jacuzzi Premium hot tubs..   Application Balboa...

This part is a 96" Hi Limit Sensor with the box style connectors.. This sensor is used with Some Jacuzzi Premium Hot Tubs and the following Sundance systems: 1992 Suncoast, 1996-98 Suntub, 1997-2005 400, 600, 600-S, 750, 800, 1997 850, and 2005+ 880...

This part is a 22" Hi Limit Sensor with the box style connectors.. This sensor is used with Some Jacuzzi Premium Hot Tubs and the following Sundance systems: 1992 Suncoast, 1996-98 Suntub, 1997-2005 400, 600, 600-S, 750, 800, 1997 850, and 2005+ 880...

You are buying a Cal Spa 7000 or 9000 Heater M7 foam type Sensor. This Sensor comes with the wire, Connector, and The foam sensor. It DOES NOT include the tube, the tube side mount or the pull ties. When this sensor is bad it will generally cause a SN...

This part is a Sundance or Jacuzzi Hi Limit with the smaller bulb for 400, 600, 600-S, 750, 95+ with Bypass Heater... LED Hi Limit Sensor for Jacuzzi Hot Tub models J-235, J-245, J-275, and J-280. Fits all Jacuzzi J-200 Series Hot Tubs from 2011 to...

This part is a Direct replacement sensor kit for Watkins No-Fault 4000 or 6000 heater.Includes: Temperature Sensor, Hi-Limit Sensor, and (2) Two rubber O-Rings with newer Style Connectors 2002+.  Sensor Application Spa Control Sensor...

Temperature&Hi Limit Sensor

This part s no longer available and there are not replacements for it.. Sensor, Temp, Brett Aqualine, WTS020, 20', w/Clamp