Sensors Circuit Board
Hot tub circuit boards are the brain of your spa's control system. Our selection includes replacement boards compatible with Balboa, Gecko, Hydro-Quip, and other major control systems. A failed circuit board often causes erratic behavior, error codes, or complete spa shutdown. We offer competitive international shipping rates to buyers worldwide.
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Jacuzzi Spa Hot Tub Heater M7 Sensor Replacement Temp & Hi Limit 31"
HTPOFAmerica
MSRP: $94.99$79.99This part is a Standard Balboa Heater M7 Sensor with a 31" wire found in Jacuzzi Premium J series 2016 to current. Application Balboa Water Group Sensor Diameter 1/4" Wire Length 31" ...MSRP: $94.99$79.99 -
Waterway NEO 2100 Hi Limit Sensor for 10kW ETS Spa Control - 2 Pin Connector
HTPOFAmerica
MSRP: $34.99$24.99High-limit temperature sensor designed for Waterway NEO 2100 ETS spa control systems.CategorySpa ControlSensor TypeHi LimitApplicationWaterwayModelETSConnector Type2 pinMSRP: $34.99$24.99 -
Waterway NEO 2100 ETS Temperature Sensor - 10kW Spa Control
HTPOFAmerica
MSRP: $49.99$39.99Electronic Thermal Sensing (ETS) Temperature Sensor designed for Waterway NEO 2100 spa control systems.Utilizing dual ETS sensor technology comparable to Balboa's M7 system, the NEO 2100 employs two Electronic Thermal Sensing units for accurate water...MSRP: $49.99$39.99 -
Balboa Gray Thru-Wall Temperature Sensor Mount 3/8" Bulb with Rubber Grommet - Universal Spa Thermowell
HTPOFAmerica
MSRP: $41.99$36.99Universal GRAY Temperature Sensor Thermowell Mount by Balboa designed for 3/8" sensor bulbs. Compatible with temperature sensors from Balboa, Gecko, Hydro Quip, and other manufacturers. Features rubber grommet on back nut for secure installation...MSRP: $41.99$36.99 -
ACC SmartTouch Dual Temperature & Hi-Limit Sensor - 1/4" Bulb, 2-pin Double Connector
HTPOFAmerica
MSRP: $159.99$129.99This dual-function Temperature and Hi-Limit Sensor is engineered for ACC SmartTouch spa control systems. The sensor features a 1/4" diameter sensing bulb and comes equipped with two separate 2-pin connector terminals for dual monitoring capabilities...MSRP: $159.99$129.99 -
ACC Temperature Hi-Limit Sensor 20" Cable 1/4" Bulb 2-Pin Connector
HTPOFAmerica
MSRP: $89.99$59.99This dual-function Temperature and Hi-Limit Sensor is designed for ACC spa control systems. It features a 20" cable length with a 1/4" diameter sensing bulb and utilizes a 2-pin connector for easy installation.Compatible with ACC Smartouch and Epack...MSRP: $89.99$59.99 -
Watkins Sensor Adapter Kit - New to Old Style Conversion - IQ2000 No-Fault Heaters 1995-2002
HTPOFAmerica
MSRP: $39.99$29.99Conversion adapter kit designed to connect new-style sensor sets with older IQ2000 control systems on Watkins No-Fault 4000 and 6000 heaters.This adapter solution bridges the gap between updated sensor technology and legacy control boards, allowing you...MSRP: $39.99$29.99 -
96" Hi Limit Sensor Box End - Sundance Jacuzzi J-Series 400 600 600-S 750 800 850 880
HTPOFAmerica
MSRP: $89.99$72.99This high-temperature limit sensor features a 96 inch wire length with box-style terminal connectors, designed for reliable spa safety monitoring.Compatible with select Jacuzzi Premium Hot Tubs and the following Sundance spa systems: 1992 Suncoast...MSRP: $89.99$72.99 -
22" Box End Hi Limit Sensor for Sundance & Jacuzzi 400/600/750/800/850/880 Series Spas
HTPOFAmerica
MSRP: $108.99$85.99This replacement component is a 22" hi limit temperature sensor featuring box-style terminal connectors designed for precise thermal protection in your spa system.Compatible with select Jacuzzi Premium Hot Tub models and the following Sundance systems:...MSRP: $108.99$85.99 -
Cal Spa M7 Foam Temperature Sensor for 7000/9000 Heater - Hi Limit Replacement 12 Inch
HTPOFAmerica
MSRP: $94.99$64.99This genuine replacement foam-style temperature sensor for Cal Spa M7 heater systems fits 7000 and 9000 series hot tubs. The assembly includes the sensor element, attached wiring, and connector pre-installed. Please note: mounting tube, side bracket, and...MSRP: $94.99$64.99 -
Sundance & Jacuzzi High Limit Switch 22" Small Bulb Box Connector for 400/600/750/95+ Bypass Heaters
HTPOFAmerica
MSRP: $108.99$85.99This high temperature limit switch is designed specifically for Sundance and Jacuzzi spa models featuring the compact bulb design. Compatible with 400, 600, 600-S, 750, and 95+ series equipped with Bypass Heater systems. The 22-inch capillary tube length...MSRP: $108.99$85.99 -
Watkins No-Fault Heater Sensor Kit - Hi-Limit & Temperature w/ O-Rings - 2002+ Hotspring Caldera
HTPOFAmerica
MSRP: $109.99$79.99Complete replacement sensor assembly designed for Watkins No-Fault 4000 and 6000 heating systems.Kit Contents: Hi-Limit Safety Sensor, Temperature Monitoring Sensor, plus (2) rubber O-Ring seals featuring updated connector design for 2002 and newer...MSRP: $109.99$79.99