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bencelest · 03-20-2008, 02:49 PM

But if I have to buy a new one right now I'd probably buy one of these because it monitors nutrients you are giving them and monitors pH continosly

HANNA GroCheck Combo Meter - pH & TDS Meter
This is one of our favorite meters. It allows you to measure both pH and TDS (EC) at the same time, while conveniently hanging on the wall above your nutrient. The two professional quality probes are continually submerged in solution so that they have a real-time readout, without preparation or having to wait.

Although the Grocheck Combo Meter is a bit more expensive than other meters, the replaceable electrode on the probe allows for meter maintenance instead of meter replacement. Eventually it will pay for itself. Made by Hanna Instruments.

HI 981404N is ideal for agricultural, horticultural and hydroponics applications where pH and TDS levels need to be continuously monitored for optimal plantgrowth. HI 981404N continuously monitors and displays the pH and TDS values of a solution on an easy to read set of dual LCD's.

The HI 1286 gel filled pH electrode is replaceable and the BNC connector is protected behind a waterproof sheath. The unique design of the electrode guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc.

TDS measurements are performed using the 4-4-2 conversion factor of 0.7 so you do not need to convert the readings. Equipped with a grounding bar to ensure more accurate pH measurements and longer electrode life. The HI 981404N is compact and easy to install and use. This makes it ideal for all continuous monitoring applications.

HI 981404N is supplied complete with HI 1286 pH electrode, HI 7634 TDS probe, HI 1283 grounding bar, pH and TDS calibration solutions (20 mL each), screwdriver, 12 Vdc adapter and instructions.
• Range 0.0 to14.0 pH; 0 to 1990 mg/L (ppm)
• Resolution 0.1 pH; 10 mg/L (ppm)
• Accuracy (@20°C/68°F) ±0.2 pH; ±2% F.S.
• Calibration Manual at 1 or 2 points (pH); manual at 1 point (TDS)
• Setpoint pH, adjustable from 3.0 to 7.0 pH; TDS, adjustable from 500 to 1600 mg/L (ppm) Alarm 2 LED's (1 each for pH and TDS)
• Temp. Compensation Automatic from 5 to 50°C (41 to 122°F) (TDS only)
• TDS Conversion Factor 0.7 ppm = 1 µS/cm
• Probe HI 1286 interchangeable pH electrode, HI 7634 TDS probe (fixed), HI 1283 grounding bar with 1 m (3.3') cable (included)
• Battery Type / Life 12VDC adapter (included)
• Dimensions 165 x 110 x 35 mm (6.5 x 4.3 x 1.3")
• Weight 300 g (10.6 oz.)
Product ID: HI981404N Category: pH and Nutrient- pH and Nutrient Monitoring and Control
Price: $169.95
Sale Price: $117.95
Savings: $52.00

03-20-2008, 02:49 PM	#12 (permalink)
bencelest Banana Nut bencelest's Photo Gallery Location: California Zone 9 Zone: 9 Name: Benny Join Date: Jan 2007 Posts: 3,058 BananaBucks : 262,653 Feedback: 3 / 100% Said "Thanks" 15 Times Was Thanked 1,415 Times in 653 Posts Said "Welcome to Bananas" 0 Times	Re: your pH meter might be broken if ... But if I have to buy a new one right now I'd probably buy one of these because it monitors nutrients you are giving them and monitors pH continosly HANNA GroCheck Combo Meter - pH & TDS Meter This is one of our favorite meters. It allows you to measure both pH and TDS (EC) at the same time, while conveniently hanging on the wall above your nutrient. The two professional quality probes are continually submerged in solution so that they have a real-time readout, without preparation or having to wait. Although the Grocheck Combo Meter is a bit more expensive than other meters, the replaceable electrode on the probe allows for meter maintenance instead of meter replacement. Eventually it will pay for itself. Made by Hanna Instruments. HI 981404N is ideal for agricultural, horticultural and hydroponics applications where pH and TDS levels need to be continuously monitored for optimal plantgrowth. HI 981404N continuously monitors and displays the pH and TDS values of a solution on an easy to read set of dual LCD's. The HI 1286 gel filled pH electrode is replaceable and the BNC connector is protected behind a waterproof sheath. The unique design of the electrode guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc. TDS measurements are performed using the 4-4-2 conversion factor of 0.7 so you do not need to convert the readings. Equipped with a grounding bar to ensure more accurate pH measurements and longer electrode life. The HI 981404N is compact and easy to install and use. This makes it ideal for all continuous monitoring applications. HI 981404N is supplied complete with HI 1286 pH electrode, HI 7634 TDS probe, HI 1283 grounding bar, pH and TDS calibration solutions (20 mL each), screwdriver, 12 Vdc adapter and instructions. • Range 0.0 to14.0 pH; 0 to 1990 mg/L (ppm) • Resolution 0.1 pH; 10 mg/L (ppm) • Accuracy (@20°C/68°F) ±0.2 pH; ±2% F.S. • Calibration Manual at 1 or 2 points (pH); manual at 1 point (TDS) • Setpoint pH, adjustable from 3.0 to 7.0 pH; TDS, adjustable from 500 to 1600 mg/L (ppm) Alarm 2 LED's (1 each for pH and TDS) • Temp. Compensation Automatic from 5 to 50°C (41 to 122°F) (TDS only) • TDS Conversion Factor 0.7 ppm = 1 µS/cm • Probe HI 1286 interchangeable pH electrode, HI 7634 TDS probe (fixed), HI 1283 grounding bar with 1 m (3.3') cable (included) • Battery Type / Life 12VDC adapter (included) • Dimensions 165 x 110 x 35 mm (6.5 x 4.3 x 1.3") • Weight 300 g (10.6 oz.) Product ID: HI981404N Category: pH and Nutrient- pH and Nutrient Monitoring and Control Price: $169.95 Sale Price: $117.95 Savings: $52.00 __________________ Banana Nut