AQUAMASTER - SUBSTRATE EC TEMP METER - E300 PROThe E300 Pro is the ideal meter to measure the EC and temperature of coconut soil and other moist, soft substrates and liquids. The meter features a modern and robust housing with easy to operate buttons. The E300 Pro includes an EC electrode of unprecedented quality. The meter is delivered fully calibrated and includes batteries. Connect the PIN connector of the electrode to the EC meter. Rinse the electrode with running water and dry it using clean
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