Frequently Asked Questions

Orders may be placed through our online shop or by emailing a purchase order to orders@hydrocheck.com. If you need pricing before ordering, request a quote through our Contact/Quote page or email orders@hydrocheck.com.

We accept major credit cards through our secure online checkout or secure payment links, as well as ACH payments. Established customers may also purchase using approved payment terms. To request a secure credit-card payment link or learn more about applying for payment terms, email orders@hydrocheck.com.

For security, credit card information is not accepted by phone or email.

Yes. Purchase orders may be emailed to orders@hydrocheck.com. Customers with approved credit terms may order on account. New customers may submit a purchase order, but payment is required before shipment unless credit terms have been established.

To apply for credit terms, download and complete our Credit Application, then email the completed form to orders@hydrocheck.com. Credit terms are subject to approval. Orders must be prepaid until credit terms have been approved.

Yes. Use our Contact/Quote form or email orders@hydrocheck.com with the products and quantities you need.

Applicable sales tax is collected as required. California customers purchasing products for resale may provide a valid California resale certificate. For questions or to submit a resale certificate, email orders@hydrocheck.com.

Many standard products can ship within 1–2 business days. Lead times vary by product, quantity, configuration, and current inventory. We will confirm availability and expected ship date with your order.

Yes. International orders generally require payment in advance. Import duties, taxes, brokerage fees, and other destination charges are the customer’s responsibility. See Global Distribution for regional resources.

Contact orders@hydrocheck.com promptly with your order or PO information and a description of the issue. We may request photos to help assess the problem.

Contact orders@hydrocheck.com before returning equipment so we can review your request and provide the appropriate instructions. Refer to the published Return/Refund Policy.

Yes. Hydro-Check provides in-house evaluation, calibration, and repair services for supported Hydro-Check products. Contact us before sending equipment so we can provide the appropriate return instructions.

Hydro-Check products are covered by a two-year limited manufacturer warranty against defects in materials and workmanship, subject to the terms of our published warranty. See Warranty Information for complete details.

We can help you select an instrument based on your water treatment process, measurement range, sensor needs, and alarm, relay, or control requirements. Our Application page helps you compare instrument coverage and common uses.

Conductivity measures how readily water conducts electrical current; resistivity measures how strongly it resists that current. They are inversely related: lower conductivity means higher resistivity.

Read the measurement guide →

Manuals, wiring diagrams, and installation sheets are available in Manuals & Downloads.

Visit 414 Monitor Help and choose your model for setup, troubleshooting, and documentation.

Visit Hy-Lite Help for installation guidance, indicator information, troubleshooting, and product documents.

Visit Product Support for help with Remote Alarm and Remote Relay modules, sensors, calibration modules, accessories, and other Hydro-Check products.

Yes. Customer support is available Monday–Friday, 5:00 AM–1:00 PM PT (8:00 AM–4:00 PM ET). Call (760) 930-1924 for technical or application assistance, or use our Contact/Quote form.