Founded in 2004, Global Test Supply is a world-class provider of instrumentation for test and measurement applications. Global Test Supply conveniently accepts orders both online and offline. Our in-house technical specialists help customers choose the most advanced equipment in the marketplace based on their needs, budget and application. Our technical sales team works hard to exceed customer expectations by providing a traditional brick and mortar sales experience on a web-based platform.
Written by the business, not verified by us.Global Test Supply (globaltestsupply.com) has a 3.8 out of 5 rating on OK.one, based on 100 user reviews collected here. It is listed under Public & Local Services and its reputation is mixed. 21% of reviews are 1 star, a relatively high share; The business has replied to 100% of negative reviews; Reviews mostly discuss Product, Price, Quality. Last updated 2026-08-12.
Reviewers had a great experience with this company. Customers frequently praise the exceptionally reasonable prices and the reliable high quality of the specialized tools and products they purchased. People consistently find the online ordering process straightforward, noting that items are securely packaged and arrive promptly. However, some people mentioned that shipments can occasionally face unexpected backorders and extended delivery delays over several weeks. Some reviewers were not happy with receiving items featuring incompatible foreign power specifications or experiencing communication issues with support. A few consumers also noted frustration regarding unexpected extra delivery charges or persistent difficulties when trying to resolve return requests.
Auto-generated from all reviews of this business. For reference only.Brother is leaking and I use it in the attic. He destroyed somebody’s ceiling. I’m responsible for the expenses of my company. Product is still leaking.
We’re very sorry to hear that you’re experiencing an issue with your product, Warren. We’ve tried reaching out several times so we can help resolve it with you. Please contact us at your earliest convenience.
Got what I paid for. My meter wasn't cheap, but the quality is top notch.
Love to hear that you're satisfied with your meter. Thank you for sharing your experience with us, Aaron.
I purchased an item and it did not work for me so I have been trying for over one month to return it and they just won't work with me.i keep getting the run around if I could give them zero Stars I would I will never work with this company again.
We apologize for the inconvenience you’ve experienced, Robert. In order to process the return, the manufacturer required additional information, but unfortunately, we did not receive the responses needed to move forward with the authorization. We truly wanted to help resolve this matter and are still willing to assist if you would like to continue the process. Please reach back out to our support team with the requested information so we can work toward a resolution.
The experience was excellent, but I can no longer make purchases because I can't access my account. It was canceled because I'm from Lima, Peru, but I make purchases for delivery in Miami, Florida, USA. I want to continue working with you by purchasing pH, conductivity, O2, turbidity, and other solutions. Please let me know how I can continue making purchases without a registered account.
Thank you for your kind feedback, Januusz. We truly appreciate your interest in continuing to work with us. Our customer service team will reach out to you to provide more details and assist further. In the meantime, you’re still very welcome to place orders directly through our website. Don’t hesitate to reach out if you need help placing an order or have any additional questions.
They try to sell products they dont have, after three months of asking where my items were i asked them to cancel and they promptly sent me one item on the order. You will regret dealing with global test supply
We apologize for the delay and inconvenience you experienced with your order. Unfortunately, the manufacturer notified us after the order was placed that part of the order had been discontinued, which contributed to the delay. We also understand your cancellation request was not processed in time before one item was shipped. To help resolve the matter, we have offered a return authorization so the shipped item can be returned for a refund. If there is anything else we can do, please let us know.
Thankful I was able to get namebrand items at such a reasonable price. Quote was easy to obtain and shipping updates kept us on schedule with testing services at our laboratory. Payment processing was a breeze. Thank you for your assistance. I look forward to continuing working with Global Test Supply in the future.
Thank you for the great review, Dr. Stewart! We’re glad to hear you found great value in the products and that the quoting, payment, and shipping process all went smoothly for you. It’s nice to know everything stayed on track for your laboratory testing needs.
