
HORIBA 9300-10D comparison: matching meters and buy candidates
When you look up the 9300-10D, several listings share the same model number, and it is easy to lose track of which one to pick.
This electrode has to be chosen with the meter it will connect to. A similar-looking electrode is not enough.
This article compares 9300-10D candidates confirmed on Amazon and sums up how to pick a unit that works with your meter.
Who the 9300-10D is for
The 9300-10D is a HORIBA ORP electrode. It is used to measure oxidation-reduction state in water and similar samples.
It is a waterproof design and also has a built-in temperature sensor. The operating temperature range is 0–60°C.
Electrode length is 150mm and the outer diameter is 12mm. If you are buying a replacement, confirm the combination with the meter you use now.
Picks by condition
- If you want to replace a 9300-10D, the same model number is the pick.
- If you want a waterproof design, the 9300-10D is the pick.
- If you want a built-in temperature sensor, the 9300-10D is the pick.
- If you use a HORIBA meter, confirm the matching information.
- If you are looking at a different spec, the 9301-10D is also a comparison target.
The 9301-10D is a different spec from the 9300-10D. If you change to another model number, confirm the matching meter as well.
Compare the 9300-10D
On Amazon, more than one listing is sold as 9300-10D. Look at the specs on the page, not only the product name.
| Comparison item | Horiba Instruments 9300-10D | Todai 9300-10D | HORIBA 9300-10D |
|---|---|---|---|
| Brand | Horiba Instruments | Todai | HORIBA |
| Waterproof design | ○ | ○ | Not listed |
| Built-in temperature sensor | ○ | Not listed | Not listed |
| Model number shown | ○ | ○ | ○ |
B08R3RG1P2 lets you confirm the built-in temperature sensor in the product information. It is the pick if you want to check the specs in detail.
B00N3MU2KK is listed as a waterproof 9300-10D electrode. B00DESJSQ2 also shows the maker part number 3014046710 besides 9300-10D.
If you want the genuine part
If you are replacing a 9300-10D, do not decide by maker name alone. Confirm a listing whose model number matches.
If you want a HORIBA unit, confirm that the product page shows 9300-10D. Look at the model number and the specs together.
Matching to confirm before you buy
For the 9300-10D, matching with the meter is required. The connection type is another point to check before purchase.
The 9300-10D is specified around a BNC connection. Confirm the combination with the meter you use now.
Changing to another model number can change the spec. If you change to the 9301-10D or similar, confirm the matching meter as well.
Amazon purchase candidates
When you search on Amazon, first confirm that the product name states 9300-10D. Check the specs on the product page as well.
If you want a Horiba Instruments listing, do not decide by the product name alone. Confirm the model number, and look at the seller information as well.
| Product | Positioning | Price | Stock |
|---|---|---|---|
| Horiba Instruments 9300-10D | 9300-10D | Confirm | Confirm |
| Todai 9300-10D | 9300-10D | Confirm | Confirm |
| HORIBA 9300-10D | 9300-10D | Confirm | Confirm |
Price and availability change, so confirm them on the product page at purchase time.
Todai 9300-10D
This listing is shown as a waterproof 9300-10D electrode. It is one purchase candidate if you are looking for the same model number.
The product information lists it as general research equipment, quantity 1. Confirm the use before you pick it.
HORIBA 9300-10D
This listing shows maker part number 3014046710 in addition to 9300-10D. It fits people who search by the HORIBA model number.
The product information for this listing does not clearly state waterproof design or a built-in temperature sensor. If you need those specs, confirm the product page before you pick it.

Q&A
Which one has a built-in temperature sensor?
If a built-in temperature sensor is the condition, the Horiba Instruments 9300-10D is the pick. The product information states a built-in temperature sensor.
Which listing makes the specs easy to confirm?
If you want to confirm the specs before you pick, the Horiba Instruments 9300-10D is the pick. You can confirm waterproof design, operating temperature range, and a built-in temperature sensor.
If you buy a 9300-10D
If you are replacing a 9300-10D you use now, the Horiba Instruments 9300-10D is the pick. You can also confirm specs such as the built-in temperature sensor.
If you want a lower-price candidate, the Todai 9300-10D is also a purchase target. The model number is 9300-10D, so confirm the product-page information and pick from there.
If you want the HORIBA label and maker part number 3014046710, the HORIBA 9300-10D is a candidate. If you change to another model number, confirm matching with the meter as well.

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