How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Yokogawa PH450G-A-U/UM pH / ORP Converter 100 to 240V AC

$469.99 USD

Sale Sold out

✓ 30-day returns on every item — return policy

ConditionSurplus - Untested MPNPH450G-A-U/UM Stock #0326-01151

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

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Used in water treatment, chemical processing, pharmaceutical manufacturing, and other process industries, the Yokogawa EXAxt450 is a 4-wire pH and ORP (oxidation-reduction potential) converter designed for accurate liquid analysis in demanding environments. This unit carries model number PH450G with suffix A-U and /UM designation, indicating FM-approved configuration with universal mounting kit for panel or wall installation.

The nameplate confirms supply voltage of 100 to 240V AC at 50/60 Hz with a maximum draw of 15VA. Output is 4 to 20mA with HART communication (mA1: +HART). Ambient temperature range is rated at -20 to +55 degrees C. Style code is S2.36. Serial number 92V302190 with date code 2019.03 indicates manufacture in March 2019 at Yokogawa Electric Corporation, Tokyo, Japan.

Certifications visible on the nameplate include FM Approved for NI CL I, DIV 2, GPS ABCD T6 at ambient temperatures from -20 to +55 degrees C, CSA/US (file 172608), CE marking, and KCC-REM-YHQ-EEN257. The enclosure is Type 4X rated per the nameplate. The front panel displays the EXAxt450 branding with LCD display window. The bottom of the enclosure features multiple cable entry ports with plugs installed. A stainless steel mounting bracket is visible in the photos. This unit is discontinued by Yokogawa and is no longer available through standard distribution channels.

Stock # 0326-1151

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.