HM Digital PH-200 Waterproof Temperature PH Meter, 3.3" x 8.5" x 2", White auspowers_batchfive HiLetgo 5pcs DS3231 AT24C32 Clock

HiLetgo 5pcs DS3231 AT24C32 Clock Module Real Time Clock Module IIC RTC Module for Arduino Without Battery

Epoxy resin encapsulated safety isolating transformer

This valve is not recommended for service or testing with compressed air or gases

Reading Hold °C of °F annunicators

Outside Diameter: 5/8

HM Digital PH-200 Waterproof Temperature PH Meter, 3.3&quot x 8.5&quot x 2&quot, White auspowers_batchfive HiLetgo 5pcs DS3231 AT24C32 ClockHM Digital PH 200 Waterproof Temperature PH Meter, 3. 3&quot x 8. 5&quot x 2&quot, White HM Digital's PH 200 is a digital waterproof pH meter (aka pH tester or pH pen) that is ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agriculture and more. It is fast