Aquarium Meters & Controllers

5,984 results

Reef Factory KH Keeper Plus Aquarium Alkalinity Tester
Brand new
£363.72
(£363.72/Unit)
or Best Offer
£12.47 P&P
Probe Tube Holder Hose, OHP, PH, Temperature - Aquarium Reef Marine
Brand new
£12.16 to £16.84
Free postage
Click & Collect
$Handheld Refractometer for Marine Aquarium Fish Tank Salinity Testing Salt Meter - Image 1 of 1$
Handheld Refractometer for Marine Aquarium Fish Tank Salinity Testing Salt Meter
Brand new
£19.99
Free postage
Click & Collect
337 sold
Hanna HI97105 Marine Master Multiparameter Photometer kit (meter only)
Pre-owned
£125.52
or Best Offer
£3.42 P&P
0 bids
3d 10h
Digital LCD Thermometer Aquarium Fish Tank Vivarium Water UK Seller
Brand new
(110)
£3.69
Free postage
4,410 sold
GHL Powerbar 6E- PAB
Pre-owned
£104.72
£5.15 P&P
(Seneye Reef ) Aquarium Reef Factory PH PROB KH KEEPER PLUS PH METER
Pre-owned
£40.00
£3.45 P&P
Click & Collect
STICK ON DIGITAL THERMOMETER ADHESIVE AQUARIUM FISH TANK WINDOW WATER STRIP *UK
Brand new · Unbranded
£2.28 to £9.95
Free postage
1,130 sold
Aquarium Fish Tank Temperature Thermometers Digital & Analogue Stick On °C & °F
Brand new
£1.99 to £6.49
Free postage
833 sold
Superfish Aquarium Thermometer Tropical Fish Tank Temperature Easy to Use
Brand new · Superfish
(15)
£3.45
Free postage
1,113 sold
LCD DIGITAL THERMOMETER FOR FISH TANK WATER, FRIDGE FREEZER TEMPERATURE, 2 Meter
Brand new
£3.95
Free postage
238 sold
FLUVAL EDGE THERMOMETER EXTERNAL STICK ON DIGITAL AQUARIUM FISH TANK
Brand new · Fluval
(40)
£3.45
Free postage
2,780 sold
FLUVAL 2-in-1 DIGITAL THERMOMETER MEASURES WATER & ROOM TEMPERATURE AQUARIUM
Brand new · Fluval
(63)
£10.99
Free postage
Click & Collect
628 sold
Neptune Apex Trident Mini 3D Printed Casing
Brand new
£50.00
Free postage
Click & Collect
Solar LCD Digital Thermometer for Fish Tank Tropical Marine Aquarium
Brand new
£12.99
Free postage
Click & Collect
49 sold
Aquarium Digital Thermometer LED Fish Tank Temperature Gauge Wireless UK
Brand new · Unbranded
£6.53
Free postage
Digital LCD Thermometer Aquarium Fish Tank Vivarium Water UK Seller
Brand new · Unbranded
£3.36
Free postage
303 sold
1/2/4PCS Digital Aquarium Fish Tank Thermometer Temperature Freezer Water Gauge
Brand new
£4.21 to £13.91
(£13.91/Unit)
Free postage
104 sold
Aquarium Grounding Probe, Titanium Ground Probe, ESD, electro static discharge
Brand new · Unbranded
£24.00
Free postage
Click & Collect
Marina Aquarium Thermometers Fish Tank Tropical Marine Temperature Checking
Brand new
(4)
£3.29 to £3.75
Free postage
267 sold
Digital Water Aquarium Thermometer LCD Fish Tank Electronic Reptile Gauge Meter
Brand new · Unbranded
£4.71
(£4.71/Unit)
Free postage
Fluval Digital Thermometer Submersible Aquarium Tropical Stick-On Suction Cup
Brand new · Fluval
(16)
£9.85
Free postage
Click & Collect
255 sold
Oase Aquarium Digital Thermometer Temperature Gauge Easy LCD Display Fish Tank
Brand new · Oase
(48)
£9.75
Free postage
Click & Collect
1,004 sold
Waterproof Aquarium Thermometer LCD Digital Submersible Fish Tank Thermometer
Brand new · Unbranded
£3.95
or Best Offer
Free postage
137 sold
Temperature Sensor Aquarium Gauge Touch Screen Fish Tank Digital Thermometer
Brand new · Unbranded
£5.79
Free postage
Click & Collect
Fish Tank Tropical Aquarium Thermometer Floating Tempered Glass Sucker Easy Read
Brand new
£3.29
Free postage
138 sold
3 x LCD Thermometer Adhesive Sticker Temperature Gauge Aquarium Window Fish Tank
Brand new · Unbranded
£3.49
Free postage
1,494 sold
Reef Factory Dosing Pump Pro X4 Marie Reef Doser Corals Fish Tank
Pre-owned
£160.00
£3.45 P&P
Click & Collect
Jebao Marine Aquarium Auto Dosing Pump DP-2 /3 /4 Coral Reef Trace Element Doser
Brand new · Jebao
(2)
£64.49
Free postage
Click & Collect
Neptune Apex DOS Mounting Bracket 3D Printed Marine Tank Accessory
