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Yocto-Watt
  • Yocto-Watt
  • Yocto-Watt
  • Yocto-Watt
  • Yocto-Watt

Yocto-Watt

YWATTMK1
Yoctopuce
Rating 

This device is a watt-meter. It will allow you to monitor the power consumption of almost any electrical device, and includes a built-in data logger. You can add Ethernet, Wireless or GSM connectivity to this device.

118.940000
Tax excluded
3-5 days
Quantity
In stock

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Description

This device is a digital watt-meter allowing to monitor power consumption of electrical device. Its works with both AC and DC current. Regarding AC current, the device compute the real power consumption (not just the product of RMS voltage and current), so it can be used to monitor inductive loads. The Yocto-Watt can compute the poser consumption during a given lapse of time. Accuracy will be 1mWh, 1%. 

This device is isolated, which means that the sensing part is electrically disconnected from the USB part: you can measure any voltage difference between -250V and 250V, without risk of frying your computer. The modules provides immediate reading on USB, and can also store measures on the device internal flash for later retrieval when connected again by USB.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub-GSM.

USB cables and enclosure to be ordered separately.

Product Details
YWATTMK1

Data sheet

Width
50mm
Length
58mm
Weight
20g
USB connector
micro-B
Refresh rate
10Hz (DC)
Accuracy
(AC) 0.2W / 3%
(DC) 0.002W / 1.5%
Max current (Cont.)
16A
Power derating
0,67A/°C above 61°C
Max working voltage
250V AC
Normal operating temperature
5...40°C
Extended operating temperature
-30...85°C
Supported Operating Systems
Windows (PC + IoT), Linux (Intel + ARM), macOS, Android
Drivers
no driver needed
RoHS
Yes
Suggested enclosure
YoctoBox-Watt-Transp
Reviews
Grade 
Andreas W.
02/12/2026

Highly recommended for monitoring

We use it for equipment supervision. Data is reliable and integration with our SCADA was straightforward.

Grade 
Martin D.
09/18/2025

Professional quality product

Robust, accurate, well documented. Exactly what we needed for our test bench.

Grade 
David M.
07/17/2025

Rapport qualité/prix correct

Fait le travail. L'installation plug-and-play est un vrai plus par rapport aux solutions concurrentes qui nécessitent des drivers.

Grade 
Sébastien K.
03/25/2025

Bon produit, conforme aux specs

Conforme à la fiche technique. Fonctionne bien sous Linux. Le support technique de Sensor Factory a été réactif pour nos questions.

Grade 
Andreas W.
01/02/2025

Reliable in industrial environments

We deployed several units in our control cabinets. No failures after 6 months of continuous operation.

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