S/N

Sensor

Manufacture

Model

Range

1

pH

Atlas Scientific

ENV-40-pH

0 - 14 (Na⁺ error at >12.3 pH)

2

EC

Atlas Scientific

ENV-40-EC-K0.1

(K = 0.1) 0.1 - 0.5 µs/cm to 50,000 µs/cm

3

DO

Atlas Scientific

ENV-40-DO

0 - 20 mg/L

4

Temperature

Maxim Integrated

DS18B20

−55˚C to +125˚C