Brand new
£16.50
Free postage
Click & Collect
Aquarium Fish Tank Gauge Touch Screen Digital Thermometer Temperature Sensor UK
Brand new · Unbranded
£1.19 to £8.98
Free postage
Twin Display External Thermometer Digital Thermometer For Aquarium Vivarium
Brand new
£8.99
Free postage
Click & Collect
AQUARIUM LCD DIGITAL STICK ON THERMOMETER FISH TANK ADHESIVE WINDOW WATER STRIP
Brand new
(13)
£3.45
Free postage
1,162 sold
Thermometer Adhesive Sticker Black LCD Flat Strip Window Fish Tank Aquarium
Brand new
£2.15 to £11.95
Free postage
51 sold
ITC PARwise PAR Light Meter Get Perfect Growth Rates Wavelength Aquarium Fish
Brand new · ITC Reefculture
£219.95
Free postage
Click & Collect
Only 3 left
LCD AQUARIUM THERMOMETER FOR FISH TANK WATER FRIDGE FREEZER TEMPERATURE
Brand new
£3.29
Free postage
564 sold
4X DIGITAL AQUARIUM REPTILE VIVARIUM THERMOMETER WITH PROBE FREEZER UK SELLER
Brand new
£10.45
Free postage
Click & Collect
279 sold
Juwel Digital Thermometer 3.0 Easy Read Fresh/Marine Temp Aquarium Fish Tank
Brand new · Juwel
(2)
£22.45
Free postage
Click & Collect
104 sold
Ista Hang On Glass Thermometer Aquarium Fish Tank Temperature - Very Accurate
Brand new
£4.99 to £5.49
Free postage
123 sold
Ista LCD Digital Aquarium Thermometer Submersible Temperature Thermometer
Brand new
£5.99
Free postage
Click & Collect
124 sold
Reuben Heaton Fishing Standard Casting Water Thermometer + Case
Brand new
(7)
£25.19
Free postage
Click & Collect
431 sold
DIGITAL AQUARIUM REPTILE VIVARIUM THERMOMETER WITH PROBE FREEZER UK SELLER
Brand new
£4.54
Free postage
2,253 sold
Aquarium Thermometer Glass Precise Fish Tank Temperature Submersible BT-02
Brand new · Unbranded
(19)
£2.49
Free postage
105 sold
Aquarium Fish Tank Gauge Touch Screen Digital Thermometer Temperature Sensor
Brand new · Unbranded
£5.99
Free postage
BETTA GLASS THERMOMETER SIMPLE ACCURATE CELCIUS FARENHEIT AQUARIUM FISH TANK
Brand new · Betta
(46)
£3.99
Free postage
1,847 sold
Digital Aquarium Thermometer LCD Fish Tank Marine Terrarium Reptile Frog Gauge
Brand new · Unbranded
£3.36
Free postage
68 sold
Tunze 3152 Nano Osmolator
Pre-owned
£47.52
or Best Offer
£3.45 P&P
Click & Collect
Aquarium stick on thermometer, Aquarium Temperature gauge
Brand new · Unbranded
£2.28
Free postage
Digital LCD Thermometer Aquarium Fish Tank Vivarium Water UK Seller
Brand new · Unbranded
£3.31
Free postage
51 sold
LCD Digital Thermometer Aquarium Fish Tank Vivarium Water Marine Probe UK Seller
Brand new · Unbranded
£3.45
Free postage
Ciano Digital Thermometer Aquarium Fish Tank Temperature Gauge
Brand new
(1)
£13.26
Free postage
Click & Collect
Neptune Systems Probe Calibration Kit
Brand new
£13.95
Free postage
Click & Collect
Only 3 left
seneye Reef + Seneye Web Server + Replacement Slides
Pre-owned · seneye
(2)
£219.12
or Best Offer
£4.26 P&P
Digital Aquarium Temperature Gauge Fish Tank Thermometer-9.9℃~99.9℃ UK SELLER
Brand new · Unbranded
£4.79
Free postage
485 sold
TRIXES Digital LCD Thermometer NEW Fish Tank Aquarium Vivarium Marine Water
Brand new
(17)
£5.99
or Best Offer
Free postage
Click & Collect
897 sold
AQUARIUM DIGITAL THERMOMETER LCD, FISH TANK, CELSIUS FAHRENHEIT REEF MARINE POND
Brand new · Unbranded
£7.49
Free postage
Click & Collect
64 sold
Ista Mini Glass Thermometer Submersible Temperature Meter Nano Tank Aquarium
Brand new
£4.29
Free postage
121 sold
AQUARIUM LCD DIGITAL THERMOMETER AQUARIUM, LARGE, TEMPERATURE, FISH TANK UK
Brand new · Unbranded
£10.99
Free postage
Click & Collect
Only 2 left
Aquarium Thermometer Digital Fish Tank Thermometer Wireless Accurate Temperature
Brand new · Unbranded
£8.42 to £8.48
£3.59 P&P
Aquarium Thermometer Digital Fish Tank Thermometer Wireless Accurate Temperature
Brand new · Unbranded
£7.70 to £7.76
(£7.74/Unit)
£3.59 P&P

