Socket Tester Outlet Receptacle Tester

A socket tester plugs into an AC outlet and checks the wiring in seconds — it detects correct wiring, reverse polarity, open ground and other faults.

About 10-30 seconds per outlet: plug it in, read the LED pattern, and compare it with the legend printed on the tester.

Yes, the LED indicator pattern shows whether the ground is properly connected, which is one of the most common wiring faults.

Homeowners, inspectors and electricians all use it for a fast and safe way to verify outlet wiring before trusting a socket.

We make the socket tester series in plug versions for the EU standard (230V) and the US standard (120V), so you can stock the version that matches each market. The versions differ in plug type and rated voltage, and each one checks wiring faults such as open ground, open neutral, open hot and reversed wiring for its own standard. For the exact plug and voltage coverage of each version, check the specifications table on the product page.

Yes. As the factory in Wenzhou, we can print your brand and artwork on the socket tester series under OEM. Packaging for this line is available as individual retail boxes or as bulk pack without retail boxes for distributors. Send us your logo and packaging design and we will confirm the printing and packing options for your order.

Yes, we can mix the EU-standard and US-standard socket tester versions in a single container so you can cover both plug standards in one shipment. Each version in the line has its own minimum order quantity. Send us your target quantities and we will confirm the mix and per-version MOQ in the quote.

The socket tester series in the EU and US plug versions is CE and RoHS compliant, and CHINYOO is ISO 9001 certified. Our factory can send the certificates and test reports for the versions you are ordering. Ask for them together with your quote or samples and we will share the documents.

We serve both small trial orders and container-scale wholesale. Tell us the models and quantity you need, and our sales team will reply with pricing and lead time within 24 hours.

Yes. As a factory founded in 2008, we offer OEM/ODM services including custom labels, packaging and adjustable measuring ranges. Send us your specifications and we will handle the rest.

Our instruments are CE, RoHS and ISO 9001 compliant, and we can provide the relevant certificates on request.

Every instrument ships with a 12-month warranty. If a unit is defective, contact us and we will arrange a replacement or repair.

Orders ship from our factory in Wenzhou, and we can arrange FOB Wenzhou or FOB Ningbo, whichever suits your freight forwarder best. For sea freight we pack into cartons and pallets sized for a 20ft or 40ft container, and for small or urgent orders we ship by air or express. In-stock catalog models ship within 3 to 7 days after payment, while OEM orders with custom branding take 15 to 30 days depending on the work.

For bulk orders we work on T/T bank transfer with a 30% deposit to confirm production and the 70% balance before shipment. For larger amounts we also accept L/C at sight. For sample orders we take PayPal or full T/T in advance, so your first test order stays simple.

Yes, we encourage a sample order before you commit to bulk, so you can check build quality and calibration yourself. Samples are sent by express and usually arrive within 3 to 7 working days, and we refund the sample cost from your first bulk order of the same model. Just send us the models you want through the contact form or email, and we will quote the sample and ship on payment.

We provide a commercial invoice, packing list and certificate of origin with every shipment, plus CE and RoHS certificates and test reports when needed. Our export team prepares the documents to match your country's customs requirements and can amend them if your forwarder requests changes. The documents are sent by email ahead of the goods, so clearance at your port is not delayed.