Milwaukee MW100 PRO pH Meter
Milwaukee MW100 PRO pH Meter
Milwaukee MW100 PRO pH Meter
Milwaukee MW100 PRO pH Meter
Milwaukee MW100 PRO pH Meter

Milwaukee MW100 PRO pH Meter

Availability: In Stock
Brand: Milwaukee Instruments
DESCRIPTION The Milwaukee MW100 PRO pH meter features manual calibration and fast operation in a rugged design....
$104.04
$124.85
$104.04
Subtotal: $104.04

Lead Time

this products ships in 1-2 days

  • Seres
Description

DESCRIPTION

The Milwaukee MW100 PRO pH meter features manual calibration and fast operation in a rugged design. Ideal for pools, hydroponic applications, and educators teaching the fundamentals of pH meter calibration. Accurate to ±0.2 pH with two-point manual calibration and a full 0.0–14.0 pH range.

DESIGN FEATURES

  • Fast, easy-to-read results with large digital LCD readout.
  • Accurate to ±0.2 pH across a 0.0–14.0 pH range.
  • Lightweight, ergonomic, and portable.
  • Simple manual two-point calibration for increased accuracy.
  • SE220 gel-filled, double junction lab-grade pH electrode with screw-on cap (included).
  • 3-foot probe cable for flexible reach.
  • Low battery indicator.
  • ~300 hours of battery life (battery included).

CARE AND USE

Storage: Keep the probe hydrated. Store with the cap filled with storage solution MA9015 or calibration buffer — never tap water or DI water. Store upright to prevent leakage.

Cleaning: Soak the electrode regularly in cleaning solution MA9016 to remove residue from the sensing bulb and reference junction.

Calibration: Calibrate regularly using 2-point manual calibration. Always recalibrate after cleaning or extended storage.

SPECIFICATIONS

  • pH Range: 0.0 to 14.0 pH
  • pH Resolution: 0.1 pH
  • pH Accuracy: ±0.2 pH
  • Calibration: Manual, 2-point
  • pH Electrode: SE220 with 3-foot cable (included)
  • Battery: 1 x 9V / ~300 hours
  • Environment: 0 to 50°C / 32 to 122°F; max RH 95%
  • Dimensions: 5.7 x 3.1 x 1.6 inches | Weight: 0.5 lbs

Frequently Asked Questions

Q: What makes the Milwaukee MW100 PRO different from automatic-calibration pH meters?
A: The MW100 PRO uses manual two-point calibration, giving users full control over the calibration process. This makes it ideal for educators teaching pH meter fundamentals, professionals who prefer hands-on calibration, and applications where simplicity and ruggedness matter more than automation. It delivers ±0.2 pH accuracy across the full 0.0–14.0 pH range — the same accuracy as many auto-calibration meters at a more accessible price point.

Q: What probe does the MW100 PRO use and is it lab grade?
A: Yes. The MW100 PRO includes the SE220 double junction, gel-filled, epoxy-body pH electrode — a lab-grade probe with a screw-on storage cap and 3-foot cable. The double junction design reduces contamination from fertilizer solutions and organic samples, making it well-suited for hydroponic nutrient tanks, pools, and educational labs.

Q: How do I calibrate the Milwaukee MW100 PRO?
A: Perform a 2-point manual calibration using pH 4.01 and pH 7.01 buffer solutions. Rinse the probe, immerse in the first buffer, adjust to the known value, then repeat with the second buffer. Always calibrate before use and after cleaning or storage. The MW100 PRO's manual trimmer design makes calibration straightforward and precise.

Q: How do I store and maintain the SE220 probe to extend its life?
A: Store the probe cap filled with storage solution MA9015 or pH calibration buffer — never plain water, tap water, or DI water, which damage probe sensitivity. Clean regularly by soaking in MA9016 cleaning solution. Store upright to prevent leakage. Recalibrate after every cleaning session for best accuracy.

