Inkbird IBS-TH1 Plus Bluetooth Temperature and Humidity Sensor (Humidity Temperature Recorder)

What it is and why people buy it

The Inkbird IBS-TH1 Plus is a Bluetooth temperature and humidity sensor/recorder aimed at anyone who needs to keep an eye on indoor conditions over time—not just a quick reading in the moment. On the box side of things, you get an LCD display for at-a-glance temperature, humidity, battery level and a Bluetooth icon, plus the ability to record data and review it later.

In practice, this is the kind of device you reach for when you care about consistency: a nursery room where humidity matters, storage areas, a garage where conditions can swing, or more specialist spaces like reptile setups and greenhouse planting. It’s not perfect—your results still depend on where you place the sensor and whether the probe is suitable for your environment—but as a “set it up and track it” recorder, it does make sense.

Key features in everyday terms

The IBS-TH1 Plus is designed around a few practical ideas: local reading, Bluetooth viewing, and recorded history.

First, there’s the LCD screen. It shows the temperature, humidity, battery level and Bluetooth status, so you’re not forced to rely on your phone just to confirm what’s happening right now. There’s also a conversion control for Celsius/Fahrenheit using the side buttons, which is handy if you think in different units.

Second, Bluetooth support is built for flexibility. A single mobile phone can connect to multiple IBS-TH1 Plus units at the same time, so you can compare different rooms/scenes. And the other direction works too: one IBS-TH1 Plus can be viewed simultaneously on multiple phones. This is useful in households or shared workshops where more than one person wants access.

Third, it’s a recorder, not only a monitor. You can capture data points and then view them via the app or export detailed data in CSV format for closer analysis.

What you can record (and the main limitations)

On the recording side, the IBS-TH1 Plus uses a default interval of 1 minute to record up to 20 days of data (depending on your settings). You also can adjust the interval to 10s, 30s, 1min, 2min, 5min, 10min, 30min.

That interval choice is where you’ll feel the trade-off. If you set very frequent sampling (like 10s), you’ll likely reach the recording window sooner, if you choose longer intervals, you stretch the timeline but you’ll miss short spikes.

Another limitation worth noting: temperature and humidity performance depends on the sensing setup. The temperature range mentions an internal sensor and an external probe, which suggests you’re not locked to just one measurement style. If your use relies on measuring something specific (for example, a location where you need the external probe), you’ll want to confirm your placement and probe arrangement matches your scenario.

Tech specs that matter before you buy

Tech summary

• Dimensions: 63.5mm x 20mm
• Weight: 53g
• Temperature range (internal sensor): -40 ~ 60 °C
• Temperature range (external probe): -40 ~ 100 °C
• Humidity range: 0 ~ 99% RH
• Data recording capacity: up to 30,000 data points
• Default recording interval: 1 minute (up to 20 days of data)
• Adjustable recording interval: 10s, 30s, 1min, 2min, 5min, 10min, 30min
• Power: 2 x AAA batteries (dry) (not included)

A small practical point: the batteries aren’t included, so you’ll want to have AAA cells to hand before you commit to setting it up.

Where it shines in real use

This recorder is best when you want to track patterns, not just capture one moment.

For example, imagine setting up in a nursery area. You might notice humidity drifts during the day and again overnight. With the IBS-TH1 Plus you can monitor what’s happening on the LCD immediately, then later review the logged history in the app (and export to CSV if you want to inspect it properly). The adjustable recording intervals also let you match the urgency of the environment: tighter intervals for faster-changing spaces, longer intervals for steadier ones.

It also fits well where multiple points matter. A garage plus an adjoining storage cupboard, or two different reptile enclosures—because one phone can connect to multiple IBS-TH1 Plus units at once, you can keep the data organised without constantly swapping devices.

Pros, cons, and who should consider it

What stands out

• Built-in LCD gives you a quick read (temperature, humidity, battery, Bluetooth status) without needing your phone every time.
• Bluetooth connectivity is multi-device friendly: multiple sensors to one phone, and one sensor visible to multiple phones.
• Recording with adjustable intervals and data export in CSV format for deeper review.
• LCD plus unit switching (Celsius/Fahrenheit) via side buttons adds practical day-to-day convenience.

Where you might want to think twice

• It uses 2 x AAA batteries and those aren’t included, so factor in the cost/time of sourcing batteries.
• If you only need a one-off reading, a recorder format can feel like overkill, you’re paying for history and export, not just instant display.
• The value depends on placement and your interval settings—set sampling too sparse and you can miss quick swings, set it too frequent and you compress the time window.

Worth considering if

You want a Bluetooth temperature and humidity recorder for rooms or environments where tracking over time is genuinely useful—baby rooms, storage, labs, wineries cellars/fermentation-style rooms, garages, reptile setups, greenhouse planting, and similar.

It may not suit you if

You’re after a simple local display only, with no interest in recording or reviewing history. Or if you need battery-free operation, high-frequency monitoring for long periods, or you’re expecting “plug in and forget” without any interval planning—this can feel more involved than it needs to be.

What to check before ordering

Before you buy the Inkbird IBS-TH1 Plus, it’s worth checking: - Whether you need internal temperature sensing only, or whether the external probe measurement range is relevant to your intended setup. - Your preferred recording window and how frequently conditions change in your environment, since the interval settings (10s to 30min) affect how long you can record. - That you’re ready to use 2 x AAA batteries (dry), as they’re stated as not included. - Where you plan to mount the sensor (it’s described as having a unique magnetic adsorption design), so it’s positioned where air movement and airflow are representative of the space you’re trying to measure.

In the box

The provided details don’t list exact pack contents beyond the fact it requires 2 x AAA dry batteries (not included). If you want to be completely sure before setting up, it’s worth checking what’s listed in the amazon UK listing “In the box” section.

Is it worth it?

Buying the Inkbird IBS-TH1 Plus makes sense if you want more than a live temperature/humidity snapshot—specifically, if you’ll use the recording intervals to build a timeline you can review in the app or export to CSV. It’s also a solid choice when you want to track multiple locations with one phone, rather than juggling separate readings.

You may want to skip it if you only need occasional on-screen readings and don’t care about logged history, or if you’re not prepared to set an interval that matches how quickly your environment changes. Like most Bluetooth data loggers, the “best” experience depends heavily on correct placement and smart interval selection.