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What do we have here?
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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What do we have here?
Displaying 81 to 100 (of 289 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model   Price-   Buy Now 
 OAKTON WATERPROOF pH TESTER 30   Oakton   OAKTON WATERPROOF pH TESTER 30 
Oakton Waterproof Dbl Junction pHTestr® 30 w Temperature WATERPROOF PH TESTER 30 Dual Display of pH & TemperatureHigh 0.01 pH accuracy Simultaneous pH and temperature (C) displaypH range - 1.0 to 15.0 pH Three point push-button calibrationDouble junction electrode ideal for dirty water, heavy sulfides and organicsIncreased reference gel volume offers significantly ... Note: Calibration Buffer Solutions are available separately. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 716048   $116.00 
 Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC   Oakton   Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC 
Oakton Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC (OK3563430)Optimize nutrient strength during growth, flowering, and fruiting by knowing exactly what is going on with your plants. Use the Oakton pH tester with accurate ATC to get instant at-a-glance readings. Features Reliable waterproof, dustproof housing Replaceable electrode to provide long life and value Aut... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-OK3563430   $113.81 
 Oakton Waterproof EC Tester 11+   Oakton   Oakton Waterproof EC Tester 11+ 
Oakton Oakton Waterproof EC Tester 11+ (OK3566235) Automatically or manually select measuring rangeWaterproof, dustproof housings float Push-button calibration, HOLD function, and error messages Use these testers for either cup-style or dip-style measurements. For cup style, pour a small amount of your sample directly into the sensor cup until it overflows; for dip style, simply ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-OK3566235   $113.81 
 Oakton Waterproof TDS Tester11+   Oakton   Oakton Waterproof TDS Tester11+ 
Oakton Oakton Waterproof TDS Tester11+ (OK3566215)The Oakton TDSTestr 11 Series of TDS testers has a large, easy-to-read two-line display that shows units, measurement status, and a battery life indicator. The replaceable electrode allows for reuse of the same meter body over and over. The tester's temperature readout simultaneously displays in °C or °F. The full reading is... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-OK3566215   $112.48 
 DiST 5 Waterproof Meter.   Hanna Instruments   DiST 5 Waterproof Meter. 
Hanna Instruments model HI 98311. TDS ( reads in PPM), EC and temperature meter tester. Waterproof and designed to float. Feels great in your hand. Very stylish and modern. Low battery indicator. A great buy.... — Ships from Portland, Oregon USA....more info.
 HY1742   $111.31 
 Bluelab Connect Range Extender   Bluelab   Bluelab Connect Range Extender 
Bluelab Connect Product Suite 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, do... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 716488   $109.16 
 Bluelab Connect Range Extender (Special Order)   Bluelab   Bluelab Connect Range Extender (Special Order) 
Boost the wireless range between Bluelab Connect Products. The Bluelab Connect Range Extender is required if you need to boost the signal range for wireless monitoring of your crop. Simply plug into a power supply to use when there is a longer distance to cover between Bluelab Connect devices and the Bluelab Connect Stick. For extra-long distances multiple Connect Range Extenders... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-BLU8003   $109.16 
 Continuous Monitor/Portable PH meter   Milwaukee Instruments   Continuous Monitor/Portable PH meter 
Milwaukee Instruments Continuous Monitor/Portable PH meter (MIBEM101)pH Meter, Range 0.00 to 14.00 pH, With 2 Point Manual Calibration, Manual Temperature Compensation, ±0.02 pH Accuracy, comes with a SE220 Double Junction pH probe, 110 Volt Power Supply, & 9volt battery, With Unit Mounting Kit, Probe Holder, 20 ml. pH 7.01 & 4.01 Sachet Calibration Solution & Screwdriver fo... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-MIBEM101   $109.15 
 Dosatron Pressure Regulator w/ Gauge - 3/4 in (FPT x FPT)      Dosatron Pressure Regulator w/ Gauge - 3/4 in (FPT x FPT) 
Pressure reducing valves are devices which, when installed on water systems, decrease the pressure from incoming water lines. 3/4 in NPT female inlet and outlet, working pressure: 15-87 psi, max incoming pressure: 230 psi. Max temp: 140 °F. Chrome plated brass body with 2 in face.... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 709018   $108.72 