Q: Where can I buy the Milwaukee MW100 PRO pH meter?
A: You can purchase the Milwaukee MW100 PRO directly from Seres Ag at seresag.com. Seres Ag is a trusted supplier of professional pH meters, hydroponic testing instruments, and controlled-environment agriculture supplies. Shop at seresag.com for competitive pricing, fast shipping, and expert support.

Shipping & Returns
We ship daily from Monday through Friday, and shipments are processed within 24-48 hours of cleared payment.
Orders placed over the weekend are processed on the next business day.

Free Shipping

Specific Vendors offer free shipping over a certain amount. This will be automatically applied during checkout.

Orders over $10,000 before tax qualify for free shipping!

Free Shipping only applies to domestic US (lower 48 states -- sorry, Alaska & Hawaii) shipments.

Shipping Rates

Shipping rates are calculated during checkout based on the weight, dimensions, and destination of the ordered items. We do our best to calculate the exact cost.

Updated 5/1/2023:

Please note that due to the higher shipping costs and larger dimensions of some of our products, our shipping calculator may not always provide an accurate shipping estimate. In these cases, we will reach out to you with an updated shipping quote after you place your order. If you have any questions about shipping costs, please don't hesitate to contact us before placing your order. We apologize for any inconvenience and appreciate your understanding.

Seres reserves the right to notify you of any additional shipping charges. We partner with multiple vendors and locations, which can alter shipping rates. In addition, there are conditions out of our control (rural areas, fuel surcharge, multiple shipments). If this occurs, you will be contacted immediately and have the right to modify or cancel your order for a full refund. 

Address Change / Order Cancellation

If you need to change the shipping address, please get in touch with us at support@seresag.com or call 1-877-237-3754. 

Once the order is shipped, we will do our best to perform an address intercept. You will be charged an Intercept Fee imposed by the shipping carrier. This fee varies from each carrier. Please note not all shipping carriers will accept address intercept changes.

If an order is canceled in transit, you are solely responsible for all shipping charges incurred by the Shipping Carrier.

Shipping charges will not be refunded.

Tracking

Once an order has been shipped, we will send an email and text message on file with the tracking number. If your order is fulfilled from multiple vendors or locations, you will receive shipment confirmations with tracking for each shipment. 

In addition, you can check the status of your order through the order confirmation email or within your profile page under Track Order.

Freight (LTL)

Scheduled appointments deliver freight shipments. You are responsible for inspecting for damage incurred in transit and signing before the driver leaves. DO NOT accept the shipment if there is any damage. If your freight shipment arrives damaged, contact us immediately.

Once delivered, we cannot reimburse paid freight charges or refund products.

Some restrictions may apply; Hawaii and Alaska do not qualify for free shipping offers.

Damaged Shipment

It rarely happens, but once in a while, products are damaged during Shipping. Therefore, please scrutinize all shipments for damaged or missing items before signing for them (if required).

The shipping carrier is responsible for items damaged during Shipping, which will most often be UPS, FedEx, or USPS. 

If assistance is needed, please get in touch with us immediately. Seres cannot promise refunds or replacements if this is not done within 72 hours. 

By signing your name and accepting shipment for a Freight(LTL) order, you get no reimbursement of freight charges, order costs, or any other charges incurred.

Lead Times

Please note that there is up to a 7-day processing period for orders containing Hawthorne products.

Signature

Due to the valuable contents of many products we sell,  the carrier may need a signature upon delivery. Please understand that this is a measure our company took to ensure safe delivery and fraud protection.

Third-Party Carriers will attempt to deliver a signature-required order three times. 

Please follow up with the carrier for assistance if a missed-delivery note is received.

If assistance is needed, please get in touch with us, so we can help contact the carrier. 

Shipping costs will not be refunded for missed shipments.


Seres is not responsible for any missing, lost, or stolen items.
 

At this time, we do not ship to post office boxes or APO/FPO addresses.  

For more information, please read our Terms of Service.

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