You have no items in your shopping cart.
0item(s)
You have no items in your shopping cart.
Conductivity Meter electrodes invariably become coated with inorganic or organic impurities. This causes a loss of accuracy. Conductivity (cF, mS) or TDS measurements are used to gauge the total concentration...
$9.95
Conductivity Meter electrodes invariably become coated with inorganic or organic impurities. This causes a loss of accuracy. Conductivity (cF, mS) or TDS measurements are used to gauge the total concentration of all salts (i.e. both beneficial and toxic) present in the nutrient solution. They cannot provide any detail on the concentrations of individual nutrients. Therefore, since a ‘satisfactory’ reading does not imply a balanced nutrient mixture (or provide information on the level of nuisance salts), it is wise to dump every 7-14 days. This is particularly necessary when using salty make-up water because such water causes nuisance chemicals to build up rapidly to toxic levels.
- For Calibration of Conductivity (EC) and TDS Meters
- Calibrates to 2.76mS/cm or cF 27.6 at 25oC (77oF)
- Contains Potassium Chloride
- Based on international (APHA) standard formula
Bestseller Products
Kind K5 Series LED Grow Lights (XL750-XL1000)
$1,769.99
$2,099.99
Unit Farm: UFO Cree Series LED Grow Lights (80-320)
From $409.99
Mars II Series LED Grow Lights (400-1600)
From $285.99
Mars Hydro Pro II EPISTAR Series (80-320)
From $243.99
Kind K3 Series LED Grow Lights (300W-600W)
From $889.99
Also Purchased
Grow Daddy 300W Full Spectrum LED
The Grow Daddy 300W LED Grow Light is a portable, full-spectrum light that offers two colour controls to provide ideal lighting for both seeding and blooming stages. With revolutionary heat dissipation...
$269.99
Kind K5 Series LED Grow Lights (XL750-XL1000)
Manufacturer's Description: Kind LED Grow Lights has created the World’s Best Indoor LED Grow Light The K5 Series is comprised of the perfect mix of 3 & 5 Watt Light Emitting Diodes. Each of...
$2,099.99
$1,769.99
Unit Farm: UFO Cree Series LED Grow Lights (80-320)
The Unit Farm UFO LED grow lights incorporate high-output Cree™ and Osram™ LEDs for ultimate reliability, intensity, and efficiency. The Unit Farm series features Veg and Flower modes to help you save energy during...
From $409.99
Mars II Series LED Grow Lights (400-1600)
Mars II 400 LED grow light Coverage: 2.5'x2.5' (76cmx76cm) Max Yield: 1.8g/watt PPFD: 752 Replace HID/MH: 250W Draw Power:110V/170W±5% / 220V/165W±5% Mars II 700 LED grow light Coverage: 3'x3' (92cm x 92 cm) Max Yield: 1.8g/watt...
From $285.99
Mars Hydro Pro II EPISTAR Series (80-320)
Mars Hydro has more than 7 years experience in Grow Tents and LED Grow Lights Incredible powerful. Full spectrum, high quality but with an affordable price makes it the best choice...
From $243.99
Kind K3 Series LED Grow Lights (300W-600W)
This revolutionary series of LED grow lights will produce the biggest and best yields, while consuming approximately half the electricity and producing virtually no heat. Your Kind LED Grow Light will...
From $889.99
Mars Reflector Series LED Grow Lights (48-192)
The Mars Reflector Series offers powerful LED-based units featuring custom spectrum diffusers to maximize energy efficiency and coverage area. The compact design, cool operating temperatures and extra-large coverage area makes...
From $136.99
Unit Farm UFO LITE LED 200-600
UFO Lite LED grow light The New UFO Lite Series employs the growing popularity of chips - Epistar LEDs. Epistar sits firmly as the premier global supplier today, especially its...
From $229.99
Spectrum King 600W LED Industrial Grow Light (120°)
650 Watt Full Spectrum LED Grow Light made in the USA. Replaces 1000W-1200W Dual-Ended Bulbs (both MH HPS). Can be used for both vegetative and flower growth. Currently the world’s...
$2,000.00
$1,899.99
ZELION HL300 LED Grow White
The ZELION HL300 Grow White is a 100 to 600 watt fully dimmable and spectra tunable LED light fixture designed for horticulture applications in collaboration with growers needing special lighting...
$1,866.00
Lightspeed Flip 16 Lighting Controller
LIGHTSPEED FLIP 16 Lighting Controller Automated 8 ballast, 16 light switching unit Allows you to run 16 lights from 8 ballasts Works with ballasts plugged into any voltage Heavy duty,...
$858.95
Mars-Hydro Pro II CREE Series (128-256)
The MarsPro II Cree LED Grow Light is smarter and more powerful than anything Mars Hydro has ever created before. Mars Pro II Cree LED Grow Light with veg and...
From $555.99