 Grochek Replacement Probe for HI9813-5N & HI9811-5N   Hanna Instruments   Grochek Replacement Probe for HI9813-5N & HI9811-5N 
Hanna Instruments Grochek Replacement Probe for HI9813-5N & HI9811-5N (HI12855)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 °... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-HI12855   $104.49 
 GroChek Hanna pH Indicator   Hanna Instruments   GroChek Hanna pH Indicator 
Hanna Instruments GroChek Hanna pH Indicator (HI981401N)This pH indicator has been designed to meet the grower's need for equipment suited to the aggressive environments found in agricultural and hydroponics applications. The housing is water-resistant and features a molded eye which allows installation right above the sample to be monitored. Measurements are highly accurate and ca... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-HI981401N   $104.49 
 Oakton pHTestr 20 - .01 pH Accuracy *ATC   Oakton   Oakton pHTestr 20 - .01 pH Accuracy *ATC 
Oakton Oakton pHTestr 20 - .01 pH Accuracy *ATC (OK3563420)Optimize nutrient strength during growth, flowering, and fruiting by knowing exactly what is going on with your plants. Use the Oakton pH tester with accurate ATC to get instant at-a-glance readings. Features Reliable waterproof, dustproof housing Replaceable electrode to provide long life and value Auto shutoff conserves ... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-OK3563420   $104.49 
 pH Monitor / Hi-Lo User Select Alarm   Milwaukee Instruments   pH Monitor / Hi-Lo User Select Alarm 
Milwaukee Instruments pH Monitor / Hi-Lo User Select Alarm (MIMC110)• pH Monitor, Range: 0.0 to 14.0 • 2 Point Manual Calibration, Accuracy of ±0.2 pH • Set Point Range: 3.5 to 7.5 pH • LED Visual Alarm Active when reading is Higher or Lower (user select) than the set point Supplied with 12 V DC Power Adapter, MA911B/2 Double Junction pH Probe, 20 ml. pH ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-MIMC110   $103.16 
 Bluelab Connect Stick   Bluelab   Bluelab Connect Stick 
Bluelab Connect Product Suite 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, do... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 716486   $100.95 
 Bluelab Connect Stick   Bluelab   Bluelab Connect Stick 
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 Con... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
 hf-BLU8002   $99.84 
 Milwaukee pH Monitor MC110   Milwaukee Instruments   Milwaukee pH Monitor MC110 
Milwaukee Instruments pH Monitor - MC110 Professional pH monitor User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC adapter, mounting kit, and 20ml pH 7.01 calibration solution Double junction pH electrode with 2m cable (BNC connector) ... Note: Calibration Buffer Solutions are available separately. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 716682   $99.45 
 Milwaukee pH Monitor MC120   Milwaukee Instruments   Milwaukee pH Monitor MC120 
Milwaukee Instruments pH Monitor - MC120 Professional pH monitor User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC adapter, mounting kit, and 20ml pH 7.01 calibration solution Double junction pH electrode with 2m cable (BNC connector) ... Note: Calibration Buffer Solutions are available separately. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.
 716684   $99.45 
 GroChek pH Meter.   Hanna Instruments   GroChek pH Meter. 
HANNA GRO CHEK pH Meter. This meter provides a continuous digital pH reading. It is powered by a simple transformer. The electrode rests in your reservoir or nutrient tank and provides real-time pH monitoring. You can have a professional piece of equipment at consumer prices!... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY181   $99.25 
 Accurate PPM 9   Control Wizard   Accurate PPM 9 
This continuous PPM monitor is rugged in design and function. The meter displays both PPM and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and PPM electrode for superior ac... — Ships from Portland, Oregon USA....more info.
 CW514   $99.25 
 GroChek TDS Meter.   Hanna Instruments   GroChek TDS Meter. 
Hanna Gro Chek TDS Meter. Locate probe in your nutrient tank or reservoir for continuous TDS reading. A very handy device for the seriious gardener. Measured in PPM.Hanna Product Number: HI983301N ... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY180   $94.61 
Displaying 81 to 100 (of 289 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  [Next >>] 
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