- Integrated temperature sensor - Waterproof DIN connector - Banana Plug Connector - 1 m Cable - WTW technical buffer solution pH 4 STP 1.679 / 1.68 for special applications, 250 ml - WTW technical buffer solution STP 4 pH 4.01, 50 mL - WTW STP 7 Technical buffer solution pH 7.00, 50 mL - WTW STP 10 Technical buffer solution pH 10.00, 50 ml_