Extech RF41 Portable Battery Coolant/Glycol Refractometer W/ATC (°C), Case Included

Extech RF20 Portable Salinity Refractometer, Case Included, 0-100 ppt Easy to operate - provides accurate and repeatable measurements on easy to read scale. Requires only 2 or 3 drops of solution. Simple focus adjustment on prism and lens. Includes: Carrying case Calibration screwdriver

Starter 300-B pH Portable, Range 0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV, Convenient Portable pH Meter, ABS housing, wrist strap, Automatic and manual temperature compensation, auto buffer recognition, calibration icon. Features: Applications:pH, oxidation-reduction potential (ORP) measurement Display: Liquid crystal display (LCD) Operation: 4 AAA batteries (included) Design Features: Automatic and manual temperature compensation, auto buffer recognition, calibration icon

Extech SDL600 Sound Level Meter/Datalogger, Plastic, 6 AA batteries, Case Included Data logging sound level meter records data on an SD card in excel format. Use of SD card makes transfers to a PC easy. Excel format makes data analysis fast and simple. Complete with: 6 AA batteries SD card Wind screen hard carrying case

Starter 300 pH Portable Kit with Case, Range 0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV, ABS housing, wrist strap, Automatic temperature compensation, adjustable temperature coefficient, Electrode ST322(Included). Features: Applications: pH, oxidation-reduction potential (ORP) measurement Display: Liquid crystal display (LCD) Operation: 4 AAA batteries (included) Design Features: Automatic and manual temperature compensation, auto buffer recognition, calibration icon

Starter 300 pH Portable, Range 0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV, Convenient Portable pH Meter, ABS housing, wrist strap, Automatic and manual temperature compensation, auto buffer recognition, calibration icon. Features: Applications: pH, oxidation-reduction potential (ORP) measurement Display: Liquid crystal display (LCD) Operation: 4 AAA batteries (included) Design Features: Automatic and manual temperature compensation, auto buffer recognition, calibration icon