Red Sea ReefSense pH Calibration Pack (pH 7 & 10, 10-Pack)

The Red Sea ReefSense pH Calibration Pack keeps your ReefControl system reading true. Every pH probe drifts a little over time, and in a reef that drift can hide the daily pH swing and calcification trends you are actually trying to track. This pack gives you ten single-use, hermetically sealed foil sachets, five at pH 7.00 and five at pH 10.00, for fast two-point calibration of the ReefSense pH & Temperature Probe guided step by step in the ReefBeat app. Because the 7.0 and 10.0 standards bracket the natural marine range of 8.0 to 8.4, your probe is most accurate exactly where a reef tank lives.

Why You'll Love It

• Reef-range accuracy. High-range 7.0 and 10.0 standards bracket the 8.0 to 8.4 band reef tanks run in.
• Fresh fluid every time. Single-use airtight sachets avoid the evaporation, CO2 absorption, and contamination that spoil opened bottles.
• Made for ReefBeat. Pre-measured volumes match the app's guided two-point calibration.
• Five full cycles. Enough pairs to cover a year of routine maintenance.

How to Calibrate

Rinse the probe tip in RO/DI water and blot it dry (do not rub) before each buffer. Let the sachets sit near tank temperature, then follow the ReefBeat prompts: pH 7.00 first, rinse, then pH 10.00. Recalibrate about monthly, or any time readings look suspect.

Specifications

Complete Your Setup

• ReefSense pH & Temperature Probe (the probe this pack calibrates)
• ReefControl Pro or ReefControl Lite controllers, or the Pro Deluxe Kit
• Single Probe Holder and Magnetic 4-Probe Holder
• Browse all saltwater supplies

FAQ

How often should I calibrate? Roughly monthly for a reef, and whenever a reading drifts from your reference test kit.

Can I reuse a sachet? No. Each is single-use so the buffer is always fresh and uncontaminated.

Does it work with other brands' probes? The fluid is a standard pH buffer, but the volumes and app workflow are designed for ReefSense probes.