Easy to use,portable design with high precision. Large LCD display makes the reading more clear and easier, stable the value in 4-5 seconds. Accuracy: ±0.01 PH. Resolution: 0.01pH. (under 25 C). ATC Automatic Temperature Compensation.
eBay
The KETOTEK pH Meter Pen is a liquid analysis instrumentation designed for measuring the pH level of water. With a compact package dimensions of 16.4 x 6 x 3 cm and a weight of 120 grams, this digital pH tester pen is easy to handle and use. The device comes in English language and includes a calibration solution for accurate readings. Perfect for hydroponics and garden maintenance, this pH testing tool by KETOTEK is a reliable and essential tool for monitoring the pH levels in your water supply.
eBay
eBay
Resolution: 0.01 pH. Design: Handheld Digital Pen Type. Key Features. Clear LCD Display: Digital screen with backlight for easy viewing, even in low-light conditions. Wide Application: Suitable for aquariums, hydroponics, swimming pools, spas, drinking water, and household testing.
eBay
This digital pH meter features portable design, simple operation and high precision, can detect the pH value of liquids anytime, anywhere, widely used for aquarium, brewing, pool, cosmetic, aquaculture, drinking water, food, industrial wastewater, laboratory and other areas. Specification: Measure range: 0.00- 14.00PHAccuracy: 0.01 PHResolution: 0.01pHPackage: 1*pH meter, 2*calibration solution (pH4.01, pH6.86), 2*1.5V LR44 batteries(including, installed),1*User Manual (English). Two-point Automatic Calibration 1. Prepare calibration solution Dissolve each buffer solution in 250 ml of distilled water 2. pH 6.86 calibration Immerse the electrode into the pH 6.86 solution.(under 25 C). Press the "CAL" button for 3 seconds and releaseDisplay will start flashing 6.86Wait until the display stops flashing. 3.
eBay
VITALINK BUFFER 7 250ML. ALL IV - PH - AB - KW - PA - DD9 - KA27-28 = £10. Up to 20kgs. BT = £15 - ROI = £30. I.O.W = £10. Weight: 0.4kg.
eBay
Keep your EC meters in perfect working order with the Bluelab EC Cleaning and Calibration Kit. With this set you get everything you need for a thorough EC meter cleaning. It contains 2 x 20 ml 2.77 EC solutions, an electrode cleaning fluid, a calibration cup and a practical cleaning spatula. Ideal for Bluelab EC-Pen, Truncheon, Combo Meter and Guardian, but also compatible with devices from other manufacturers.
eBay
3 Following inhalation: Move victim into fresh air. If breathing is difficult, give oxygen. pH 4 contains Potassium hydrogen phthalate 100% CAS number: 877-24-7. pH 6.86 contains Disodium phosphate, Monopotassium phosphate 100% CAS numbers: 7778-77-0; 7558-79-4.
eBay