About Precision Diagnostic InstrumentsDM-918, Economical Multimeter

Since 1995, Precision Diagnostic Instruments has been manufacturing quality test equipment designed specifically for HVAC/R, Automotive and Electronics service technicians.

Our products have always stood out in a competitive field of manufacturers for two reasons.

First, we make quality products that are guaranteed to be reliable, durable and precise. PDI products are designed and built to exacting specifications. We know that the quality of a tool is not defined by the color of the tool, a pretty package or the name on the outside of a box. Tool quality starts on the design table and doesn't stop when a technician buys the tool. Tool quality is defined by the work the tool does and the years it does that work. Every product that bears the PDI logo is a product that every one of us at PDI would put our name on personally.

Second, we bring our tools to market at an honest and fair price that gives the user a value in tools that is unusual in today's market. PDI does not want our customers to pay for our name. We want our customers to pay for our quality and our functionality. This does not include outlandish advertising campaigns or unnecessary "give-away" programs to try to get you to buy our products. If you want to play the Lottery, you can buy a Lottery ticket. However, if you have to go to work and want to get the job done right the first time, we have the tools you need.