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19 LED Green Head lamp
Hands-free headlamp for indoor horticulture emits a bright green light beam that doesn't disrupt your plant's growth cycle while you check up on them.
$24.95 $10.99
7-Day Grounded Digital Timer
Using a timer to automate lighting for your plants adds convenience and encourages productive growth with consistent hours of light. Timers are als
$24.99 $13.99
8" Raptor Reflector
This new mega reflector was designed with our customers' needs in mind. You wanted bigger, broader, brighter light coverage... our engineers built it
$274.95 $239.99
8" Raptor Reflector With Dual Lamps
Size matters! You wanted bigger, broader, brighter light coverage... our engineers designed it and then doubled it with our new Dual Raptor. This mega
$274.95 $245.00
8' Cord Set w/ Socket for Vertical Hanging
All SystemTM 8' Cord Set with socket for vertical hanging of compact fluorescents No external reflector brackets required Patent #s: U.S. 7025,479
$15.95 $12.95
Abscent Backpack Insert - Black
Abscent bags have the THICKEST, MOST CONCENTRATED CARBON LINER in the market today Premier Quality Activated Carbon Lining Mesh Lining to Prot
$120.00 $64.99
Abscent Large Duffel - Black
Abscent bags have the THICKEST, MOST CONCENTRATED CARBON LINER in the market today Premier Quality Activated Carbon Lining NEW ANTIMICROBIAL L
$275.00 $250.00
Abscent Large Duffel Insert - Black
Abscent bags have the THICKEST, MOST CONCENTRATED CARBON LINER in the market today Premier Quality Activated Carbon Lining NEW ANTIMICROBIAL L
$150.00 $100.00
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19 LED Green Head lamp
Hands-free headlamp for indoor horticulture emits a bright green light beam that doesn't disrupt your plant's growth cycle while you check up on them.
$24.95 $10.99
7-Day Grounded Digital Timer
Using a timer to automate lighting for your plants adds convenience and encourages productive growth with consistent hours of light. Timers are als
$24.99 $13.99
8" Raptor Reflector
This new mega reflector was designed with our customers' needs in mind. You wanted bigger, broader, brighter light coverage... our engineers built it
$274.95 $239.99
8" Raptor Reflector With Dual Lamps
Size matters! You wanted bigger, broader, brighter light coverage... our engineers designed it and then doubled it with our new Dual Raptor. This mega
$274.95 $245.00
8' Cord Set w/ Socket for Vertical Hanging
All SystemTM 8' Cord Set with socket for vertical hanging of compact fluorescents No external reflector brackets required Patent #s: U.S. 7025,479
$15.95 $12.95
Abscent Backpack Insert - Black
Abscent bags have the THICKEST, MOST CONCENTRATED CARBON LINER in the market today Premier Quality Activated Carbon Lining Mesh Lining to Prot
$120.00 $64.99
Abscent Large Duffel - Black
Abscent bags have the THICKEST, MOST CONCENTRATED CARBON LINER in the market today Premier Quality Activated Carbon Lining NEW ANTIMICROBIAL L
$275.00 $250.00
Abscent Large Duffel Insert - Black
Abscent bags have the THICKEST, MOST CONCENTRATED CARBON LINER in the market today Premier Quality Activated Carbon Lining NEW ANTIMICROBIAL L
$150.00 $100.00

pH Accessories

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The Active Aqua floating thermometer delivers easy and accurate readings of your water temperature. No more worries about losing your tools to the depths of a pool or other body of water. This gauge floats and has a pressure sensitive backing for easy mounting. It features readings in both Celsius and Fahrenheit, as well as clear markings that delineate ideal nutrient temperature. ..
$3.75
The Bluelab® Guardian Monitor Connect, Bluelab® Connect Stick, Bluelab® Connect Range Extender and Bluelab® Connect Software. The Bluelab® Guardian Monitor Connect can connect wirelessly to a computer at the grow site via the Bluelab® Connect Stick, which enables the data logging of pH, Conductivity and Temperature to the FREE Bluelab® Connect Software, downloadable online. The logged information ..
$135.00
Get connected - data log and view nutrient measurements from your crop wirelessly. The Bluelab Connect Stick receives wireless data from Bluelab Connect Monitors or Controllers, logging the data to the cloud. One Connect Stick will receive data from multiple Bluelab Connect Devices. Simply place the Connect Stick into a USB port on your computer, download and install the free Connect Softwar..
