Green Earth Co.    Melbourne, Florida
Categories
Greenhouse and Hydroponic Supplies Wholesale
and Retail
& Supplements          
Grow Lights
Greenhouse
Supplies  Growing
Accessories &
Beneficial Insects
Growing Media
Hydroponic
Greenhouse Supplies
Pest & Disease Control
pH/EC/TDS Meters  
Pots / Containers
Propagation                
Pumps/Irrigation
Seeds                      
Sprayers and Wands
Trays/Reservoirs/
Grow Systems
SPECIALIZING  IN  COMPLETE  GREENHOUSE  Information, Supplies,  New Products,  Start up kits,  Building Plans  and  Free  help  with  selling  your  crops  for  retail  and wholesale greenhouse  growers.
Adjustable brightness display.
Large easy to read, Plant Safe green
LED displays.
Selectable values for conductivity and
temperature.
Simple push button pH calibration system.
No calibration required for conductivity
and temperature.
Silent alarm for both high and low settings.
(non-volatile memory).
Temperature compensation.
An international power supply.
Water resistant design.
2 year warranty (6 months on probe).
Product # 716336 BLUELAB GUARDIAN
MONITOR MSRP: $345.00
716445 PH REPLACEMENT
ELECTRODE BLUE MSRP: $81.95
Measures pH, Nutrient and
Temperature
or F)
Three calibration points, 4, 7 and 10
pH
Temperature at a push of a button
Simple push button pH calibration
Auto turn off function
Large 13mm (1/2) digital display for
easy reading
Supplied with quality probes and pH
calibration solutions
Low battery indicator
Long life 3 AAA batteries
5 year Bluelab Guarantee                    
(6 mo for pH probe)
Product # 716441 COMBO
METER/BLUELAB MSRP: $299.95
716445 PH REPLACEMENT
ELECTRODE BLUE MSRP: $81.95
Hanna Combo Tester With Low Range EC
The HI 98129 Combo waterproof tester offer high
accuracy pH, EC/TDS and temperature measurements in
a single tester! No more switching between meters for
your routine measurements. The waterproof Combo (it
even floats) has a large easy-to-read, dual-level LCD
replaceable pH electrode cartridge with an extendable
cloth junction as well as an EC/TDS graphite electrode
that resists contamination by salts and other substances.
This gives these meters a greatly extended life. Your
tester no longer needs to be thrown away when the pH
The EC/TDS conversion factor is user selectable as is
the temperature compensation coefficient (ß). Fast,
efficient, accurate and portable, the Combo pH, EC/TDS
and temperature tester brings you all the features you've
asked for and more!
Hanna 1500PPM & 1413 Product #  716820 HANNA
WTRPRF PH/EC/TDS/TEMP MSRP: $191.95 716831
HANNA REP PH PROBE      MSRP: $54.95
Hanna Grochek Combo Monitor Model HI 991404
EC/TDS and temperature measurements. These microprocessor indicators
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 stability indicator and hold features prompt the user
when to take the reading and freezes the display for easy and accurate
recording.

Calibration and temperature compensation is automatic, while the EC/TDS
conversion factor and temperature coefficient (ß) are user adjustable for
application-specific measurements.

These instruments are supplied with an advanced, non-clogging double
junction pH electrode and a rugged conductivity probe that will withstand
even the most aggressive environments. The instruments are powered by a
12 volt dc transformer and are easy to install and use.
Product # 716800 HANNA PH/EC/TDS TEMP CONT (HI991404)              
MSRP: $194.95
716801 HANNA REP. PH PROBE (HI1293) MSRP: $111.95
The 24-7 Nutrient Meter from Control Wizard Products is a great all around
meter for nutrient applications needing constant monitoring. It measures PPM,
pH and Temperature and with its large illuminated display it is easy to read
from a distance. Calibration screws are conveniently located on the front for
easy access. 6 month limited warranty.

716572 24-7 NUTRIENT MONITOR W/CALIB. SOLUTION MSRP: $208.95
716573 24-7 PH REPLACEMENT PROBE (MSRP: $49.95
716579 24-7 MONITOR PPM REPL. ELECTRODE MSRP: $49.95
Dual Range 0-9990 ppm.
Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution.
Meters can be recalibrated with a mini-screwdriver.
Comes equipped with Mur-lok® Quick-Connect T-fittings.
Installs quickly and easily.
One year warranty.
Product # : 716186 MSRP: $44.99
hydroponic crops that require a higher than normal EC or CF requirement during
about and does not need calibrating.
Fully waterproof.
No calibration required.
Auto sense on and off.
No external switches or adjustable buttons.
Battery life minimum 1 year (or shelf life of battery).
5 year Bluelab Guarantee.
Product # : 716049  MSRP: $135.00