Images: Flower images show typical blooms of the listed plant or clone where available. Whole-plant images may be representative of growth stage and may vary in size and presentation. Accessory images are representative — colours and minor details may vary slightly. Individual items may differ depending on season and conditions.
Digital Thermometer & Hygrometer — HTC-2 with External Probe
Digital Thermometer & Hygrometer — HTC-2 with External Probe
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The HTC-2 is a digital station that shows indoor temperature, outdoor temperature (via a wired external probe), humidity and the time on one large backlit LCD screen. It is the most informative instrument in our range, suited to growers who want real-time readings from more than one point in their setup.
About this product
- Indoor temperature: built-in sensor
- Outdoor temperature: wired external probe
- Humidity: 0–99% RH
- Clock: 12-hour AM/PM display
- Large backlit LCD screen
What's in the pack
- HTC-2 unit with wired external probe
- Desk stand, wall mount and suction cup
- 1 × AA battery
How to use it
Monitor inside and outside your growing space at the same time: probe on the bench, unit at eye level. It is useful for tracking the humidity and temperature differences that matter to cool-growing genera, or for keeping an eye on a shadehouse and indoors together. For a full guide to building a monitoring routine, see our Deep Dive: How to Monitor Temperature and Humidity in an Orchid Growing Space.
Sourcing & shipping
We source supplies directly from specialist manufacturers in China — products we evaluated personally and chose because they're what serious growers and botanical collections actually use. Our Guangzhou team hand-selects and checks every item before it ships. Accessories ship separately from plants via Yun Express — shipping from $6.95, worked out at checkout from the weight of the order and your postcode (see how), typically within 5–10 business days.
