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Data loggers & CO₂ meters for every application

For years, the specialist in temperature, humidity, and air quality monitoring in the Benelux — with our own calibration lab and personal technical advice.


Personal technical advice
Our specialists help you choose the right sensor or data logger for your specific application — from pharma to food safety
Fast delivery throughout Europe
Product in stock? Delivered within 2 working days
In-house calibration lab 
Each device can be calibrated in our own lab, or via our ISO/IEC 17025 accredited partner lab if you need a formally recognised certificate.

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[6032] T&D TR-43A Bluetooth Temperature and Humidity Data Logger - External Sensor 1982163957.webp

T&D TR-43A Bluetooth Temperature and Humidity Data Logger - External Sensor

Bluetooth datalogger with external temperature and humidity sensor, suitable for accurate monitoring via a free app and optional cloud storage. It features a measurement range of 0–55°C and 10–95% RH, up to 1.5 years battery life, and is splash-proof with an IP64 rating.
240.86 € (Tax included)

199.00 € 199.00 € without taxes

[5296] Efento Bluetooth Soil Moisture and Temperature Logger soil-moisture-probe.webp

Efento Bluetooth Soil Moisture and Temperature Logger

Wireless Bluetooth soil moisture and temperature logger with Watermark probe, long battery life (up to 5 years), IP67 housing, 40,000-measurement storage, and easy configuration via a free mobile app.
249.20 € (Tax included)

205.90 € 205.90 € without taxes

[3092] EL-SIE-6+ USB Temperature, Humidity and Pressure Data Logger 1965518142.webp

EL-SIE-6+ USB Temperature, Humidity and Pressure Data Logger

With display and replaceable battery – operates without software via your web browser on PC and Mac.
251.23 € (Tax included)

207.63 € 207.63 € without taxes

[4402] Aranet4 PRO CO2 Meter 1436171907.webp

Aranet4 PRO CO2 Meter

An advanced, portable CO₂ monitor that measures not only carbon dioxide but also temperature, relative humidity, and atmospheric pressure. This sensor operates on batteries.
253.02 € (Tax included)

209.00 € 209.00 € without taxes

[2131] AirCheq Aero Pro – Indoor Air Quality Meter 1w.webp

AirCheq Aero Pro – Indoor Air Quality Meter

The AirCheq Aero Pro is an all-in-one air quality sensor measuring CO₂, particulate matter, VOCs, and NOx, featuring a touchscreen display, WiFi, and LoRaWAN. Easily request a free quote below.
264.99 € (Tax included)

219.00 € 219.00 € without taxes

[4103] Wöhler CDL 210 – CO₂ Meter and Data Logger 1918224933.webp

Wöhler CDL 210 – CO₂ Meter and Data Logger

The Wöhler CDL 210 is a high-quality CO₂ meter and data logger made in Germany.
This device measures and records carbon dioxide (CO₂), temperature, and relative humidity in real time.
Thanks to the built-in acoustic alarm and clear display, you are immediately alerted when preset threshold values are exceeded.
266.20 € (Tax included)

220.00 € 220.00 € without taxes

[1026] Tempmate GM2 Multi-Use GPRS Logger 2041753818.webp

Tempmate GM2 Multi-Use GPRS Logger

A reusable, multifunctional data logger with 4G GPRS connectivity for real-time monitoring of temperature, humidity, light, tilt, shock, and GPS location. Designed for critical applications in pharma, logistics, and sensitive supply chains.
266.27 € (Tax included)

220.00 € 220.00 € without taxes

[1300] LOG 220 ECO2 Data Logger for Temperature, Humidity, CO2 and Pressure

LOG 220 ECO2 Data Logger for Temperature, Humidity, CO2 and Pressure

The LOG220E is a PDF data logger that measures and records temperature, humidity, CO₂ and air pressure. Via the built-in USB interface, measurement data is automatically converted into a PDF report — no software required. Includes external CO₂ sensor (0–5,000 ppm), display, motion sensor and calibration certificate.
273.46 € (Tax included)

226.00 € 226.00 € without taxes

[5220] Efento NB-IoT CO₂ Logger efento-nb-iot-sensor-back-tapes (5).webp

Efento NB-IoT CO₂ Logger

The Efento NB-IoT wireless CO₂ logger measures CO₂, temperature, humidity, and pressure, transmits data via the NB-IoT network to the cloud, has a memory of 40,000 measurements, and a battery life of up to 5 years.
309.24 € (Tax included)

255.40 € 255.40 € without taxes

[6035] T&D TR-72A2 WiFi / Bluetooth Humidity and Temperature Data Logger

T&D TR-72A2 WiFi / Bluetooth Humidity and Temperature Data Logger

WiFi/Bluetooth datalogger with external sensor for temperature and relative humidity, which automatically uploads measurement data to a free cloud service. With a measurement range of 0–55°C and 10–95% RH, up to 1.5 years battery life, and easy operation via a free app and web browser, this logger is ideal for accurate and flexible monitoring.
313.52 € (Tax included)