I appreciate that Global Test Supply offers reasonably priced, high-quality products, and their customer service representatives were helpful to the extent possible, but was dissatisfied with the shipping process and level of communication provided regarding orders. My order ran into a number of shipping issues and delays, during which time I did not receive any status updates from GTS. I had to initiate all communications and follow-ups, and issues took a long time to resolve. It took over a month to resolve an issue with my initial order -- to fix the issue, I was instructed to cancel and resubmit my original order, but the prices of the items I was purchasing had since increased by a total of ~$200. GTS did not honor the original prices I had placed the first order under. After placing the order again, shipping was estimated to be ~1 week. It took another month for the order to arrive due to stocking issues that I was not made aware of until I followed up with GTS.
Thank you for your detailed feedback. We’re glad to hear you were satisfied with our products and the support from our team, but we’re sorry for the delays and gaps in communication you experienced. We understand the importance of timely updates and accurate lead times, and we regret that this was not your experience. Your feedback has been shared internally as we continue working to improve our processes and communication. We appreciate you taking the time to share your experience.
Thank you for taking the time to leave us a review, Ainslie.
Global Test Supply made it easy to find and order what I needed. I recently refurbished a 40-year old Snap-On AC Manifold Gauge set. The old gauges were cracked and leaking oil, and were calibrated for R12. I found an affordable pair of Mastercool 3.5" gauges and protective boots and ordered them online. The checkout and payment process was quick and easy (Paypal), and GTS kept me updated on the progress of the order throughout. I will definitely consider Global Test Supply for my future AC needs.
Thank you for sharing your experience, Timothy! It’s great to hear that you were able to successfully refurbish your 40-year-old Snap-On AC manifold gauge set and find the right replacement gauges and accessories with us. We truly appreciate your support and look forward to helping with your future AC needs.
Order not shipped within reasonable amount of time. 2 months past promised date. Only shipped when I tried to cancel.
We sincerely apologize for the delay with your order, Pamela. An unforeseen issue on the manufacturer’s side prevented us from receiving the part within the expected timeframe. We are currently reviewing this with them to ensure that lead times are met moving forward. Thank you for your patience and understanding.
IT TAKES TOO LONG TO CALIBRATE THE EQUIPMENTABOUT A MONTH FROM THE TIME I SEND IT UNTIL I GET IT BACK
We’re sorry to hear about your experience, Erasto. Calibration turnaround times can vary depending on the equipment and workload, but we understand how important timely service is and apologize for the delay you encountered. We’re always working to improve our processes and appreciate you bringing this to our attention. If there’s anything we can assist you with, please don’t hesitate to reach out—we’d be happy to help.
Communicative shipping process.
Thank you for your feedback, Rob! We look forward to working with you again.
Im still waiting for answer about the stand i need for the cordsge meter i order
We're sorry for the delay and appreciate your patience, Juan. We sent you an email on March 16 with information about the stand for your cordage meter. We’re currently experiencing a slight delay in responses due to a backlog. Please feel free to reply to that email if you have any further questions.
That's great, Kevin! We appreciate you sharing your feedback.
Got my caliper and it was a real one. And at a good price
Thank you for sharing your feedback with us, Alex. We are a proud distributor of many quality brands and are glad you were able to find what you needed.
everything went very well. first time customer, very happy, thanks!!
Love to hear it! Thank you for choosing us, Mark, we look forward to working with you again.
Still not happy. Still did not receive my missing parts to my chimney sweep. Now I'm supposed to send pictures of what I got so you can see what I didn't get after I gave you a detailed inventory and an email of what I did not receive from what I was supposed to receive. Why is this my responsibility? As a customer I feel like I should have had better service. I am in the customer service industry and I never treat my customers this way. Emailed three times called twice. All they said is sent pictures. I don't understand what's sending pictures would do.. Even ask for a complete refund and I would send back the few pieces I didn't get. Still nothing
Thank you for your feedback, and we’re sorry for the inconvenience caused, Vincent. Requesting photos is part of our standard process to confirm missing items, but we understand this added an extra step. A replacement kit has now been arranged at no charge to resolve the issue. If you need anything further, please feel free to contact us directly.
not everything is in stock, items may be delivered more than a month out
Thank you for your feedback, Bruce. We determine our stocked items based on both sales trends and product availability. If you need assistance with anything at all, please don’t hesitate to reach out, we’re always happy to help. Wishing you a wonderful day!
Congratulations, Troy! Enjoy your winnings.
Ordered a product, received the product.
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