Top-rated

See all

2x LCD Digital Thermometer Aquarium Fish Tank Vivarium Marine Probe UK SELLER
(110)

96% agree - Would recommend
£3.69 New
ETI Ltd Aquarium Thermometer With Max/min and Temperature Alarm - Displays Tank
(20)

83% agree - Would recommend
£17.92 New
Digiflex Digital LCD Fish Aquarium Marine Vivarium Thermometer UK
(17)

87% agree - Would recommend
£1.99 New
Fluval 11193 2 in 1 Digital Aquarium Thermometer - Black
(63)

89% agree - Would recommend
£10.99 New
Oase Digital Aquarium Thermometer - Grey (43957)
(48)

92% agree - Would recommend
£9.75 New
Betta RJ020 Glass Thermometer
(46)

86% agree - Would recommend
£3.99 New
Hagen Fluval Edge Digital Aquarium Thermometer #11206
(40)

88% agree - Would recommend
£3.45 New
Bermuda Floating Pond Thermometer - BER1051
(29)

100% agree - Would recommend
£8.45 New

Type

Measured/Controlled Parameter

Aquarium Meters & Controllers

Shop by category

5,984 results

Reef Factory KH Keeper Plus Aquarium Alkalinity Tester

Probe Tube Holder Hose, OHP, PH, Temperature - Aquarium Reef Marine

Handheld Refractometer for Marine Aquarium Fish Tank Salinity Testing Salt Meter

Hanna HI97105 Marine Master Multiparameter Photometer kit (meter only)

