KL-025 Online PH Monitor To suffice the specific needs of users, require low price, easy maintenance, for continuous monitoring and display, do not control, and therefore introduced the mini-series. Applied aquarium, aquaculture, and so on. Range 0.00-14.00PH Resolution 0.01PH Accuracy ±0.1pH Power Supply DC 6V(include), with adaptor Operating Temperature 0℃～50℃ Dimensions 60mm×55mm×23mm Weight 75g