hanna instruments inc

portable ph/ec/tds meter, range: ph 0.0 to 14.0 ph ec 0.00 to 4.00 ms/cm tds 0 to 1999 ppm (mg/l) - hi9813-51

groline ph/conductivity probe with built-in temperature sensor din connector and 2m (6.6’) cable

groline 5000 µs/cm conductivity standard with certificate (230ml x 2nos)

groline ph 4.01 calibration buffer (230 ml x 2nos)

groline waterproof hydroponic ph tester

combo ph/conductivity/tds tester (high range) - hi98130

groline ph/ec/tds/temp probe with 3/4" in-line threaded connection for use with the hi98142x monitor

groline general purpose cleaning solution (500ml x 2nos)

groline general purpose cleaning solution sachets, 20 ml (25 pcs.)

quick calibration solution for groline ph and ec meters (120 ml x 4nos)

groline hydroponics ph tester with hi1271 ph electrode

digital refractometer for refractive index and brix - hi96800

direct soil and soilless media ph electrode for use with hi9814

groline general purpose cleaning solution (120ml x 5nos)

groline ph 7.01 calibration buffer (120ml x 5nos)

quick calibration solution for groline ph and ec meters (230 ml x 2 nos)

groline direct soil conductivity (ec) and temperature tester (range: 0.00 to 4.00 ms/cm)

freshwater alkalinity checker® hc reagents (25 tests) - hi775-26

groline general purpose cleaning solution (230ml x 2nos)

groline ph 10.01 calibration buffer (230ml x 2nos)