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  1. Bluelab Pro Controller Wi-Fi pH and conductivity controller / regulator / EC
    Bluelab Pro Controller Wi-Fi pH and conductivity controller / regulator / EC
    €1,195.00
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  2. Bluelab Pulse Meter
    Bluelab Pulse Meter Moisture, temperature and nutrient meter with Bluetooth
    €329.00
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  3. Bluelab Replacement Multimedia Temperature Probe/Electrode (0-50ºC)
    Bluelab Replacement Multimedia Temperature Probe/Electrode (0-50ºC)
    €54.90
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  4. Bluelab Combo Meter Plus Medidor de pH, temperatura y Conductividad en cultivos
    Bluelab Combo Meter Plus pH, ºC and conductivity meter EC
    €359.00
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  5. Bluelab OnePen 3-in-1 Portable Digital EC/pH and Temperature Meter
    Bluelab OnePen 3-in-1 Portable Digital EC/pH and Temperature Meter
    €245.00
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  6. Bluelab Guardian Monitor Inline Wi-Fi Continuous pH / Conductivity / ºC
    Bluelab Guardian Monitor Inline Wi-Fi Continuous pH / Conductivity / ºC
    €609.00
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  7. Total Hardness Low Range Checker Handheld Colorimeter (HI735)
    Total Hardness Low Range Checker Handheld Colorimeter (HI735)
    €99.90
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  8. HM Digital DM-3 Commercial dual inline EC and TDS Monitor
    HM Digital DM-3 Commercial dual inline EC and TDS Monitor
    €77.90
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  9. HM Digital LBS-10 Leak Block Sensor
    HM Digital LBS-10 Leak Block Sensor
    €50.90
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  10. Bluelab pH Controller / Regulator via Wi-Fi (pH Controller Connect)
    Bluelab pH Controller / Regulator via Wi-Fi (pH Controller Connect)
    €556.00
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  11. 100x Reagents for Checker Total Chlorine Meter Hanna (HI95761-01)
    100x Reagents for Checker Total Chlorine Meter Hanna (HI95761-01)
    €34.90
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  12. Terra Aquatica Test Kit 4.0 to 8.5 pH 500 tests (30ml)
    Terra Aquatica Test Kit 4.0 to 8.5 pH 500 tests (30ml)
    €4.29
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  13. Laboratory bench meter EC / TDS / temperature with GLP Adwa (AD3000)
    Laboratory bench meter EC / TDS / temperature with GLP Adwa (AD3000)
    €325.00
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  14. Solución de calibración en sobre Hanna Redox ORP 470mv 20ml (HI700224P)
    Hanna ORP 470mv 20ml ORP calibration solution in sachet (HI700224P)
    €1.79 Starting from €1.49
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  15. Benetech Sonómetro medidor de Ruido / Sonido 30-130dB (GM1356)
    Benetech Sound Level Meter Noise / Sound 30-130dB (GM1356)
    €59.90
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  16. Fuzion Pocket Scale / Precision balance 1000g/0,1g (SLR-1000)
    Fuzion Pocket Scale / Precision balance 1000g/0,1g (SLR-1000)
    €9.99
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  17. Aquamaster Combo Pen Pro Medidor digital de pH / Temperatura / EC (P110 PRO)
    Aquamaster Combo Pen Pro EC / ph Meter and Temperature Conductivity (P110 PRO)
    €74.90
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  18. Hanna HI 70642L Cleaning solution for probes with cheese deposits (500ml)
    Hanna HI 70642L Cleaning solution for probes with cheese deposits (500ml)
    €39.90
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  19. Adwa (AD630)
    Professional Waterproof Portable Dissolved Oxygen Meter Adwa (AD630)
    €624.90
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  20. Adwa AD332
    Professional Waterproof Portable E.C/ TDS/ Temp Meter Adwa (AD332)
    €228.90
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The nitrite ion has the chemical formula NO2−. The anion is symmetric with equal N-O bond lengths and a O-N-O bond angle of ca. 120°.