Ohaus St 10 Ph Meter

*title:* `ohaus st10 ph meter – original, tested *description:* `selling ohaus st10 pen ph meter. 100% original usa brand.` ` condition: like new, used only 3 times. no damage.` ` fully working: tested and displays 6.8 ph. test before you pay.` ` complete: comes with original cap + ohaus strap. `ideal for: labs, students, aquariums, hydroponics, pools.` `location: nairobi cbd. can meet today.` `contact{phone=0723501059} `reason: finished project, no longer needed.`