Environmental Controls

ph Meters / CD Meters

These CF / TDS and pH meters are extremely robust and of a high calibre and come highly recommended. The conductivity (CF / TDS) meters and pH meters are used in testing the strength of nutrient solutions.

These high quality instruments are designed to withstand the rigours of any growing environment. Both meters feature automatic on / off and automatic temperature control and is accurate to + / - 0.1. These meters require no calibration, come with battery and have a two year guarantee.

New Zealand EC/CF/TDS Professional Truncheon	Code: E7	£90	BUY
New Zealand pH Professional Wand	Code: E8	£150	BUY
Min Max Thermometer (Analogue Dial)	Code: E9	£10	BUY
Humidity Dial Hydrometer (Analogue Dial)	Code: E10	£10	BUY

NutraWand CF Truncheon

There are several meters available on the market. The meters listed have been specially selected because of their reliability. When using NFT, Flood And Drain and Rockwool slab culture, growers can control and manage the pH and strength (conductivity or CF/TDS) of the nutrients and ensure fast growth rates and greater yields.

Fully waterproof meters shown above, well worth the extra initial outlay.

Meters are tested at the shop at time of purchase, and come with a 90 day warranty. pH meters should last from six months to a year.

Pocket type meter. Accurate to +/- 0.2pH. These are very reliable pocket type meters. All pH meters, including the ETI pH meter are delicate and should be handled with care.

Fully Water Proof pH Meter	Code: E47	£65	BUY
Fully Water Proof CF Meter	Code: E48	£65	BUY

ETI/TI EC/EC/CF/TDS Meter	Code: E1	£55	BUY
ET/TI pH Meter	Code: E2	£55	BUY

On line monitoring system that uses a probe in your tank for constant reading. The unit is temperature compensated. Accuracy of +/- 2% at room temperature (25°C). The LED flashes when the pH or CF/TDS/EC is not within acceptable parameters. Less calibration is required compared to standard meters, as the probe is constantly submerged during use.

Hanna Growth Check EC/CF/TDS constant reading meter	Code: E5	£85	BUY
Hanna Growth CheckpHconstant reading meter	Code: E6	£85	BUY

Environmental Units

Vapourtek neutralises strong odours. However, it doesn't replace carbon filters in a growing environment, but can be useful in dealing with odours from adjoining rooms. The Silver Bullet Ozone Generator encourages plant growth. It also discourages insects but primarily dissolves odours. This is a tried and tested safe domestic appliance.

Vapourtek air purifier / neutraliser, two speed, round unit	Code: E13	£95	BUY
Vapourtek air purifier / neutraliser cartridge pack of two	Code: E14	£35	BUY
Vapourtek optimum 4000 air purifier / neutraliser, 10 speed, cuboid unit	Code: E15	£225	BUY
Vapourtek air purifier / neutraliser replacement cartridge	Code: E16	£65	BUY
Ozone Generator [ Click for More Info ]	Code: E41	£225	BUY

AirMaid Variable Ozone Generator

Features 5 levels of strength for ozone output and 5 options for preset timed release doses of ozone.

- Ozone Output: 100mg/hr
- Treats areas up to 150m³

AirMaid Variable Ozone Generator

Code: E105

£375

BUY

See our fully equipped and stocked shop and warehouse, as well as our basement and upstairs demonstration grow rooms, fully operating equipment and systems on show. We will be happy to talk you through the systems and equipment. Got any questions - we can answer them.

Call us now and speak directly to our fully trained staff 01483 596484.

Uvonair Ozone Generators

Ultraviolet light produces a steady fog of ozone with an extra oxygen molecule attached. Ozone has the interesting characteristics of latching on to any airborne organic particles, such as bacteria, smells, and fungal diseases, and destroys them by oxidisation.

Uvonair 1000 Room Generator (up to 28m³)	Code: E106	£200	BUY
Uvonair 3000 Room Generator (up to 56m³)	Code: E107	£225	BUY
Uvonair 5000 Room Generator (up to 84m³)	Code: E108	£250	BUY

Uvonair's Inline Ozone Generators install directly into ducting to eliminate odours. The exhaust duct versions are far more powerful than the in room models, with "Corona Discharge" models capable of cleaning the air from even the biggest extraction fans. Exhaust ozone generators produce far less resistance to the airflow compared to carbon filters.

