Bluelab Root Zone Moisture, Electrical Conductivity and Temperature Multi Growing Media Pulse™ Meter

Understand the root zone moisture, electrical conductivity and temperature in the root zone of your crop cultivation.
Measure moisture to better plan your irrigation cycles, be aware of water consumption rates and minimize the risk of root infections.
Assess conductivity to make sure your plants have access to the right amount of food in the form of dissolved nutrients to thrive at every stage of growth.
Spot temperature fluctuations during the growing season that influence electrical conductivity to improve root function.

The Pulse™ meter uses radio frequencies to determine pore conductivity in plant growing substrates. 
Electrical conductivity EC is a measure of total ions present in solution from dissolved inorganic nutrient salts or organic nutrient fertilizers. A larger amount of soluble essential nutrients in the solution increases EC values.
Moisture content MC conductivity is a measure of how well a growing medium can conduct electricity based on its moisture level. The higher moisture content, the greater the EC value due to the presence of more electrical charge carrying ions from dissolved essential nutrients.

The EC in any substrate will be generally lower than the EC of the nutrient solution being used as substrates tend to buffer ions. 
For accurate EC analysis a minimum of 20% volumetric moisture content in the growing substrate is required.

Product specifications:

• Measure moisture, EC/ MC conductivity and temperature directly in the root zone.
• Connect to the Bluelab Pulse app available in multiple languages to view, analyze and store all your measurement data.
• Robust 8''/ 200 mm long format stainless steel probes to provide deeper insight of your medium.
• A built in depth gauge that clips to act as a hard stop on the probe with lines etched every 50mm or 2'' guides measurements at consistent depths.
• Automatic Temperature Compensation.
• Units: Conductivity - EC, Moisture Content - % moisture by volume, Temperature - °C, °F.
• Operating environment, minimum pot size: 2 Litre/ 0.5 Gallon.
• Conductivity measurement range: 0 to 15 EC.
• easurement range: 5% to 70% MC vol (mixed media and coir).
• Temperature measurement range: 5°C to 40°C / 40°F to 104 °F.
• easurement accuracy: 0.0 to 5.0 EC ± 0.2 EC, 5.0 to 15.0 EC ± 8% - measured in KCl solution at 20°C/ 68°F in a 270mm high, 10 litre/ 2.6 gallon container.
• measurement accuracy: ± 5% MC vol - measured in coir, bark, peat and pumice mixed media that the Pulse™ meter was calibrated to at 20°C in a 150 mm diameter x 250 mm high vessel.
• easurement accuracy: ± 1 °C or ± 2 °F.
• Single step optional calibration available for moisture content to water holding capacity.
• Probe Length: 200mm/ 8". 
• Probe Separation: 50mm/ 2".
• Active Tip Length: 50mm/ 2".
• Works in nutrient solution, heavy potting media, soil, coco coir, bark, peat, pumice and other plant growing substrates.
• Powered by 1 AAA alkaline battery.
• Works with Android and iOS with Bluetooth 4.0+.
• Made in New Zealand for growers.

*Does not work in media with large voids like perlite or that can be permanently distorted like rock wool.

How to take your first measurement with the Pulse™ meter:

1. Download and connect the Bluelab Pulse app.
2. Select your growing medium from the list.
3. Choose your healthiest plant to measure first to set a benchmark or set a target range with your nutrient solution.
4. Insert the Pulse Meter probes into the substrate a minimum of 75mm/ 3” and at least 25mm/ 1” away from the side and base of the container.
5. Press the Measure button on the device or in the app to get your first reading.