Includes an aquarium-specific packaging

or disabled) conserves battery life

All pH measurements are performed within the electrode and transferred digitally to the meter

Model: MA800

double junction lab grade pH electrode for low maintenance and high performance with a screw on cap to ensure proper storage (SE220 probe included)

Hanna HI7102 Relative Humidity Calibration Kit - Portable 2-Chamber RH Calibrator student laboratory Includes an aquarium-specific packagingHanna HI7102 Relative Humidity Calibration Kit Portable Precision RH Calibration The Hanna HI7102 Relative Humidity Calibration Kit is a portable, dual chamber calibration system designed for accurate humidity sensor calibration in laboratory and field environments. This compact kit features two thermally isolated chambers, each supplied with a cap and calibration salts, ensuring reliable calibration of relative humidity meters and sensors. Key