Internal Sensor Data Loggers

Industrial humidity measurement requires top-tier professionalism, both in system operation and in the measuring technology itself. The testo 6681 industrial humidity transmitter, paired with the testo 661x probe series, meets these rigorous standards with ease.

DROPs are small, rugged, waterproof and accurate. They allow you to record and monitor the conditions of any environment, while easily accessing and charting real-time data on a smart device. The DROPs can be placed in multiple locations (inside, outside, and even in water) to log specific conditions and transmit data via Bluetooth.