Agilent HP 34420A nanoVolt/micro-ohm meter, 7.5 digit
Agilent HP 34420A nanoVolt/micro-ohm meter, 7.5 digit. 
Product Overview
The Agilent 34420A is a Micro Ohmmeter from Agilent. Micro ohmmeters take low-resistance measurements of a device’s electrical resistance, or resistance to an electric current. Micro ohmmeters collect information in ohms, the measure of electrical resistance. With a micro ohmmeter, engineers can document, analyze, and log the contact resistance of devices, such as rail/pipeline bonds, aircraft frame bonds, circuit breakers, and switch breakers.
Features:
- 7 ½ digits resolution
 - 100 pV / 100 nOhm sensitivity
 - 1.3 nVrms / 8 nVpp noise performance
 - Built-in low noise 2 channel scanners
 - 3 low power, dry circuit testing built-in resistance functions
 - Direct SPRT, RTD, Thermistor, and Thermocouple measurements
 - SCPI and Keithley 181 languages