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Drifting EC readings can throw off an entire nutrient schedule, and a single bad calibration is often the culprit. Aqua Master's EC 1413 Calibration Solution resets your Aqua Master Tools P700 Pro 2 Combo Meter or other EC device to a precise, NIST-traceable benchmark in seconds, so every reading afterward reflects what's actually in your reservoir.
Each box holds 25 individually sealed 20ml sachets — enough single-use solution to keep meters accurate across an entire grow cycle without ever risking cross-contamination. To ensure total accuracy across your entire sensor array, many growers also keep Aqua Master Tools pH 7.00 calibration solution sachets on hand for their pH probes.
Certified EC 1413 μS/cm formulation calibrates meters to a recognized national standard.
Box includes 25 individual 20ml sachets, enough to last a full growing season.
Individually sealed packs prevent contamination, so every calibration starts fresh and accurate.
Stays accurate when stored between 15-25°C, ideal for grow rooms, tents, and labs.
| Specification | Value |
|---|---|
| Solution Type | EC 1413 Calibration Solution |
| Volume per Sachet | 20 ml |
| Sachets per Box | 25 |
| Standard | NIST-Traceable |
| Storage Temperature | 15 – 25 °C |
| Package Dimensions | 7.48 × 3.35 × 5.91 in |
Most growers calibrate weekly, or any time readings seem inconsistent. This is especially important for high-performance tools like the Aqua Master Tools E300 Pro Substrate EC/Temp meter to maintain pinpoint accuracy.
No, each 20ml sachet is intended for single use. Reusing solution can introduce contamination and lead to inaccurate calibration.
EC 1413 refers to the solution's electrical conductivity value of 1413 μS/cm, a standard reference point used to calibrate EC and TDS meters.
Keep sachets sealed and store them between 15-25°C, away from direct sunlight and extreme temperatures, to preserve accuracy until use.
Yes, EC 1413 is a widely used industry-standard calibration point, making it compatible with the Aqua Master Tools H600 Pro Handheld Substrate Meter and most other consumer and commercial EC and TDS meters.
Each box includes 25 individual 20ml sachets, giving you 25 single-use calibration sessions for your meter.
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Equipping home growers, craft producers, and commercial operations across North America since 2016.
