Sensors - Temperature, Thermostats, Flow, Pressure

Spa and hot tub sensors
Temperature sensors, hi-limit sensors, flow switches, pressure switches, water presence/detection sensors, vacuum switches, float switches and thermowells

 

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Tecmark Plastic Adjustable Presssure Switch 2 Terminals NO Contacts - Tecmark 4010p

SKU: tdi4010p

Spa heater pressure switch. 2 terminals - NO (normally open) contacts. Tecmark 4010P adjustable pressure switch 1-5 psi 25A contacts...

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Tecmark Plastic Adjustable Spa Heater Pressure Switch 3 Terminals NO/NC Contacts - 4015p

SKU: tdi4015p

Spa heater pressure switch to suit Compu-Heat spa heaters and others with 3 wires connected to the pressure switch. 3 terminals - NO/NC contacts - to suit low flow indicator light function. Tecmark 4015P a...

1 In Stock

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Tecmark plastic spa heater pressure switch

SKU: tprme-pss-3903

Tecmark 1A rated pilot duty pressure switch 1/8" NPT thread 1-5 psi adjustable SPST ...

91 In Stock

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Tecmark stainless steel spa heater pressure switch

SKU: tdi3010

21A rated pressure switch 1/8" NPT thread Adjustable 1-5 psi ...

4 In Stock

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Vacuum Switch - Pres-Air Trol VS12506E-10W 1/8"NPT

SKU: vs11106e

Vacuum switch - 1/8" NPT threaded (same as most pressure switches) - for use on spa heaters installed into the suction side of a pump, which ordinarily prevents the operation of a pressure switch (fitted to ...

4 In Stock

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Waterco Digiheat Heater FlowCheck Flow Switch / Check Valve 50mm - 200lpm

SKU: wc85531

Waterco flow switch with check valve. Flow rate setting 200 lpm For use with Waterco Digiheat heaters 50mm / 2" sockets. ...

1 In Stock

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Waterco Electric Spa Heater Water Sensor

SKU: wc460328

Suits Waterco single and 3 phase electric heaters with electronic thermostat circuit boards ...

1 In Stock

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Waterco FlowCheck Flow Switch / Check Valve 40mm - 60lpm

SKU: wc85540

Waterco flow switch with check valve. Set to operate at 60 lpm flow rate. Low voltage, pilot duty flow switch contacts for use with low voltage control systems with solar controllers, etc 40mm / 1.5" so...

2 In Stock

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Waterco Portapac MkII overtemperature sensor

SKU: wc638172

Hi limit / overtemperature sensor used in Waterco Portapac 455100E, 101E, 60E, 4555140, 141, 403, 413 ...

1 In Stock

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Waterco Portapac MkII Temperature Sensor Thermowell

SKU: wc6381620

Waterco Portapac MkII temperature sensor thermowell housing. Accomodates the MkII temp sensor with plastic overmolded rear. 30mm hole required. Suits 8mm diameter sensor probe with 12mm overmolded plastic sh...

2 In Stock

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Waterco Portapac spa heater water pressure switch

SKU: wc6367237

Waterco portapac spa pump water pressure switch Used on Waterco and Finbury Vortex spa pumps with heaters Momentary action, with reinforced diaphragm for use with water. Different to other water press...

21 In Stock

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Waterco Portapac Temperature Sensor - Mk 2

SKU: wc64130032

Waterco portapac MkII temperature sensor. It has an over-moulded pvc sleeve over the sensor and suits the newer 6381620 sensor housing assembly (post 2004) For use with post 2004 Portapac's and also wc 63816...

1 In Stock

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Waterway Temperature Sensor Housing

SKU: ww400-4387

Waterway Thermosensor with probe protector / temperature sensor housing - installs through spa shell - suits all common 3/8" spa temperature sensors used with Balboa, Gecko, Hydroquip and others. Suits sens...

44 In Stock

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Zink (Ethink) KL8800 series H220 Flow/Temperature Sensor Union Assembly

SKU: ETH220FL

Zink KL8800 series and KL8-3A series heater flow / temperature sensor union assembly For use with H220 heaters only 1.5" / 40mm plumbing 1.5" / 40mm pipe glues into one end, with the other threaded to...

11 In Stock

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Zink (Ethink) KL8800 series H3800 Flow/Temperature Sensor Union Assembly

SKU: ETH380FL

Zink KL8800 series and KL8-3A series heater flow / temperature sensor union assembly For use with H380 heaters only 2" / 50mm plumbing 2" / 50mm pipe glues into one end, with the other threaded to the...

29 In Stock

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