SX721 Portable pH/ORP Meter SX721 Portable pH/ORP Meter 1.Auto calibration 2.Auto temp. compensation 3.Hand held and waterproof 4.Data Storage:200gr
SX716 Portable Dissolved Oxygen Meter SX716 Portable Dissolved Oxygen Meter 1.Auto calibration2.Auto temperature compensation3.Hand held and waterproof
PB-302 ORP Transmitter/Display PB-302 ORP Transmitter/Display: Has the advantages of waterproof, moisture-proof, anti-jamming and temperature resistant
PB-300 ORP Transmitter PB-300 ORP Transmitter: Has the advantages of waterproof, moisture-proof, anti-jamming and temperature resistant.