description

pen ph meter
model : ph-222
* 0 to 14.00 ph.
* atc (auto temperature compensation).
* auto calibration for ph 4, ph 7 or ph 10.
* meter with ph electrode, all in one.
* ip-67, water proof.
* easy replacement for the ph electrode.
* pen type, easy carry out.
* data logger.
* ph 4, ph 7 standard solution are included.
* dc 1.5v battery (um-4, aa) x 4, long life.