8" CD-800 Exhaust Duct Generator (up to 600m³)	Code: E109	£450	BUY
10" CD-1000 1 CELL Exhaust Duct Generator (up to 600m³)	Code: E110	£500	BUY
10" CD-1000 2 CELL Exhaust Duct Generator (up to 1200m³)	Code: E111	£600	BUY
12" CD-1200 Exhaust Duct Generator (up to 3000m³)	Code: E112	£700	BUY

See our fully equipped and stocked shop and warehouse, as well as our basement and upstairs demonstration grow rooms, fully operating equipment and systems on show. We will be happy to talk you through the systems and equipment. Got any questions - we can answer them.

Call us now and speak directly to our fully trained staff 01483 596484.

Ona Odour Neutraliser

Ona Gel polar crystal is an odour neutralising agent that controls naturally. This complex formula uses essential oil technology to destroy a wide spectrum of organic and non-organic odours. Ona is not a masking agent, it neutralises odours.

Ona odour counteractant is scientifically engineered to be completely non toxic and environmentally safe. It has proven to effectively neutralise virtually any odour permanently. Ona does not merely mask odours but bonds with the offending molecules rendering them odourless. Ona's active ingredients are a blend of 32 essential oils and plant derived compounds, native to Australia and Asia. Effective even in low concentrations of 500:1, these components enable Ona to neutralise a wide spectrum of odours. A safe and biodegradable product designed for use in any environment. Simply get a container of gel and remove the lid (or poke holes in the lid) and place in the room to be deodorised. The Ona Spray is a manual spray, while the aerosol can be used with a Time Mist Dispenser for automated odour control.

The Ona Breeze provides odour neutralisation to a room up to 1500 square feet (15000 cubic feet) or 166 square meters (500 cubic meters) for 3-6 weeks. This period will vary based on the ambient temperature and humidity levels of the room, and the airflow setting of the Ona Breeze. The Ona Breeze is designed to be used with Ona products. Simply plug in and switch to "high" or "low" to start airflow. The airflow control switch is located at the front of the Ona Breeze. The maximum airflow is 45 cubic feet per minute (CFM).

Call us now and speak directly to our fully trained staff 01483 596484.

Cool and Warm Mist Humidifier (table top)

Cool and Warm Mist Humidifier. Automatic humidity control. Transparent water tank: 7 l. Easy maintenance. Alarm for water refilling& tank cleaning.

- Suitable for rooms up to 50 sq. m
- Cool and Warm Mist Humidifier
- Automatic humidity control
- Transparent water tank: 7 l
- Easy maintenance
- Alarm for water refilling& tank cleaning
- Spray control function
- Digital display
- Vibration prevention mechanism
- Safety lock
- Max spray: Cool mist : 400 cc/hr
- Warm mist : 550 cc/hr
- Air flow: 430 ml / hr
- Power: Cool mist 40W; Warm Mist: 140W
- Voltage: 220-240 V / 50 Hz

Cool and Warm Mist Humidifier

Code: E62

£195

BUY

Water And Air Pumps

Air pumps aerate your system and enable faster growth. Esoteric Hydroponics offer air and water pumps that are silent and reliable.

Maxi Jet Water Pump 250 (MJ250)	Code: E28	£20	BUY
Maxi Jet Water Pump 500 (MJ500)	Code: E29	£25	BUY
Maxi Jet Water Pump 1000 (MJ1000)	Code: E30	£35	BUY
Ceramic Air Stone	Code: E31	£5	BUY
Rena Air Pump 100	Code: E32	£25	BUY
Rena Air Pump 200	Code: E33	£35	BUY
Rena Air Pump 400	Code: E34	£55	BUY
Heavy Duty Pump suitable for high pressure dripper systems	Code: E44	£95	BUY

Hailea Super Silent Metal Air Pumps

Hailea Super Silent Metal Air Pump v20 20 litres/min	Code: E64	£60	BUY
Hailea Super Silent Metal Air Pump v40 40 litres/min	Code: E65	£70	BUY
Hailea Super Silent Metal Air Pump v60 60 litres/min	Code: E66	£90	BUY

Jun Super Silent Metal Air Pumps

Jun Super Silent Metal Air Pump 30 litres/min	Code: E67	£70	BUY
Jun Super Silent Metal Air Pump 60 litres/min	Code: E68	£90	BUY

Heavy Duty Air Compressors

They don’t come any more powerful than this! Supercharge your system with these and your plants will be very pleased with you in more ways than one :)

25W Heavy Duty Air Compressor	Code: E69	£50	BUY
30W Heavy Duty Air Compressor	Code: E70	£60	BUY
48W Heavy Duty Air Compressor	Code: E71	£70	BUY
70W Heavy Duty Air Compressor	Code: E72	£85	BUY
160W Heavy Duty Air Compressor	Code: E73	£100	BUY
300W Heavy Duty Air Compressor	Code: E74	£125	BUY
450W Heavy Duty Air Compressor	Code: E75	£140	BUY