259.00 € 259.00 € without taxes

[6009] T&D TR-72nw LAN Humidity & Temperature Logger

T&D TR-72nw LAN Humidity & Temperature Logger

The T&D TR-72nw LAN logger with external THA-3001 sensor provides accurate temperature and humidity monitoring via LAN, USB, or cloud, including email alerts and memory for 8,000 measurements.
313.52 € (Tax included)

259.00 € 259.00 € without taxes

[1503] Vaisala GMW90 Industrial CO₂, Temperature and Humidity Transmitter 1500904651.webp

Vaisala GMW90 Industrial CO₂, Temperature and Humidity Transmitter

The Vaisala GMW90 series is a reliable transmitter for CO₂, temperature, and humidity, featuring CARBOCAP® microglow technology, analog or digital outputs, and easy calibration via interchangeable modules.
320.65 € (Tax included)

265.00 € 265.00 € without taxes

[3071] EL-CC-2 Single-Use Temperature & Humidity Data Logger (Pack of 10) 479319005.webp

EL-CC-2 Single-Use Temperature & Humidity Data Logger (Pack of 10)

The EL-CC-2 is a ready-to-use, single-use temperature and humidity data logger for Cold Chain monitoring, featuring USB data download and export to PDF or Excel. Supplied in packs of 10 units with IP67 protection for safe transport and storage applications.
329.73 € (Tax included)

272.50 € 272.50 € without taxes

[3149] EL-WEM+ WiFi CO₂ and Air Quality Monitor EL-WEM Image 3.webp

EL-WEM+ WiFi CO₂ and Air Quality Monitor

The EL-WEM+ is an advanced WiFi monitor that measures six air quality parameters and automatically uploads data to the EasyLog Cloud.
Thanks to the color status ring and alerts via email, SMS, sound, and light, you can instantly see whether the indoor environment is healthy.
344.80 € (Tax included)

284.90 € 284.90 € without taxes

[4259] DK362 HumiLuxLog ruggedPlus Data Logger – Compact, Rugged Logger for Light, Temperature and Humidity 540701359.webp

DK362 HumiLuxLog ruggedPlus Data Logger – Compact, Rugged Logger for Light, Temperature and Humidity

De DK362 HumiLuxLog ruggedPlus van Driesen + Kern is een compacte en robuuste datalogger met geïntegreerde sensoren voor lichtsterkte, temperatuur en luchtvochtigheid. Dankzij de hoge nauwkeurigheid, filterdop voor natte omgevingen en IP65-bescherming is dit de ideale logger voor veeleisende meettoepassingen.
344.85 € (Tax included)

285.00 € 285.00 € without taxes

[1502] Vaisala GMW93RA Industrial CO2 + RHT Transmitter with Display

Vaisala GMW93RA Industrial CO2 + RHT Transmitter with Display

The Vaisala GMW93RA is an industrial-grade CO₂, temperature, and humidity monitor with display and LED indicator, offering up to 15 years of low-maintenance operation thanks to CARBOCAP® technology, compliant with Dutch Building Regulations (Bouwbesluit 2012) and ideal for indoor air quality monitoring.
353.32 € (Tax included)

292.00 € 292.00 € without taxes

[5240] Efento Bluetooth Pipe Pressure Data Logger 0-7 bar efento-pipe-pressure-probe.webp

Efento Bluetooth Pipe Pressure Data Logger 0-7 bar

The Bluetooth Wireless Pipe Pressure Data Logger measures and records pressure in pipelines with a range of 0-7 bar. It transmits data via Bluetooth Low Energy (BLE) and can be easily configured and read using a free mobile app.
386.78 € (Tax included)

319.60 € 319.60 € without taxes

[5255] Efento NB-IoT Wireless soil moisture and temperature logger soil-moisture-probe.webp

Efento NB-IoT Wireless soil moisture and temperature logger

The Efento NB-IoT Wireless Soil Moisture and Temperature Logger provides accurate soil moisture and temperature monitoring with external probes. Data is transmitted wirelessly via NB-IoT to the cloud and easily managed with a smartphone. Note: SIM card and cloud subscription required (not included).
433.63 € (Tax included)

358.20 € 358.20 € without taxes

[4700] CA 1510 – Data Logger for CO₂, Temperature and Humidity with Bluetooth and Display 499577182.webp

CA 1510 – Data Logger for CO₂, Temperature and Humidity with Bluetooth and Display

The CA 1510 is a compact and accurate data logger that measures CO₂, temperature, and humidity, calculates the air exchange rate (Confinement Index), and can be easily accessed via Bluetooth or USB using a PC or the free Android app, with storage capacity for up to 1 million readings.
646.20 € (Tax included)

534.00 € 534.00 € without taxes

[4280] DK324 HumiLog ruggedPlus – Robust Temperature & Humidity Logger up to +140°C 527680072.webp

DK324 HumiLog ruggedPlus – Robust Temperature & Humidity Logger up to +140°C

The DK324 Humilog ruggedPlus is a compact, robust data logger for temperature (-40°C to +140°C) and humidity (0–100% RH), featuring IP65 protection, integrated sensors, a “shaky start” function, and memory for 4 million measurements.
671.55 € (Tax included)

555.00 € 555.00 € without taxes