Equipment and Calibration History

History for Environmental Sensors Inc. PRB-K Type #8 000000574632

Rec No.	Date	Loc From	Title	Loc To	Notes
3349	2017-12-14	Tonzi	Removed	Lab none	Removed from the location inside the soil co2 profile fence. This probe has been giving bad readings for a while and its lowest pin is broken off.
4237	2001-11-10	Lab none	Installed	Tonzi	Installed near the soil co2 measurements tower by Dennis and Liukang