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Meters, Timers & Instruments: pH, EC, PPM & TDS Testers: pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil

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Displaying 161 to 180 (of 342 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model+   Price   Buy Now 
 Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N)   Hanna Instruments   Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) 
Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) (eco-5422C)GroChek pH & TDS Combo Continuous Reading Meter Displays pH & EC Simultaneously Adjustable Setpoints Space Efficient Hanna Dual Grochek The HI 981404N is ideal for hydroponic applications where pH and TDS levels need to be continuously monitored. These wall mount monitors feature a larg... — Ships from Seattle, Washington USA...more info.
 eco-5422C   $153.15 
 Dual Grochek - Same as above - self calibrating (HI991404)   Hanna Instruments   Dual Grochek - Same as above - self calibrating (HI991404)  
Dual Grochek - Same as above - self calibrating (HI991404) (eco-5422D)GroChek pH/EC/TDS/Temp. Combo Large, Dual-level Backlit LCD Waterproof Auto Calibration & pH Temp. Computing Hanna Dual Grochek The HI 991404 continuously monitors pH/EC/TDS/Temp. in your nutrients. Comes with a rugged, nonclogging pH electrode and conductivity probe that will stand up to the most agressi... — Ships from Seattle, Washington USA...more info.
 eco-5422D   $179.29 
 pH Test Indicator 8 oz.   General Hydroponics   pH Test Indicator 8 oz. 
pH Test Indicator 8 oz. (eco-5516)pH Test Indicator 8 oz General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, w... — Ships from Seattle, Washington USA...more info.
 eco-5516   $6.51 
 pH Test Kit 1 oz.   General Hydroponics   pH Test Kit 1 oz. 
pH Test Kit 1 oz. (eco-5517)pH Test Kit, 1 oz pH test kit. Contains pH test fluid and test strips SKU: GH1515 Weight: 1.0 lbs. Package Dimensions: 5.5L x 2.6W x 1.0H Suggested Retail: $7.54 Manufacturer's Product Information MSRP $7.54 ... — Ships from Seattle, Washington USA...more info.
 eco-5517   $4.56 
 pH Control Kit   General Hydroponics   pH Control Kit 
pH Control Kit (eco-5518)pH Control Kit Contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Phosphoric acid to lower the pH to the proper level), and Ph Test Indicator (fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liq... — Ships from Seattle, Washington USA...more info.
 eco-5518   $10.41 
 Hanna Gro'Chek pH Monitor HI 981401N   Hanna Instruments   Hanna Gro'Chek pH Monitor HI 981401N 
HI 981401N Gro'Chek Ph Monitor gel-filled pH electrode has been specially designed to address the needs of growers. Measurements are highly accurate and can be verified with two point calibration... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5521E   $96.98 
 Hanna Gro'Chek TDS Monitor HI 983301N   Hanna Instruments   Hanna Gro'Chek TDS Monitor HI 983301N 
HI 983301N Gro'Chek TDS Monitor displays instantaneous readings of both EC/ TDS/Temperature. Calibration and temperature compensation are automatic.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5521F   $85.50 
 Hanna ph Gro'Chek Stick Tester HI 981408   Hanna Instruments   Hanna ph Gro'Chek Stick Tester HI 981408 
HI 981408 pH Gro'Chek® Stick Tester is an ideal tester for use in nutrient mixing tanks. This tester will run for 2000 hours continuously on AA batteries.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5521G   $75.50 
 Hanna TDS Gro'Chek Stick Tester HI 981409   Hanna Instruments   Hanna TDS Gro'Chek Stick Tester HI 981409 
HI 981409 TDS Gro'Chek Stick Tester is a TDS tester ideal for mixing fertilizer. This tester will run for 2000 hours continuously on AA batteries.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5521H   $115.95 
 Hanna Dist 5 TDS Pen (HI 98311)   Hanna Instruments   Hanna Dist 5 TDS Pen (HI 98311) 
Hanna Dist 5 TDS Pen (HI 98311) (eco-5522A)DiST 5 EC/TDS Meter Dual-level LCD Replaceable Graphite Electrode Cartridge Automatic Calibration Dist 5 Dist 5 will accurately measure EC and TDS. Features include replaceable electrode, adjustable TDS ratio, temperature in degrees C or degrees F, automatic temperature compensation, battery level indicator and automa... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5522A   $95.07 
 Replacement probe for Combo Pen (HI 73127)   Hanna Instruments   Replacement probe for Combo Pen (HI 73127) 
Replacement probe for Combo Pen (HI 73127) (eco-5522B)Replacement pH Electrode for HI98127, HI98128, HI98129, & HI98130 Replacement pH Electrode for HI98127, HI98128, HI98129, & HI98130 SKU: HI73127 Weight: 1.0 lbs. Package Dimensions: 5.7L x 2.7W x 1.1H Suggested Retail: $58.95 Manufacturer's Product Information ... — Ships from Seattle, Washington USA...more info.
