To ensure that your plants grow within the optimal temperature and humidity, it is necessary to position a thermo/hygrometer during cultivation. This way you can keep an eye on the indoor climate in your grow box and act accordingly.This practical indoor/outdoor thermo & hygrometer with memory function and two measuring points measures and stores the minimum and maximum temperature values via an external sensor with a cable length of approx. 1.5 metres. The measuring point for humidity and temperature is determined on the unit, the external sensor only monitors the temperature.One AAA battery is required for use, included in the scope of delivery.Technical data:2 Measuring points, measures indoor and outdoor temperature2 Display options for the time: 12h/24hTemperature range indoor: -10C to 50CTemperature range outdoor: -50C to 70CRelative humidity: 20% RH to 99% RHAir humidity accuracy: +/- 1%Accuracy temperature: +/- 1CSensor cable length: 2 metresMax and Min Display: Displays min and max at the touch of a button. Temperature/humidity from the last reading at the push of a buttonExternal sensor with 2m cable only suitable for temperature measurementSize: 10 x 9 x 2.3 cmDetails:Large LCD DisplayMultifunctionHigh stability & accuraryLow power consumptionIndoor Temperature Display COutdoor Temperature Display CHumidity DisplayTime Display Alarm Clock Display (12/24 hour switching)1.5V AAA Battery included Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.