Description
ThermoPro TP357 is a wireless digital thermo-hygrometer providing real-time temperature and humidity readings for indoor grow rooms, propagation areas and grow tents. We have been recommending ThermoPro monitoring equipment to UK growers since 2017 as a cost-effective and reliable way to keep accurate track of your growing environment without the need for expensive dedicated environmental controllers.
Real-Time Environmental Data for Better Growing Decisions
The ThermoPro TP357 features a clear LCD display showing simultaneous temperature and relative humidity readings, along with max/min memory that allows you to review the range of conditions your growing space has experienced since you last reset the monitor. This is particularly valuable for identifying overnight temperature drops during lights-off, humidity spikes after watering, or gradual shifts in growing conditions as outdoor seasons change.
Temperature accuracy is ±1°C and humidity accuracy is ±3% RH — appropriate for practical grow room management where you are targeting ranges rather than single-point precision. The TP357 is compact and can be placed on a shelf, hung from a tent pole, or mounted on a wall at canopy level for the most representative readings of the conditions your plants are actually experiencing.
Setup and Complementary Equipment
No complex setup is required — insert batteries, allow a few minutes for the sensor to stabilise, and you have live environmental data immediately. For larger growing spaces or multiple grow rooms, multiple units can be deployed simultaneously to monitor different zones. Pair with an environmental controller, humidifier, dehumidifier and fan speed controller to complete a comprehensive environmental management system.
The TP357 complements the ThermoPro TP358 in a multi-zone monitoring setup, with the TP358 offering a slightly larger display for use as the primary room monitor while the TP357 serves a secondary monitoring position. A simple, reliable, and affordable environmental monitoring solution for any serious UK grower.
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