Dual Input True RMS AC Voltage/Current Datalogger with NIST Calibration Certificate, Reed Instruments, Mfr#: R5003-NIST$581.99+
REED Clamp-On Ground Resistance Tester, includes ISO Certificate, Reed Instruments, Mfr#: R5710-NIST$1,350.99+
REED Conductivity/TDS/Salinity Meter, includes ISO Certificate, Reed Instruments, Mfr#: R3530-NIST$350.99+