?? Basic Information

Model: PCI‑4070 (NI FlexDMM)

Type: PCI bus 6.5-digit high-precision DMM + 1.8MS/s isolated digitizer

Status: In stock (2026), original factory regular supply

Product Number: 778275‑01

Bus: PCI 32-bit, 5V, half-length card

Application: Laboratory high-precision, semiconductor testing, power / ripple analysis, high-voltage isolation measurement

?? Core DMM Function (6.5 digits, ±300V isolation)

1) DC Voltage

Range: ±100 mV ~ ±300 V

Accuracy: ±0.0025% reading (25 ppm)

Resolution: 6.5 digits (up to 1 µV) NI

2) AC Voltage (True RMS)

Range: 100 mVrms ~ 300 Vrms

Frequency: 20 Hz ~ 100 kHz

Accuracy: ±0.04% reading NI

3) DC/AC Current

DC: ±100 µA ~ ±1 A

AC: 100 µArms ~ 1 Arms

Accuracy: ±0.01% (DC)/ ±0.05% (AC)

4) Resistance (2-wire / 4-wire)

2-wire: 100 Ω ~ 100 MΩ

4-wire: 100 Ω ~ 1 MΩ

Resolution: 6.5 digits NI

5) Others

Diode, frequency / period (1 Hz ~ 100 kHz), temperature (thermocouple / RTD)

6) DMM Speed

6.5 digits: 100 times / second

4.5 digits: 10,000 times / second download.ni.com

⚡ Exclusive Features: 1.8 MS/s Isolated Digital Converter

Sampling Rate: Up to 1.8 MS/s (1,800,000 samples / second)

Isolation: ±300 VDC/Vrms isolation (safe for measuring high voltage waveforms)

Bandwidth: 500 kHz (analog bandwidth)

Usage: Ripple / transient capture, power quality analysis, sensor waveform acquisition NI

?? Interface and Mechanical

Connectors: 4 safety banana sockets (V/Ω, mA, A, ground)

Size: 175 × 108 mm (half-length PCI)

Temperature: 0 ℃ ~ +40 ℃

Power Consumption: +5 V @ 0.25 A (typical) docs-be.ni.com

?? Software Compatibility

Drivers: NI‑DAQmx, NI‑DMM, FlexDMM

Development: LabVIEW, C/C++, C#, Python

System: Windows 7/10/11

⚔️ PCI‑4065 vs PCI‑4070 (Key Upgrade)

Bits: 4065 = 6.5 digits; 4070 = 6.5 digits (slightly higher accuracy, 25 ppm)

Isolation: Both are ±300 V

DMM Speed: 4065 = 3,000 times / second; 4070 = 10,000 times / second (3 times faster)

Digital Converter: 4065 = None; 4070 = Built-in 1.8 MS/s (core advantage)

Price: 4065 = Mid-to-high end; 4070 = High-end (accuracy + waveform acquisition in one step)