Digital Max-Min Alarm Thermometer Remote Probe greenhouse ventilation This essential gardening tool helps

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Digital Max-Min Alarm Thermometer Remote Probe greenhouse ventilation This essential gardening tool helpsThis compact Digital Max Min Alarm Thermometer incorporates both an internal and external temperature sensor. It is a must have for any greenhouse gardener. You can use it to see the current temperature in the greenhouse, together with the maximum and minimum temperatures achieved. The external sensor lets you measure soil or air temperature in the most temperature sensitive area. With an easy to read LCD display, you can view the temperature in