Measuring Instruments

Make sure to monitor your ph, temperature, and ppm's to keep your plants healthy and achieve optimum growing conditions.


Hannah Combo

The Phep 4 and Combo are waterproof pH and temperature meter. The housing has been completely sealed against humidity and designed to float. All pH readings are automatically temperature compensated (ATC), and temperature values can be displayed in Celcius and F units. With replacable electrode and water temperature.

Hannah Champ

Champ is a rugged pH meter with single point calibration and a battery life of over 1 year even if used for 1 hour everyday. The new design features a larger LCD so measurments are easier to read from any angle. Champ comes with a protective cap that can be used to hold storage solution or as a meaurement vessel. The electrode itself is replaceable by the user and has a non-clogging fiber junction which makes it last much longer. The Champ can be used for Research, Science, Laboratory, Education, Aquariums, Hydroponics, Pools and more.

PH Test Kits

Hanna's line of chemical test kits covers the pH range in the scales between pH 3 and 10. The colorimetric pH kits are also available with an additional reagent against chlorine interference.

Calibration, Cleaning and Maintenance

The electrode maintenance kit has all the elements for perfect electrode calibration, storage and maintenance. A storage bottle, a cleaning solution for protein deposits on glass, a cleaning solution for inorganic deposits in reference junctions, a storage solution with storage bottle, reference electrolyte and two of each pH buffer capsule are all included in this compact package. Individual solutions can also be bought separately.

Hannah Tri-Meter

Hanna Tri Meter Combo is a pH, TDS ( reads in PPM), EC and temperature meter. The Tri Meter can be wall mounted to provide continuous readings. It features 3 large, dual-level, back lit LCD display for easy readings. This combo from Hanna is designed for high accuracy pH, EC/TDS and temperature measurements. No more switching meters to measure the pH and then the EC or TDS of a solution. Calibration and temperature compensation is automatic. The combo has a replaceable pH probe. This item comes with a 1 year manufacturer's warranty against defects in material and/or workmanship.

Hannah Constant-Combo

Hannah Combo series meters from HANNA® are designed for continuous, high accuracy pH, EC/TDS and temperature measurements. These microprocessor indicators continuously monitor the three most important nutrient parameters in hydroponics, greenhouses and horticultural applications with a single instrument. These indicators feature a large, dual-level, backlit LCD to give you instantaneous readings of pH, EC or TDS and temperature, even from a distance.

At startup, these indicators perform a self-check to assure proper working condition. HI 991404 and HI 991405 stability indicator and hold features prompt the user when to take the reading and freezes the display for easy and accurate recording.

Bluelab Truncheons





It is essential when growing with a hydroponic solution to KNOW what the strength of the solution is before feeding your plants AND while they are growing. This is easy if you use the Bluelab Truncheon. The world's favourite nutrient meter! With its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LED's and no on/off buttons to worry about, the Bluelab Truncheon® Nutrient Meter has proven itself as the world's favourite nutrient meter.

Assorted Items


Scalpels are extremly useful when taking cutting and clones or trimming stems, leaves and branches.

Fiskers Gardening Shears

Fiskers gardening shears. Stop by most any flower shop, and you'll see a well-used (and well-loved) pair of these shears lying within quick reach. Pros swear by them for cutting tough stems, delicate blooms, ribbon and lightweight wire-and so will you. Several models specifically made for your delicate pruning needs.

Rubber Gloves

Rubber gloves can protect your plants from dirty hands. Bacteria and germs make their way from your hands, to your crops, sometimes with disatrous results. Rubber gloves are also great to keep hands clean during all facets of gardening from propagation to harvest!


Greenfield stocks many books to help you get your green thumb developing. From begineer guides to expert solutions, we have the literature you need to grow your gardens.

Store Hours

Monday - Friday: 10am-5pm

 Saturday: 10am-2pm

Sunday: Closed

Please Note: We can also schedule after-hours appoinments. Please call well in advance to check availablity.


(902) 897-GROW (4769)
24 Havelock St.
Truro, Nova Scotia