Milwaukee 4.01pH Buffer Calibration Solution, 230 ml
SKU: CV-MA9004
- The Milwaukee 4.01pH Buffer is a 230mL solution for calibrating pH meters, probes, and testers.
- It is made for pH meters, pens, probes, monitors, and controllers that use a 4.01 calibration point.
- The ±0.01 pH accuracy helps support repeatable calibration for low-range pH meter readings.
- The 230mL bottle gives more solution for repeat use than single packets used for one calibration.
Milwaukee
Milwaukee Instruments is a leading European maker of digital electrochemistry devices.
pH 4.01 Calibration Buffer Solution for pH Probes
The Milwaukee 4.01pH Buffer Calibration Solution 230ml is a ready-to-use pH 4.01 buffer for pH meters, probes, testers, monitors, and controllers. It is used during calibration when the meter requires a 4.01 pH reference point.
This 230mL bottle is useful for hobbyists, stores, and service techs who calibrate pH equipment often. The solution is rated at ±0.01 pH accuracy, helping support steady calibration when used with clean probes and proper meter instructions.
Key Features:
- pH 4.01 calibration buffer solution for pH meters and probes.
- 230mL bottle format for repeat calibration use.
- Standard ±0.01 pH accuracy for repeatable calibration.
- Ready-to-use liquid avoids powder mixing.
- Used with pH testers, pens, monitors, controllers, and probes.
- Helps verify or adjust pH readings during routine calibration.
- Suitable for aquarium, service, and general pH meter maintenance.
Ideal For:
- Aquarium hobbyists calibrating pH meters that require a 4.01 buffer point.
- Service techs and stores that calibrate pH probes more than once or twice.
- Controller users maintaining pH probes for reef tanks, freshwater systems, or dosing setups.
Pro Tips:
- Use clean solution each time. Pour only what you need into a clean cup. Do not dip a dirty probe into the main bottle.
- Do not return used buffer. Used solution can be contaminated by tank water or other buffers. Discard it after calibration.
- Rinse between buffers. Rinse the probe with clean water before moving between 4.01 and 7.01 solutions. This helps avoid cross-contamination.
- Let the reading settle. Give the probe time to stabilize before confirming the calibration point.
- Store the bottle closed. Keep the cap tight and store the bottle away from heat and direct light.
What's Included:
- 1 Milwaukee 4.01pH Buffer Calibration Solution 230mL bottle
Specifications:
- Brand: Milwaukee
- Product Name: Milwaukee 4.01pH Buffer Calibration Solution 230ml
- SKU: CV-MA9004
- Product Type: pH calibration buffer solution
- pH Value: 4.01
- Accuracy: Standard ±0.01 pH
- Bottle Volume: 230mL
- Format: Ready-to-use liquid bottle
- Use: pH meter, tester, probe, monitor, and controller calibration
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Instructions:
- Pour a small amount of 4.01pH buffer into a clean calibration cup.
- Rinse the pH probe or tester tip with clean water before calibration.
- Place the probe or tester tip into the 4.01pH buffer.
- Wait for the reading to stabilize.
- Complete the calibration step according to the meter, monitor, or controller instructions.
- Rinse the probe after calibration before placing it into another buffer or back into the aquarium system.
- Discard used buffer. Do not pour it back into the bottle.
- Close the bottle tightly after use and store it away from heat and direct light.
- Calibrate monthly, or as directed by the meter or controller manufacturer.