If the photograph is clicked, it grows.

Keithley 2701 7710 20ch Data Acquisition System
SOLD OUT sold
mul872

6-1/2Digits TrueRMS 2-slot DMM:DCV,DCI,ACV,ACI,OHM(2W,4W),TEMP,Frequency Math(dBm,scale )
DCV:100m,1,10,100,1000V res0.1uV acc30ppm/Year OHM:1,10,100-100M acc100ppm/year LowVolt:20mV Cont:1mA DCI:20m,100,1,3A acc 500ppm/y
Temp:Therm(J,K,N,T,E,R,S,B) 4W-RTD(PT100,D100,F100,PT385,PT3916) Termister(2.2K,5K,10K) ACV:100m,1,10,100,750V acc 0.05%/90days 3Hz-300KHz
ACI:1,3A acc0.1% Freq:3Hz-500KHz
RS232C Ethernet 10/100baseT
Module
7710 20ch Thermocouple
CHANNELS: 20ch 2W 10ch 4W
RELAY TYPE: Solid State Opto-Coupled FET.
ACTUATION TIME: <0.5ms (100mA load)
MAXIMUM SIGNAL LEVEL: Any channel to any channel (1–20):
60VDC or 42V rms, 100mA switched, 6W, 4.2VA maximum.
Common Mode Voltage : 300VDC or 300Vrms (425V peak)
maximum between any terminal and chassis.
RELAY LIFE (typ): >105
operational hours max. signal level or
1010 operations (guaranteed by design).
RELAY DRIVE CURRENT: 6mA per channel continuous, 25mA
during initial pulse.
Channel RESISTANCE (per conductor): <5W.
CONTACT POTENTIAL: <1µV per pair.