Digital LCD Thermometer Aquarium Fish Tank Vivarium Water UK Seller

GHL Powerbar 6E- PAB

(Seneye Reef ) Aquarium Reef Factory PH PROB KH KEEPER PLUS PH METER

STICK ON DIGITAL THERMOMETER ADHESIVE AQUARIUM FISH TANK WINDOW WATER STRIP *UK

Aquarium Fish Tank Temperature Thermometers Digital & Analogue Stick On °C & °F

Superfish Aquarium Thermometer Tropical Fish Tank Temperature Easy to Use

LCD DIGITAL THERMOMETER FOR FISH TANK WATER, FRIDGE FREEZER TEMPERATURE, 2 Meter

FLUVAL EDGE THERMOMETER EXTERNAL STICK ON DIGITAL AQUARIUM FISH TANK

FLUVAL 2-in-1 DIGITAL THERMOMETER MEASURES WATER & ROOM TEMPERATURE AQUARIUM

Neptune Apex Trident Mini 3D Printed Casing

Solar LCD Digital Thermometer for Fish Tank Tropical Marine Aquarium

Aquarium Digital Thermometer LED Fish Tank Temperature Gauge Wireless UK

Digital LCD Thermometer Aquarium Fish Tank Vivarium Water UK Seller

1/2/4PCS Digital Aquarium Fish Tank Thermometer Temperature Freezer Water Gauge

Aquarium Grounding Probe, Titanium Ground Probe, ESD, electro static discharge

Marina Aquarium Thermometers Fish Tank Tropical Marine Temperature Checking

Digital Water Aquarium Thermometer LCD Fish Tank Electronic Reptile Gauge Meter

Fluval Digital Thermometer Submersible Aquarium Tropical Stick-On Suction Cup

Oase Aquarium Digital Thermometer Temperature Gauge Easy LCD Display Fish Tank

Waterproof Aquarium Thermometer LCD Digital Submersible Fish Tank Thermometer

Temperature Sensor Aquarium Gauge Touch Screen Fish Tank Digital Thermometer

Fish Tank Tropical Aquarium Thermometer Floating Tempered Glass Sucker Easy Read

3 x LCD Thermometer Adhesive Sticker Temperature Gauge Aquarium Window Fish Tank

Reef Factory Dosing Pump Pro X4 Marie Reef Doser Corals Fish Tank

Jebao Marine Aquarium Auto Dosing Pump DP-2 /3 /4 Coral Reef Trace Element Doser

Neptune Apex DOS Mounting Bracket 3D Printed Marine Tank Accessory

Aquarium Fish Tank Gauge Touch Screen Digital Thermometer Temperature Sensor UK

Twin Display External Thermometer Digital Thermometer For Aquarium Vivarium

AQUARIUM LCD DIGITAL STICK ON THERMOMETER FISH TANK ADHESIVE WINDOW WATER STRIP

Thermometer Adhesive Sticker Black LCD Flat Strip Window Fish Tank Aquarium

ITC PARwise PAR Light Meter Get Perfect Growth Rates Wavelength Aquarium Fish

LCD AQUARIUM THERMOMETER FOR FISH TANK WATER FRIDGE FREEZER TEMPERATURE

4X DIGITAL AQUARIUM REPTILE VIVARIUM THERMOMETER WITH PROBE FREEZER UK SELLER

Juwel Digital Thermometer 3.0 Easy Read Fresh/Marine Temp Aquarium Fish Tank

Ista Hang On Glass Thermometer Aquarium Fish Tank Temperature - Very Accurate

Ista LCD Digital Aquarium Thermometer Submersible Temperature Thermometer

Reuben Heaton Fishing Standard Casting Water Thermometer + Case

DIGITAL AQUARIUM REPTILE VIVARIUM THERMOMETER WITH PROBE FREEZER UK SELLER

Aquarium Thermometer Glass Precise Fish Tank Temperature Submersible BT-02

Aquarium Fish Tank Gauge Touch Screen Digital Thermometer Temperature Sensor

BETTA GLASS THERMOMETER SIMPLE ACCURATE CELCIUS FARENHEIT AQUARIUM FISH TANK

Digital Aquarium Thermometer LCD Fish Tank Marine Terrarium Reptile Frog Gauge

Tunze 3152 Nano Osmolator

Aquarium stick on thermometer, Aquarium Temperature gauge

Digital LCD Thermometer Aquarium Fish Tank Vivarium Water UK Seller

LCD Digital Thermometer Aquarium Fish Tank Vivarium Water Marine Probe UK Seller

Ciano Digital Thermometer Aquarium Fish Tank Temperature Gauge

Neptune Systems Probe Calibration Kit

seneye Reef + Seneye Web Server + Replacement Slides

Digital Aquarium Temperature Gauge Fish Tank Thermometer-9.9℃~99.9℃ UK SELLER

TRIXES Digital LCD Thermometer NEW Fish Tank Aquarium Vivarium Marine Water

AQUARIUM DIGITAL THERMOMETER LCD, FISH TANK, CELSIUS FAHRENHEIT REEF MARINE POND

Ista Mini Glass Thermometer Submersible Temperature Meter Nano Tank Aquarium

AQUARIUM LCD DIGITAL THERMOMETER AQUARIUM, LARGE, TEMPERATURE, FISH TANK UK

Aquarium Thermometer Digital Fish Tank Thermometer Wireless Accurate Temperature

Aquarium Thermometer Digital Fish Tank Thermometer Wireless Accurate Temperature

Best selling

2x LCD Digital Thermometer Aquarium Fish Tank Vivarium Marine Probe UK SELLER

Superfish Glass Aquarium Thermometer Fish Tank

ITC Reefculture PARwise Smart Submersible Quantum PAR Sensor

Fluval 11193 2 in 1 Digital Aquarium Thermometer - Black

seneye V2 SWS Web Server (non Wi-fi) Connect to Smartphone Ethernet SEN000235 UK

Ista Fish Tank Hang-On Thermometer 15cm

Fluval Celcius Digital Aquarium Thermometer With Suction Cup

Hagen Fluval Edge Digital Aquarium Thermometer #11206

Top-rated

2x LCD Digital Thermometer Aquarium Fish Tank Vivarium Marine Probe UK SELLER

ETI Ltd Aquarium Thermometer With Max/min and Temperature Alarm - Displays Tank

Digiflex Digital LCD Fish Aquarium Marine Vivarium Thermometer UK

Fluval 11193 2 in 1 Digital Aquarium Thermometer - Black

Oase Digital Aquarium Thermometer - Grey (43957)

Betta RJ020 Glass Thermometer

Hagen Fluval Edge Digital Aquarium Thermometer #11206