• A multimeter is handy for diagnosing your electronics.multimeter image by dinostock from Fotolia.com
  
  The Fluke 87 is a multimeter used at home, in laboratories or in the field. A basic multimeter measures voltage, resistance and current. The Fluke 87 also measures temperature, frequency and amps. Multimeters are often used to troubleshoot electronic problems by individually testing which components no longer function. The Fluke 87 has a wide variety of applications.
  
  

Display

• The Fluke 87 has a digital display that updates every second. The backlight for the display remains on for one minute.
  
  

Size and Weight

• The Fluke 87 measures 1.25 x 3.41 x 7.35 inches and weighs 12.5 oz. The mulitimeter comes with a holster that also acts as a stand for the Fluke 87. This holster increases the size of the tool to 2.06 x 3.86 x 7.93 inches and the weight to 22.0 oz.
  
  

Temperature and Humidity

• The Fluke 87 operates at minus-4 to 130 degrees Fahrenheit. It should be stored at minus-40 to 160 degrees. The multimeter functions in humidity from 0 to 90 percent, but should be stored in 0 to 70 percent humidity.
  
  

Battery

• The Fluke 87 takes a nine-volt battery. This battery provides up to 400 hours of typical use. The battery can be changed without losing stored information.
  
  

Functions

• The Fluke 87 measures voltage, current, resistance, conductance, capacitance, frequency, duty cycle, pulse width and temperature. It also tests diodes. The Fluke 87 has a button to press to record the minimum and maximum measurements. The Touch-Hold feature of the Fluke 87 allows you to record a reading. When the next stable reading occurs, the meter alerts you with a beep.
  
  

Voltage

• The Fluke 87 measures a maximum of 1000 volts for both alternating current (AC) and direct current (DC). The maximum resolution when measuring voltage is 0.1 millivolts. The accuracy is plus or minus 0.05 percent for DC readings and plus or minus 0.7 percent for AC readings.
  
  

Current

• The Fluke 87 measures a maximum current of 10 amps for both AC and DC. The maximum resolution when measuring current is 0.1 microamps. The accuracy is plus or minus 0.2 percent for DC readings and plus or minus 1.0 percent for AC readings.
  
  

Resistance

• The Fluke 87 measures a maximum of 40 megawatts of resistance with an accuracy of plus or minus 0.2 percent. The maximum resolution for resistance readings is 0.1 watts.
  
  

Capacitance and Frequency

• The Fluke 87 has a range of 1 nanofarad to 5 microfarads for capacitance readings. The range when measuring frequency is 0.5 Hertz to 200 kiloHertz.