Hanna pH 4.0 Calibration Solution - 500ml Size:500 ml Humidity and temperature are measured

Humidity and temperature are measured directly with the sensor integrated into the device

Up to 8 units can be daisy chained together with link cords

double the dose for one or two weeks

• Use on most indoor plants including flowers

providing an optimal environment for a uniform and fast rooting

Hanna pH 4.0 Calibration Solution - 500ml Size:500 ml Humidity and temperature are measuredHI7004L & HI7004P is a premium quality pH 4. 01 calibration solution that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Air tight bottle with tamper proof sealEnsures quality and freshness of solutionColor coded label for easy pH buffer value identificationEasy