$128.50
Bluelab is excited to introduce a new accessory which makes transporting and using their Meters even easier! The Bluelab Carry Case provides a custom fit so you can use and read your Bluelab Meter right from the carry case. A firm outer casing offers impact reduction for your Meter. There are two pockets in the top of the case especially made for meter probes. The internal strap is a tidy way to ..
$23.65
Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double junction reference providing longer life! ..
$64.99
Handy for direct pH testing of soils or pH soil solutions. The non-refillable Bluelab Soil pH Probe is used to measure the pH levels of soil or media of cropping, pasture, containerised plants, home gardens, propagation culture... anywhere that the soils' pH requires testing. The Bluelab Soil pH Probe can be connected to the Bluelab pH Meter and Bluelab Combo Meter. Features • Waterproof..
$79.00
The pH Checker supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.01 pH. This compact tester features an easy to read LCD and simple to perform two point calibration. The pH electrode of the Checker can be easily replaced. You only need to unscrew the electrode from the meter body and screw on a new one. The Checker is fast, accurate, lightweight, and with 3000..
$48.50
Keep your pH/conductivity/TDS tester running strong with a GroChek replacement probe. Built for the GroChek HI9813-0, this probe helps make your measurement device fast, efficient, accurate, and portable. ..
$117.06
Keep your GroChek HI9813 pH temperature meter running strong with a companion replacement probe. The probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. The meter this probe supports is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming, and nurse..
$146.99 $105.54
This pH/EC/TDS/temperature probe probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. It is a replacement electrode for the GroChek series "-5" models: HI9813-5 & HI9813-5N, and is designed for simplicity of use in taking pH, mS/cm, ppm and temperature in the °C scale measurements. The meter the probe supports is a versatile, water resis..
$146.99 $114.80
The perfect  tool for watering Rockwool. The syringe with a needle made from 1/4" tubing allows you to easily take a water sample from your Rockwool. If the water sample shows too high pH, it is time to water again. Measures from 5 - 60 ml. ..
$8.59
EC/TDS Probe for HI981409 & HI981410 with DIN connector measures 24 cm (9.4") and can be used to mix the fertilizer solution. The meter switches off after five minutes of inactivity to save battery life. The outer casing also incorporates a molded eye so that the meter can be hung right where it is needed. Calibration with this meter is easy and completely automatic. Simply press and hold the..
$69.95
Hanna replacement EC electrode for pocket testers. ..
$57.95 $49.00
pH combination electrode Ultem body double-junction, refillable, cloth junction, gel filled, 1m cable ..
$61.95
pH Combo Electrode Glass Body - Refillable Temp. Sensor ..
$162.75
The HortiStick 3-in-1 brings the best of technology into one sleek meter. It combines the measurement of the three most crucial parameters needed for a successful harvest: pH, Conductivity and Temperature. Package content: Main Unit, Hand Strap, Replaceable Probe, Operations Manual, 4x AA Size Batteries. Simple and easy to use. Simultaneous display of pH and nutrient concentration. Replaceable sen..
$86.02
Double junction pH electrode with 1 meter ccable and gel filled electrolyte solution for all "MW" and old style "SM" pH units. **Note: This probe replaces the old MA911B/1 ..
$62.99 $59.25
MA 850 Replacement probe FOR MISM802 ONLY, NOT MIMW802 ..
$99.95 $92.96
This is a replacement electrode for the ph55 and pH56 models of pocket pH/Temperature meter by Milwaukee Instruments. ..
$54.99 $42.00
Combination Probe For pH/EC/TDS with 1 meter cable  ** FOR NEW STYLE MIMW802 UNITS ONLY, NOT MISM802 ..
$112.99 $92.96
Purchase this replacement sensor for your Oakton Low/High/EC High tester and keep your instrument running in the most efficient shape possible. Note that this is a replacement sensor; purchase the Oakton device separately. Replacement sensors and solutions: OK-35661-17 for TDS tester Low, High, ECTestr High OK-35653-13 15 mS calibration solution for High testers ..
$80.99 $76.80
Expand the lifetime of your Oakton pH tester by keeping these replacemen sensors on hand. These pH testers work with Oakton's line of 10, 20, and 30 series pHtestrs (OK3563410, OK3563420, and OK3563430). ..
$104.99 $92.96
This part number is just for a replacement electrode for your Oakton pH WP 2 pen, not the actual unit itself. Optimize nutrient strength during growth, flowering, and fruiting. Reliable waterproof, dustproof housing and replaceable electrode provide long life and value, meaning you won't need to invest in or calibrate another Oakton pen once you've become comfortable using yours. Replacement sens..
$78.99 $76.95