How do i use this? i think my hanna orp meter was dry for too long.

If you haven't soaked it in the storage solution definitely do that. Fill the meters cap with the solution and place it in there. You always want to have the solution in the cap

Do the bottles have a lot number and expiration date imprinted?

Yes, they have an expiration date printed- and amazon ask for them before they are allowed to be sent into the fba program.

What ph does this solution keep a ph/ec/tds meter's electrodes? should one be able to use their meter, immediately from the storage solution?

The ph storage solution is right around a 4 ph. I always re-calibrate with 4.01 & 7.01 after removing from the storage solution.

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Hanna Instruments HI 70300M Storage Solution for pH/ORP Electrodes, 230mL Bottle

Hanna Instruments HI 70300M Storage Solution for pH/ORP Electrodes, 230mL Bottle

Product ID: 654515408

Details

Brand
Hanna
Item Form
Liquid
Item Volume
230 ml
Item Weight
8 ounces
Package Information
Bottle

⏳Prolongs electrode lifespan

🧪230mL precision volume

⚗️Odorless & colorless purity

€ 51.76

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Description

⚡ Keep your electrodes fresh, accurate, and ready to perform—because precision never sleeps!

PURE SAFE FORMULA - Colorless, odorless solution that maintains electrode integrity without contamination.
GENEROUS 230 M L BOTTLE - Ample volume designed for repeated use, minimizing downtime and reordering frequency.
OPTIMAL ELECTRODE CARE - Keeps pH/ORP sensors perfectly hydrated to prevent clogging and ensure accuracy.
HIGHLY RATED RELIABLE - 4.6-star average from 176 users who swear by its effectiveness and durability.
TRUSTED INDUSTRY STANDARD - Manufactured by Hanna Instruments, ISO 9001 certified for consistent quality.

The HI 70300M Storage Solution by Hanna Instruments is a 230mL bottle of odorless, colorless liquid designed specifically to maintain pH and ORP electrodes. It preserves the moisture of the glass bulb and junction, reducing clogging and extending electrode life. Trusted by professionals and backed by ISO 9001 standards, this solution ensures your measurement tools stay accurate and reliable.

Specifications

ASIN	B002NX0W2I
Best Sellers Rank	#154,468 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #42 in Electrolyte Solutions
Brand Name	Hanna Instruments
Container Type	Bottle
Customer Reviews	4.6 4.6 out of 5 stars (178)
Global Trade Identification Number	00860012631063
Included Components	One Item
Item Form	Liquid
Item Weight	8 ounces
Manufacturer	Hanna Instruments
Model Number	5444
Part Number	HI 70300M
UPC	094713546412
Unit Count	1 Count
Volume	230 ml

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 51.76

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Spain.

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TrustScore 4.5 | 7,300+ reviews

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