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This is a water proof push button with illuminator. It is made by stainless steel with excelle..
This module based on the DS3231, it is the foreign high precision clock module for Raspberry Pi B+ a..
DETAILS:pH 7.00Works with any pH Probe125ml (4oz) or 250ml (8oz)±0.02 pH at 25°CStandardized against..
Works with any pH Probe
125ml (4oz) or 250ml (8oz)
±0.02 pH at 25°C