Extech RF40 Portable Battery Coolant/Glycol Refractometer W/ATC (°F), 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

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.

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.

This kit includes a digital pH Pen that measures 0 to 14pH and pH buffer solution for electrode calibration and care. This REED R3500-KIT pH Meter and 4pH/7pH Buffer Solution Kit Includes REED R3500 pH Meter REED R1404 Buffer Solution, 4.01 pH REED R1407 Buffer Solution, 7.00 pH Ideal Applications for the REED R3500-KIT Water conditioning General purpose pH measurement Aquariums Wastewater monitoring Beverage production