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Yocto-PT100 Quick view

Reference: PT100MK1

Brand: Yoctopuce

Yocto-PT100

Review(s): 6
Small device to measure the temperature with very high precision, using a PT100 temperature sensor (2, 3 or 4-wires supported). The device includes a built-in data logger to record measurements. The PT100 connection is electrically isolated from the USB bus. You can add Ethernet, Wireless or GSM connectivity to this device.
€86.67
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Yocto-Meteo-v2 Quick view

Reference: METEOMK2

Brand: Yoctopuce

Yocto-Meteo-v2

Review(s): 5
This USB module is tiny weather station: it features a temperature sensor, a humidity sensor and a pressure sensor. It includes a built-in data logger as well. You can add Ethernet, Wireless or GSM connectivity to this device.
€64.57
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Reference: RELAYHI2

Brand: Yoctopuce

Yocto-PowerRelay-V2

Review(s): 4
USB interface driving a tiny electromagnetic relay capable of switching directly mains powered appliances, up to 1250W. You can add Ethernet, Wireless or GSM connectivity to this device.
€27.97
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Yocto-Light-V4
  • Yocto-Light-V4
  • Yocto-Light-V4
  • Yocto-Light-V4
  • Yocto-Light-V4

Yocto-Light-V4

LIGHTMK4
Rating 

The Yocto-Light-V4 device is a USB ambient light sensor (lux meter) which allows you to measure ambient light up to 83'000 lux.

€28.77
Tax excluded
3-5 days
Quantity
In stock

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Description

The Yocto-Light-V4 device is a USB ambient light sensor (lux meter) which allows you to measure ambient light up to 83'000 lux. Measurements can be read directly via USB or stored on the device internal flash for later retrieval when connected again by USB.

This device is a replacement for the Yocto-Light-V2 which is not produced anymore. The Yocto-Light-V4 is recommended for low light measurements as it can detect down to 0.01 lux.

This circuit has been designed so that the sensor itself can be moved away from the USB part by a few meters: simply split the board into two parts and solder a 4-wire cable on the designated pads.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-n and to a GSM network using a YoctoHub-GSM.

USB cables and enclosures to be ordered separately.

Product Details
LIGHTMK4

Data sheet

Width
20mm
Length
35mm
Weight
3g
USB connector
micro-B
Refresh rate
10Hz
Sensitivity
0.01lx
Normal operating temperature
5...40°C
Extended operating temperature
-30...85°C
Drivers
no driver needed
Suggested enclosure
YoctoBox-Short-Thin-Black
IEC protection class
class III
API / SDK / Librairie
C++ Obj-C C# VB.NET UWP Delphi Python Java Android LabVIEW
API / SDK / Librairie (seul.TCP)
Javascript Node.js PHP
Reviews
Grade 
Gordon Ferretti (Emerson)
11/27/2025

Reliability verified in field conditions

Sensor used as part of our ISO certification process. Traceability data is reliable. Good accuracy-to-price ratio for industrial monitoring.

Grade 
Technicien réseaux, bioMérieux
08/08/2025

Qualité industrielle confirmée

Nous avons remplacé nos anciens capteurs par ce modèle. Gain de temps sur l'installation et meilleure fiabilité des mesures.

Grade 
Adrian
05/27/2025

Commissioning without complications

Plugged in, detected, operational in minutes. No driver required on Linux, which is appreciated.

Grade 
Hans S.
01/12/2025

Good choice for industrial monitoring

We equipped 3 sites with this sensor. Positive feedback from field technicians on ease of installation.

Grade 
Fabrice — Fives
10/16/2024

Répond à nos exigences métrologiques

Bonne précision, conforme aux spécifications annoncées. Le SDK Python nous a permis d'intégrer rapidement les données dans notre plateforme de supervision.

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