Back to top

Sensors & Probes

Flow and Temperature Sensors to fit various Spa Packs on your Hot Tub or Spa.

Use the main filters below to narrow down your search.

Applied Filters

Extended 1 Year Warranty

In addition to the manufacturers standard warranty (usually 1 year) we also offer the opportunity for you to extend this warranty by a further 1 year for a one off fee. This can be arranged at the point of purchase or within a limited time afterwards.
An extended warranty is an easy way to protect your purchase, against any manufacturing defects causing breakdown. You will benefit from free repairs for the term of the warranty period & If your equipment can't be repaired then we will replace it free of charge.(A delivery surcharge may apply for non UK mainland addresses)
This warranty and the standard manufacturer’s warranty does not cover general wear and tear, abuse or misuse or incorrect installation.
If you would like any further information on our extended warranty scheme please call our Hydrospares team on 01326 371 488 OR email us at info@hydrospares.co.uk

Astrel EasyMini Plus Spa Pack - Hi-Limit Sensor
PG Connector
  • Hi-Limit Sensor
  • PG Connector
  • For the EasyMini or
  • EasyMini Plus Spa Packs.
Astrel
Astrel / Modo
Hi-Limit
For Easymini & Easymini Plus
PG Connector
£27.99
QF: 5941
2 in stock 15:00 Cut off Same day dispatch on orders before 15:00
5941
Astrel EasyMini Plus Spa Pack -Temperature Sensor
PG Connector
  • Temperature Sensor
  • PG Connector
  • For the Easy Mini or
  • Easy Mini Plus Spa Packs.
Astrel
Astrel / Modo
Temp Sensor
For Easymini & Easymini Plus
PG Connector
£42.99
QF: 5940
1 in stock 15:00 Cut off Same day dispatch on orders before 15:00
5940
Balboa M7 Sensor - Long (60cm/24")
M7/GL Spa Packs
  • Balboa M7 Sensor
  • 60cm Cable
Balboa Water Group
Balboa
24" Cable
Includes Nut & Washer
Replacement Part
£28.99
QF: SEN-0288
RRP: £32.21
1 in stock 15:00 Cut off Same day dispatch on orders before 15:00
SEN-0288

Find out more
Balboa M7 Sensor Retaining Nut
Found on Heater Tube
  • OEM
  • For M7 Sensors
  • Replacement
Balboa Water Group
Balboa
For M7 Sensors
OEM
Replacement Part
£8.20
QF: 3842
RRP: £9.12
7 in stock 15:00 Cut off Same day dispatch on orders before 15:00
3842

Find out more
Balboa Temperature & Hi-limit Sensors
Pre M7 Spa Packs
  • Balboa
  • Hi-Limit & Temp
  • Pre-M7
  • Used By Many Brands
Balboa Water Group
Balboa
Pre M7 System
Temp & High Limit
Pressure Switch systems
£27.62
QF: SEN-0287
RRP: £29.08
6 in stock 15:00 Cut off Same day dispatch on orders before 15:00
SEN-0287
Gecko Hi Limit Sensor - M-Class JST
For MSPA Control Systems
  • Gecko 
  • Hi Limit Sensor
  • Suitable for M-Class JST
  • MSPA control systems.
Gecko
Gecko
Hi-Limit Sensor
MSPA control systems
Replacement Part
£29.49
QF: 5485
RRP: £36.50
5 in stock 15:00 Cut off Same day dispatch on orders before 15:00
5485
Gecko Hi Limit Sensor - S-Class JST
For S-Class Systems
  • Gecko 
  • Hi Limit Sensor
  • Suitable for S-Class JST
  • For S-Class Control Systems.
Gecko
Gecko
Hi-Limit Sensor
For S-Class Systems
Replacement Part
£28.99
QF: 5484
RRP: £36.15
4 in stock 15:00 Cut off Same day dispatch on orders before 15:00
5484
Gecko Hi Limit Sensor / Probe
For use with SSPA / MSPA-MP Control Packs
  • Gecko
  • Hi-Limit
  • For S-Class
  • Replaces Various Probes
Gecko
Gecko
High Limit Sensor / Probe
For S-Class Spa Packs
Replaces Various Probes
£35.89
QF: 7846
RRP: £53.95
1 in stock 15:00 Cut off Same day dispatch on orders before 15:00
7846
Gecko Temperature Sensor
For S-Class (SSPA-1 and SSPA-2) and MSPA-MP Control Systems.
  •  Gecko 
  • Temperature Sensor
  • 2 Wire
  • 4 Pin Connector
Gecko
Gecko
4 Pin Connector
For S-Class & MSPA-MP Control Systems.
Replacement Part
£51.99
QF: 6023
RRP: £63.04
5 in stock 15:00 Cut off Same day dispatch on orders before 15:00
6023
HydroAir Thermosensor
3/8" OD Stainless Steel Well

 

  • HydroAir Thermosensor
  • 3/8" OD Stainless Steel Well
  • Ingress Prot. Front: IPx8
  • Ingress Frot. Back: IPx5
Balboa Water Group
Available while stock lasts
£49.99
QF: 1170
RRP: £68.54
1 in stock 15:00 Cut off Same day dispatch on orders before 15:00
1170
HydroAir Water Level sensor
5v JST style snap-on connector
  • HydroAir Water Level Sensor
  • 5v JST
  • Style snap-on connector
  • Fits Classic line boxes
HydroAir
£36.25
QF: SEN-1656
RRP: £38.16
3 in stock 15:00 Cut off Same day dispatch on orders before 15:00
SEN-1656
HydroAir Water Level Sensor
12v - 25-0211-12
  • HydroAir Water Level Sensor
  • 12v - 25-0211-12
  • Fits classic line variable boxes
HydroAir
12V
Adjustable Sensitivity
Now Grey with Plug
3-10mm Wall Thickness
£36.23
QF: SEN-1655
RRP: £38.13
8 in stock 15:00 Cut off Same day dispatch on orders before 15:00
SEN-1655
 
COMPARISON BASKET
COMPARE