Description
Know the Highs and Lows You Missed
The Essentials Min-Max Thermo Hygrometer is a compact digital unit that shows temperature and relative humidity together and remembers the highest and lowest values recorded since you last reset it. It also shows the time, so it sits neatly on a shelf or hangs inside a grow tent, greenhouse or propagation area.
Key Benefits
- Temperature and humidity on one screen, read at a glance.
- Min/Max memory – see the overnight low and lights-on high at the push of a button.
- Accurate to within ±1°C.
- °C or °F display.
- Built-in clock and a fold-out stand for free-standing use.
Temperature Swings You Never See
Most problems with heat and humidity happen when nobody is in the room – a hot spell at the end of the light period or a cold, damp dark period that invites mould and slows growth. A min-max reading tells you what really happened while you were away, so you can adjust extraction, heating or humidity control before plants show stress.
How to Use
- Place the unit at plant height, out of direct light and away from fans or heaters.
- Press MAX/MIN to view the highest and lowest readings since the last reset.
- Reset the memory after each check to start a fresh 24-hour record.
- Use C/F to switch units and MODE / ADJ to set the clock.
Technical Specifications
- Displays: temperature, relative humidity, clock
- Memory: maximum and minimum values since last reset
- Temperature accuracy: ±1°C (±1.8°F)
- Units: °C / °F
- Mounting: fold-out stand
