The Pico Technology CM3 is a 3-channel USB/Ethernet current data logger. It is ideal for recording data from both, single-phase and three-phase AC supplies. The USB and Ethernet interfaces allow the logger to be used as a USB-only device or as a USB-powered device with Ethernet interface, or as a Power-over-Ethernet (PoE) device. Using the Ethernet interface, the PicoLog CM3 can be located anywhere on a LAN or on the internet. This logger includes a flexible, expandable Picolog software and is also supplied with three AC current clamps. It is used in building machinery.

High accuracy with 24-bit resolution
Suitable for single or three-phase AC currents
Include three 200 A AC current clamps
Can also be used to measure AC RMS voltage
Up to 20 units can be run on a single PC Connected via Ethernet (PoE compatible) or USB
Free PicoLog 6 Cloud® software
Free PicoLog 6 Cloud account
Compatible with Windows, macOS, Linux and Raspberry Pi OS

Mains current monitoring
Three-phase load balancing
Long-term energy use recording

IEC1010-1 (1995)
EN61010-1 (2001)
Category II 600V
Category III 300 V

Now with PicoLog Cloud®

Building on the proven design of PicoLog 6, PicoLog Cloud is a free upgrade that introduces many great new features that expand how your Pico data logger can be used.

PicoLog Cloud allows all current Pico data loggers and real-time scopes to capture data either direct to a local memory drive or stream the captured data to a secure online Cloud store, and can then be shared via a link to any browser on a PC, phone or tablet, anywhere in the world. In addition, an API can be used that allows live capture data to be transferred from the Cloud to a 3rd party database or program.