As first, because of the vast variety of types of equipment you can find, you have to remember to always choose based on your requirements and buy test equipment that would suit your operational necessities. What works for electrical testing does not work for thermal, for instance. Equipment can also differ according to the location of testing: testing in laboratory and testing on-site.
Then, regarding your business, you must do the maths and decide on how much you are willing to invest in equipment. Since precision is a must, and you most certainly want to provide the best for your client, it is advisable to invest in quality test equipment. When you have unreliable instruments, not only will you need more time to repeat the process, but it will also be costly. As they say: time is money.
To make sure you buy test equipment of quality, look for test and measurement equipment guide for buying online and for products from reliable brands. Such products are durable and come with full warranty, which means technical support is also included.
Because of the role of technology, test equipment designs often have additional features depending on the type, so you will have to consider the time needed for your employees to be trained for proper operating. Certain features require upgrading to follow the pace of technological novelties and may be more time-consuming to be mastered. Trustworthy suppliers have training listed as part of their support policy.