PicoLog CM3

The PicoLog CM3 Current Data Logger is a compact, easy-to-use data logger for measuring the current consumption of buildings and machinery.

PicoLog CM3 Specifications

PicoLog CM3 current data logger specifications
Number of channels 3
Range (voltage input) 0 to 1 V AC RMS
Accuracy (voltage input)
< 200 mV RMS
< 1 V RMS

RMS noise 60 µV
Resolution 24 bit
Conversion time per enabled channel 720 ms
Voltage input 1 V RMS, 20 Hz to 1 kHz
Input connectors 4 mm sockets
Input impedance >1 MΩ, AC coupled
Overvoltage protection ±30 V DC
Operating environment
Temperature range
Humidity range

0 °C to 50 °C (20 °C to 28 °C for stated accuracy)
20% to 80% RH, non-condensing
Storage environment
Temperature range
Humidity range

–20 °C to +80 °C
5% to 95% RH, non-condensing
Physical properties
Dimensions 184 x 135 x 36 mm (approx 7.2 x 5.3 x 1.4 in)
PicoLog for Windows PicoLog data acquisition software can collect up to 1 million samples. Features include:
Multiple views — view data as a graph, spreadsheet or text
Parameter scaling — convert raw data into standard engineering units
Math functions — use mathematical equations to calculate additional parameters
Alarm limits — program an alert if a parameter goes out of a specified range
IP networking — transfer measurements via a LAN or over the internet
Operating systems supported — Microsoft Windows XP (SP3) to Windows 10. Not Windows RT.
PicoLog languages Full support for — English, Français, Deutsch
Menus and dialogs only for — Italiano, Español, Svenska
PicoLog and PicoSDK Available from www.picotech.com/downloads
Example code Available from Pico's GitHub organization page, github.com/picotech
Optional free software Drivers for Linux and macOS.
PC requirements
Minimum Processor, Memory, Free disk space: As required by the operating system
Operating system: Microsoft Windows 7, 8 or 10, 32-bit and 64-bit versions; macOS 10.9 (Mavericks) or later, 64-bit only; Linux*, 64-bit only
Ports: USB 1.1

* PicoLog 6 for Linux is distributed as an AppImage, so you can install it without superuser permissions: see appimage.org for further information. The software has been tested on Red Hat, OpenSUSE and Ubuntu.

Documentation languages
User's guide
Programmer’s guide
Installation guide
English, Français, Deutsch, Italiano, Español, 中文
English, Français, Deutsch, Italiano, Español, Svenska, Nederlandse, Dansk
Additional hardware (supplied) USB 2.0 cable, Ethernet cable, user manuals, software CD-ROM
PC interface USB 2.0 (USB 1.1 compatible) or Ethernet
Power requirements Powered from USB port or Ethernet
Compliance European EMC and LVD standards
FCC Rules Part 15 Class A
RoHS compliant
Total satisfaction guarantee In the event that this product does not fully meet your requirements you can return it for an exchange or refund. To claim, the product must be returned in good condition within 14 days.
Warranty 5 years