Ph-Meter Hanna HI 99104 PH Tester Educational

Temperature data logger with IP54 protection rating with 2 channels with 1 internal sensor and 1 external probe in pointed steel Ø 4mm L = 80mm with 1m cable and multifunction display for viewing: current value and minimum, maximum and average value of the internal sensor and external probe temperature, time spent by the logger outside the set thresholds, indication of low battery, type of logger start and end of measurements.
Marking an event on the logger with a magnetic key.
Storage start via software and with magnetic key.
Ability to store 32,000 measurements. Interval 5 sec ... 24 hours. Persistent LED light indication
Red exceeding a set threshold temperature and Green LED of active logger. Internal battery (autonomy 2 years) replaceable.
Accredia certifiable with minimum extended uncertainty of the certificates minimum measure of 0.46 ° C.

External steel probe with tip (various configurations)
Memory: 32000 measurements
Working range: -40 ... + 70 ° C
Accuracy: ± 0.3 ° C

2-channel data logger with 1 internal sensor and 1 external probe, 1 meter of cable