REED Instruments Refractometer, 0-28% Salinity

Starter Pen Meter, pH,0.0 – 99.0 °C;0.00 – 14 pH, Compact Design for Fast, Convenient Electrochemistry Measurement At Your Fingertips, ABS Housing, Liquid crystal display (LCD) display, 4 1.5V batteries (included). Easily replaceable electrodes, automatic shut off feature

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

This digital pH pen displays both temperature and pH simultaneously on a dual LCD display. The R3500 features automatic temperature compensation for accurate readings and includes a built-in calibration procedure. Features: User selectable °F or °C Replaceable pH electrode module Data hold function Waterproof housing Protective cap keeps sensor moistened Low battery indicator and auto shut off Accuracy: ±0.02 pH, ±1.8°F (1°C) What's included with the REED R3500 pH Meter Protective Cap Hard Carrying Case Batteries Ideal Applications for the REED R3500 Water ...

Gardeners can conveniently test their moisture, light, and pH levels with the handy Active Air 3-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist); light readings range from 0 (low light) to 2000 (very strong light); accurate pH readings range between pH 3.5 and 8. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate. Remove from soil and clean prongs after each use to ensure the moisture meter stays in top performance shape.

Gardeners can conveniently test moisture and pH levels with the handy Active Air 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist). pH readings between pH 3 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate. Remove from soil and clean prongs after each use to ensure the moisture meter stays in top performance shape.