HM Digital PH-200 Waterproof Temperature PH Meter, 3.3" x 8.5" x 2", White auspowers_batchfive Single steel case for durability

Single steel case for durability

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

AUTO SHUTOFF FEATURE Automatically turns off to conserve power so that batteries last longer

Specifications: Outer Dia

Snow thrower

HM Digital PH-200 Waterproof Temperature PH Meter, 3.3&quot x 8.5&quot x 2&quot, White auspowers_batchfive Single steel case for durabilityHM 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