Ario Aerator

Ario Aerator 1 50 litre Capacity	Code: E80	£25	BUY
Ario Aerator 2 100 litre Capacity	Code: E81	£30	BUY
Ario Aerator 3 150 litre Capacity	Code: E82	£35	BUY
Ario Aerator 4 300 litre Capacity	Code: E83	£40	BUY

Oxydator

Oxydator Small (not pictured)	Code: E84	£35	BUY
Oxydator Large (pictured)	Code: E85	£65	BUY

Round Ring Air Stones



Diffuses air over a greater surface area with these as used in our Super Charged Turbo Aerator systems.

2 x Round Ring Air Stone 3”	Code: E86	£5	BUY
3 x Round Ring Air Stone 4”	Code: E87	£10	BUY
1 x Round Ring Air Stone 5”	Code: E88	£5	BUY

Silicone Air Line Pipe

For joining the air pumps to the air stones.

Silicone Air Line Pipe 5 metres	Code: E89	£5	BUY
Silicone Air Line Pipe 100 metres	Code: E90	£50	BUY

Dripper System Components

High pressure drippers x 5	Code: E45	£10	BUY
High pressure drip hosing, 2m	Code: E46	£5	BUY
High pressure feed hosing, 5m	Code: E45A	£10	BUY

Water Heaters

Standard Water Heater

Code: E35

£25

BUY

Indestructible Water Heater

Indestructible Water Heater

Code: E49

£65

BUY

200W Titanium Deluxe Thermostatically Controlled Water Heater	Code: E77	£75	BUY
300W Titanium Deluxe Thermostatically Controlled Water Heater	Code: E78	£85	BUY
500W Titanium Deluxe Thermostatically Controlled Water Heater	Code: E79	£95	BUY

Osmosis

In some parts of the UK, water quality is poor so it can be difficult to obtain optimum results expected from hydroponics. Reverse Osmosis (RO) is the answer. This is a water purifier which removes all unwanted residues and particles from your water, thereby giving the grower better quality water. These need to be ordered in advance so the exact model best suited to the type of water in the grower's area is supplied. However, chances are that most growers won't require one. If you are in any way unsure, please contact us, so that we can advise and order a unit for you.

Reverse osmosis & saddle clamp

Code: E18

£295

BUY

MicroPonic Systems

This instrument automatically measures the CF/TDS/EC of the nutrient reservoir and will automatically add the correct amount of nutrient as and when it is required, thereby ensuring that the nutrient level is always at an optimum level for plant uptake.

MicroPonic automatic food doser	Code: E12	£350	BUY
MicroPonic automatic food & pH doser	Code: EE12	£950	BUY

Vecton UV Steriliser - Destroys Pythium

Vecton UV Steriliser 8 Watt (Treats 200 Litre Tank)	Code: E58	£125	BUY
Vecton UV Steriliser 15 Watt (Treats 400 Litre Tank)	Code: E59	£145	BUY
UV Balance 1 Litre	Code: E60	£10	BUY

The lamps in these units should be changed every 5-7 months. Full instructions included.

Ozoniser Water Steriliser

Standard Ozoniser Water Steriliser	Code: E94	£100	BUY
Commercial Ozoniser Water Steriliser	Code: E95	£350	BUY

Water Chillers

300 Water Chiller	Code: E92	£500	BUY
500 Water Chiller	Code: E93	£600	BUY

Timers And Relays

One of the most common and serious problems experienced by growers is hydroponic lighting timer failures. Household timers purchased from major manufacturers are simply not designed to handle the (inductive) power loads of hydroponic lighting. Contactor relays are the answer. You can still use the standard timer, but power is routed through the contactor relay and not the timer. Alternatively, we also offer relays that have built-in timers. Timers will switch on your contactor and lights as and when required.

They are simple to use, as well as being very reliable. There's no wiring, just plug it in. Each contactor can handle up to 3 x 400W, 2 x 600W or 1 x 1000W lights. Four gang heavy duty timer contactors are also available which will switch up to 4 x 400W, 4 x 600W or 2 x 1000W lights.

Octopus 6KW Relay and Timer

Code: E61

£165

BUY

Relay and Timer, rated at 6KW

Code: E23

£165

BUY

The Ecotechnics 3KW relay is a powerful little number. This unit will look after up to 4 x 600W lights. Never ever had one back with a fault. Inexpensive contactor relay solution for your lighting needs (timer not included).

