1. Pen type digital pH meter, all in one 2. Water proof 3. ATC 4. LCD indicates ... both pH & temp. all in one pen type low cost ph meter FEATURES: 1. 0. ... temp.2. Pen type digital pH meter, all in one, pH electrode included, easy to use9. Data hold function ... * Meter with pH electrode.Weight82 g (electrode included).WARRANTY:One year after purchase. For electrode: half year.PICTURES:A. ...