Don't let the model number fool you, the SC57 is the top-of-the-line Fieldpiece clamp meter. Like all Fieldpiece tools, the SC57 is made specifically for HVACR professionals, and is packed with the measurements HVACR pros use everyday. Plus it's wireless. That means that any measurement you can take with a Fieldpiece accessory head, can be sent directly to the SC57 from anywhere on the jobsite. So tests like temperature splits can be sent to a tech while they are at the condenser making adjustments.