Ecotechins 3KW Power Controller (needs timer)

Code: E21

£80

BUY

Oil Filled Radiators

These thermostatically controlled radiators gently heat your grow room without the worry of stripping the environment of humidity or for that matter adding humidity. Will not dry out the plants or the atmosphere unlike fan or convection heaters currently available.

2kw - 9 radiator panel and 2.5kw - 11 radiator panel versions available with adjustable thermostat, 3 heat settings, power indicator, 24 hour timer built-in, castors, carry handle and overheat safety cut-out.

2kw Oil Filled Radiator	Code: E96	£70	BUY
2.5kw Oil Filled Radiator	Code: E97	£90	BUY

See our fully equipped and stocked shop and warehouse, as well as our basement and upstairs demonstration grow rooms, fully operating equipment and systems on show. We will be happy to talk you through the systems and equipment. Got any questions - we can answer them.

Call us now and speak directly to our fully trained staff 01483 596484.

Infra Red Thermometer

This outrageous product measure the surface temperature of anything you point it at. This gizmo will tell you the temperatures of the differing parts of you grow room i.e. the canopy of your plants, the roots and even the water temperature allowing fine tuning of your room like never before.

Infra Red Thermometer

Code: E50

£55

BUY

Digital Min Max Thermometer / Hygrometer

Digital Min Max Thermometer / Hygrometer And Water Temperature Probe With Clock

Code: E11

£45

BUY

Autonomous Environmental Control Systems - Fan Controllers

Autonomous Environmental Control Systems - Fan Controllers

The Sunbeam fan controller switches fans on when the room is too hot and switches fans off when the room is too cold. Intended for use with a simpler inlet or extraction fan. Temperature is set with the single rotary dial.

The Prima Controller - combined fan speed controller and thermostat which controls exhaust and intake fans. This can be wired to fans, program your requirements and it will do the rest. The Prima Controller has three analogue dials:

- one dial sets the best temperature for the controller to maintain
- one dial sets the minimum air flow for the inlet fan
- one dial sets the minimum air flow for the outlet fan

This ensures continuous air flow, regardless of temperature differences. Further information is available from the Data Sheet.

Prima Fan Controller - controls inlet and outlet fans, has variable pitch control and thermostat overide to control temp. of your grow room

Code: E36

£150

BUY

Ecotechnics Temperature Control Unit

Ecotechnics Temperature Control Unit

Code: E63

£250

BUY

Fan Speed Dimmer Controllers

Small max of 2.5 amp load	Code: E113	£95	BUY
Large max of 6.0 amp load	Code: E114	£115	BUY

See our fully equipped and stocked shop and warehouse, as well as our basement and upstairs demonstration grow rooms, fully operating equipment and systems on show. We will be happy to talk you through the systems and equipment. Got any questions - we can answer them.

Call us now and speak directly to our fully trained staff 01483 596484.

Harvest-Master 'Climate' Controller

Harvest Master Climate Controller	Code: E51	£745	BUY
Harvest Master Pro Climate Controller	Code: E52	£1245	BUY
Harvest Master ProPlus Climate Controller	Code: E53	£1545	BUY
Harvest Master CO2 Sensor upgrade for controllers	Code: E54	£595	BUY
Harvest Master GSM Modem (for ProPlus model only)	Code: E55	£595	BUY
Spare Harvest Master 240V 10 Amp Relay for controllers	Code: E56	£95	BUY
Spare Harvest Master 3 Phase 32 Amp Relay for controllers	Code: E57	£395	BUY

I grow plants, bigger, faster and healthier for you to harvest and enjoy! I come with scientist developed factory settings, for optimum growth conditions, for any plants, I look after the basics 24/7, so you don't have to and, do it all automatically. Click here for lots more info and a larger view

Combined Environmental Controllers

An all in one environmental controller. It features a thermostatic fan controller, a humidistat fan controller, a thermostatic heat controller and a CO2 monitor and injector. In short, you can control CO2, inlet and extraction fans, and heaters.

Seibo Combined Digital Environmental Controller

Code: E42

£475

BUY

The shiva controller is the ultimate in growing environment control and provides the indoor gardener with an easy to use and complete atmospheric solution by combining extraction and precise CO2 dosing. This is controlled by an infra-red monitor which is easy to install and operate. It even has a computer interface which enables the grower to customise and record environmental activity, and even be controlled via the Internet. This system requires bottled CO2 (not supplied). To find out more, please visit for a full demonstration. An information sheet is available.

Shiva Atmospheric Controller - comes with Telaire CO2 monitor	Code: E38	£1499	BUY
Telaire CO2 PPM Infra Red Monitor	Code: E40	£900	BUY