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Extech RF40 Information The Extech RF40 is a portable battery coolant/glycol refractometer that measures the freeze point of automotive coolants (propylene glycol and ethylene glycol) from 32°F to -60°F. It also indicates the specific gravity of battery acid and provides a quick reference of battery charge condition. Specifications

Extech 380193 Information the information about the Extech 380193 Passive Component LCR Meter: Introduction The Extech 380193 is a passive component LCR meter that measures inductance, capacitance, and resistance. It also measures secondary parameters such as quality factor (Q), dissipation factor (DF), and series resistance (ESR). The meter has a built-in test fixture for quick and easy measurements, or you can use external test leads. It also features a 20,000/10,000-count, backlit dual display, an averaging function, and MAX/MIN peak hold. The Extech 380193 is a versatile and affordable tool that is ideal for a variety of applications, including manufacturing, quality control, and electronics troubleshooting.