 eco-5522B   $42.35 
 Hanna pHep 5 pH Pen (HI 98128)   Hanna Instruments   Hanna pHep 5 pH Pen (HI 98128) 
Hanna pHep 5 pH Pen (HI 98128) (eco-5522C)Hanna Gro'CHEK pHEP 5 Meter The pHep 4 and pHep 5 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing. pHep 5 pHep 5 is the most advanced pH tester on the market today. Has ... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5522C   $96.52 
 Replacement probe for pHep 5 (HI 73127)   Hanna Instruments   Replacement probe for pHep 5 (HI 73127) 
Replacement probe for pHep 5 (HI 73127) (eco-5522D)Replacement probe for pHep 5 (HI 73127) Manufacturer's Product Information MSRP $59.95 ... — Ships from Seattle, Washington USA...more info.
 eco-5522D   $45.70 
    Hanna Instruments   Replacement probe for Dist 5 (HI 73311) 
Replacement probe for Dist 5 (HI 73311) (eco-5522E)Replacement probe for Dist 5 (HI 73311) Manufacturer's Product Information MSRP $59.95 ... — Ships from Seattle, Washington USA...more info.
 eco-5522E   $50.40 
 Hanna pHep 1 pH Pen (HI 98107)   Hanna Instruments   Hanna pHep 1 pH Pen (HI 98107) 
Hanna pHep 1 pH Pen (HI 98107) (eco-5523)pHep pHep®, the standard in pH measurement with 0.1 pH accuracy, has 2 point calibration, large LCD, pull out replenishable junction and 700 hour battery life. The pHep® pH tester features a casing that is more rugged and has been ergonomically enhanced to better fit your hand. The pHep® comes with a protective cap that can... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5523   $48.61 
 Hanna Conductivity Soil Test Pen (HI 98331)   Hanna Instruments   Hanna Conductivity Soil Test Pen (HI 98331) 
Hanna Conductivity Soil Test Pen (HI 98331) (eco-5523A)Hanna Soil Test Pen - The HI 98331 takes quick and accurate readings directly in soil. It is the only meter available that will take conductivity readings directly from the soil without creating a soil solution for testing. The meter also measures temperature and the conductivity readings are compensated for temperature... — Ships from Seattle, Washington USA...more info.
 eco-5523A   $105.96 
 Hanna Dist 1 TDS Pen (HI 98300)   Hanna Instruments   Hanna Dist 1 TDS Pen (HI 98300) 
Hanna Dist 1 TDS Pen (HI 98300) (eco-5524)Dist 1 Dist 1 are reliable, pocket-sized instruments that will give you quick and accurate readings of TDS. Comes complete with protective cap, screwdriver, batteries and instructions. One year warranty. Manufacturer's Product Information ... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5524   $47.80 
 Hanna pH Checker Kit - HI 98103H   Hanna Instruments   Hanna pH Checker Kit - HI 98103H 
Includes: HI 98103 pH tester, instrument case, calibration tool, and two each of pH 7.01, 4.01 and cleaning solution sachets (20 mL each).... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5524A   $34.18 
 Hydroponic pH Tester - HI99104H   Hanna Instruments   Hydroponic pH Tester - HI99104H 
An economical, professional pH tester for growers. Replaceable probe, easy to use, no calibration tools required! Presented in attractive blister packaging; designed for hanging displays.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA...more info.
 eco-5524B   $34.18 
 pH & EC Cleaning & Calibration Kit   Hanna Instruments   pH & EC Cleaning & Calibration Kit 
Attractive, easily shelved packaging, with both written and photographic instructions on solution use. Aggressively priced to encourage customers to purchase more maintenance solutions. Includes five each of pH 7.01, 1413 uS/cm, and cleaning solution (20 mL sachets)... — Ships from Seattle, Washington USA...more info.
 eco-5524D   $16.17 
Displaying 161 to 180 (of 342 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  [Next >>] 
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