Feature:1. PH controller has builtin instruments, electrodes and all accessories, which are easy to use.2. Beautiful appearance, light weight and thin body, easy to install, operate and maintain.3. PH and temperature can be measured on one instrument at the same time, which is practical and convenient.4. Water quality tester is made of highquality ABS material, durable and wearresistant.5. The PH meter has accurate testing results, high stability and good performance.Specification:Item Type: PH ControllerMaterial: ABSModel: PH-221Function: monitor the PH value of water qualityScope of application: suitable for places that need water quality monitoring, such as fish hatching, wine production, swimming pools (bathrooms), laboratories, water quality management, middle schools and universities, floral analysis fluids (PH value), pond, various industries, etc.Measuring RangePH: 0.00~14.00 Temp: 0~50 ResolutionPH: 0.01 Temp: 0.1C(0.2 )AccuracyPH: 0.02PHTemp: 1Working Environment0~50 C; RH<95%Setting Control Range0~14PH(high or low limit).Package List:1 x PH Controller1 x PH Pole Pen1 x Temperature Probe1 x Buckle1 x Suction Cup1 x Plastic Box1 x Manual