Hot Tub Sensors

Digital and mechanical sensors and parts for all major brand hot tubs.

All orders over $34.99 ship free in the US

Displaying 1 to 30 (of 38 products)
Balboa 50' Hi-Limit Sensor

Balboa 50' Hi-Limit Sensor

Balboa Hi-Limit Sensor with 1/4" Bulb Length: 50'

$120.06



Balboa 96" Sensor Assembly

Balboa 96" Sensor Assembly

Balboa Temperature and Hi-Limit Sensor Assembly Dimensions: 1-1/2" Bulb Length, 1/4" Diameter (Hi-Limit) 2" Bulb Length, 3/8"...

$66.46



Balboa Hi-Limit and Temperature Sensor Assembly

Balboa Hi-Limit and Temperature Sensor Assembly

Balboa Hi-Limit and Temperature Sensor Assembly   Dimensions: 1-1/2" Bulb Length, 1/4" Diameter (Hi-Limit) 2" Bulb Length,...

$150.00



Balboa ORP Sensor

Balboa ORP Sensor

Balboa ORP Sensor, to be used with Balboa pH/ORP Sensor Kit model 54129

$339.94



Balboa pH/ORP Sensor Kit

Balboa pH/ORP Sensor Kit

pH/ORP Sensor Kit for Balboa M2, M3, and M7 EL systems   Kit does NOT include ORP Sensor 30315

$301.66



Balboa Tape-on Sensor

Balboa Tape-on Sensor

Balboa Hi-Limit and Temperature Tape-on Sensor Sensor tapes directly onto heater manifold

$48.00



Flow Switch Grid Control M-1

Flow Switch Grid Control M-1

Manufacturer: Grid Controls Flow Switch Application: Dimension One Model: M-1 Plumbing Connection Size: 1-1/2" Plumbing...

$149.95



Flow Switch Grid Control M-225

Flow Switch Grid Control M-225

Manufacturer: Grid Controls Flow Switch Application: Cal-Spas Model: M-225 Plumbing Connection Size: 2" Plumbing Connection...

$189.95



Flow Switch Marquis 850-9039

Flow Switch Marquis 850-9039

Q-12DS50 Flow switch used on Marquis spas.   3/4" slip tee with 1/2 threaded flow switch

$115.96



Flow Switch Universal

Flow Switch Universal

  This common flow switch is Identical to and replaces:  HRWQ12DS1   Q12DS1.54SNO1   Q12DS501.54SNO1   608073 ...

$69.95



Flow Switch Watkins 34875

Flow Switch Watkins 34875

Watkins Hot Springs Flow Switch

$66.18



Hi Limit Mechanical

Hi Limit Mechanical

 This mechanical Hi Limit sensor is commonly used in air switch controls to re-set the heater. Available in: 275-2662-00 12" Capillary...

$39.95

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Hi Limit Surface Mount

Hi Limit Surface Mount

The surface-mounted Hi Limit is commonly used on 5x5 Plate-Style Heaters.

$39.95

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Hydro-Quip Hi-Limit Sensor

Hydro-Quip Hi-Limit Sensor

18" HydroQuip - Gecko two pin style high limit sensor.

$41.02



Hydro-Quip Hi-Limit Sensor (Old Style)

Hydro-Quip Hi-Limit Sensor (Old Style)

     Hydro-Quip Hi-Limit Sensor (Old Style) 4 Pin connector with blind 4th position.  

$50.22



Hydro-Quip Temperature Sensor

Hydro-Quip Temperature Sensor

Temperature Sensor with 5/16" diameter bulb

$39.62



Hydro-Quip Temperature Sensor (Old Style)

Hydro-Quip Temperature Sensor (Old Style)

Hydro-Quip Temp Sensor (Old Style) 3/8" bulb with 10' cord Blocked off number 4 pin

$83.22



Jacuzzi Current Model Sensors

Jacuzzi Current Model Sensors

Temperature and Hi Limit Sensors for current model Jacuzzi J-300 Series Spas Built from 2002 to 2016. 6600-167 Temp Sensor with box end connector for...

$27.00

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Jacuzzi Flow Switch for J-300 Systems

Jacuzzi Flow Switch for J-300 Systems

Jacuzzi Flow Switches used in J-300 Series Hot Tubs from 2002+ Which Switch Do I Need  J-300 Series LCD models (All models with 10 button LCD...

$48.32

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Len Gordon Pressure Switch

Len Gordon Pressure Switch

  There are three common versions of this pressure switch that are often used in Balboa control boxes: 800120-3 25A SPDT 1/8" NPT...

$19.95

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Pressure Switch DTec 510ADO167

Pressure Switch DTec 510ADO167

Dtec-1 has a smaller foot print, is universal and easy to install, shares same set point with other models and can be used to replace them. 

$39.95



Pressure Switch Tridelta Tecmark 3903

Pressure Switch Tridelta Tecmark 3903

Manufacturer: Tridelta/Tecmark 3903 Switch Type: Pressure Pressure Switch Rating: 1 to 5 psi Pressure Switch Amperage: 1A...

$29.95



Pressure Switch Tridelta Tecmark 4010P

Pressure Switch Tridelta Tecmark 4010P

Manufacturer: Tridelta/Tecmark 4010P Switch Type: Pressure Pressure Switch Rating: 1 to 5 psi Pressure Switch Amperage: 25A...

$29.95



Pressure Switch Tridelta Tecmark 4015P

Pressure Switch Tridelta Tecmark 4015P

Manufacturer: Tridelta/Tecmark 4015P Switch Type: Pressure Pressure Switch Rating: 1 to 5 psi Pressure Switch Amperage: 25A...

$32.95



Sensor Balboa Hi Limit M7 53605

Sensor Balboa Hi Limit M7 53605

Sensor Application: Spa Control Sensor Type: Temp or Hi Limit Application: Balboa Water Group Model: M7 53605 Connector...

$49.95



Sensor Caldera Hi Limit 72492

Sensor Caldera Hi Limit 72492

Hi limit thermistor for advent control systems found on Caldera spas from 2002 to current. 2 pin connector 1/4" bulb.

$34.50



Sensor Caldera Thermostat 72493

Sensor Caldera Thermostat 72493

Hi limit thermistor for advent control systems found on Caldera spas from 2002 to current. 2 pin connector 1/4" bulb

$34.50



Sensor Watkins Hi Limit 38416 Old Style

Sensor Watkins Hi Limit 38416 Old Style

High limit thermistor ("Limit Therm") used on Hot Spring and Tiger River spas from 1995 - 2002.  Connects to the outside of the...

$34.50



Sensor Watkins Thermostat 38415 Old Style

Sensor Watkins Thermostat 38415 Old Style

Control thermistor ("Reg Therm") used on Hot Spring and Tiger River spas from 1995 - 2002.  Connects to the outside of the control box.

$34.50



Displaying 1 to 30 (of 38 products)