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SensorPush HT1
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In this article 10 sections
- Pros and Cons
- The Swiss Sensirion Sensor: What ±0.5°F Means in Practice
- Bluetooth Range and Remote Monitoring
- SensorPush HT1 vs HT.w: Which Should You Buy?
- Why Does the HT1 Cost More Than an Inkbird or Govee?
- SensorPush HT1 vs the Alternatives
- How to Replace the SensorPush HT1 Battery
- SensorPush HT1 Not Connecting or Syncing?
- Frequently Asked Questions
- Verdict
The SensorPush HT1 Smart Temperature and Humidity Sensor: pocket-sized, screenless, Swiss-made sensor, no subscription required.
Lena Thornton here, Weather Station Analyst at The-Weather.com. The SensorPush HT1 Smart Temperature and Humidity Sensor, sometimes referred to simply as the SensorPush HT1 sensor or the HT1 hygrometer, sits at the top of the consumer Bluetooth sensor market on accuracy. At ±0.5°F it beats the Govee H5179 (±0.54°F) and is considerably more precise than budget alternatives like the Inkbird IBS-TH2 (±1.8°F).
It is a compact, screenless data logger: measuring just 1.57 × 1.57 × 0.65 inches, it slides easily into a cigar humidor, instrument case or wine fridge without taking up meaningful space. You will not read the temperature by glancing at it: you open the app. The free SensorPush app is available for both Android and iOS and is widely regarded as one of the best-designed monitoring apps in this category, with clear historical graphs, customisable alert thresholds and CSV data export. What you get in return for skipping a built-in display is a level of accuracy, app quality and long-term reliability that makes it the preferred choice for cigar humidors, wine cellars, instrument cases, greenhouses and any environment where conditions directly affect something valuable.
SensorPush HT1: Verified Specifications
Pros and Cons
- ±0.5°F Swiss Sensirion sensor: best accuracy in this price range
- Logs every 60 seconds: minute-by-minute tracking
- 325 ft Bluetooth range: longest in category
- 20 days on-device storage without Bluetooth connection
- No subscription required
- Highly rated app with graphs, alerts and data export
- 1–2 year battery life on a single CR2477
- Compatible with Home Assistant via Bluetooth
- No display: readings only visible in the app
- Bluetooth only without the G1 gateway: no remote monitoring out of the box
- Remote monitoring requires separate G1 gateway purchase
- Not water-resistant: choose HT.w for humid environments
- Higher price than Govee and Inkbird alternatives
- CR2477 battery less common than AAA
The Swiss Sensirion Sensor: What ±0.5°F Means in Practice
The SensorPush HT1 uses a Sensirion SHT sensor: a Swiss-made component used in pharmaceutical cold chain monitoring, laboratory equipment and medical devices. At the consumer level, ±0.5°F temperature accuracy is exceptional. Most budget hygrometers specify ±1.8–2°F, meaning on any given day your reading could be 2 degrees off the true value. The HT1 stays within half a degree.
For cigar humidors and wine cellars, where a 2°F variance over time affects the storage outcome, this accuracy is not a marketing claim: it has practical consequences. For greenhouses where you are managing plant health within a specific temperature window, the HT1 gives you confidence in the data you are acting on.
Accuracy comparison
| Sensor | Temp Accuracy | Humidity Accuracy | Price Tier |
|---|---|---|---|
| SensorPush HT1 | ±0.5°F | ±3% RH | Mid-premium |
| Govee H5179 | ±0.54°F | ±3% RH | Mid |
| ThermoPro TP55 | ±1°F | ±2% RH | Budget |
| Inkbird IBS-TH2 | ±1.8°F | ±3% RH | Budget |
Bluetooth Range and Remote Monitoring
The HT1 has a 325-foot Bluetooth range line of sight: the longest of any sensor in this comparison. Through walls, floors and furniture, practical range is typically 50–100 feet depending on construction materials. For most home environments, this is sufficient to monitor from anywhere in the house with a phone.
Remote monitoring: the G1 gateway
Out of the box, the HT1 is Bluetooth-only. To check readings from outside the home, receive push alerts remotely, or access data when your phone is not in Bluetooth range, you need the SensorPush G1 Wi-Fi Gateway (sold separately). The gateway connects to your 2.4GHz Wi-Fi and uploads sensor data continuously to the SensorPush cloud, accessible from anywhere.
There is no subscription fee for gateway use: it is a one-time hardware purchase. Once set up, the combination of HT1 and G1 gives you remote monitoring, push alerts and unlimited cloud data history without any ongoing cost.
SensorPush HT1 vs HT.w: Which Should You Buy?
| Feature | HT1 | HT.w |
|---|---|---|
| Sensor | Swiss Sensirion | Swiss Sensirion |
| Temp accuracy | ±0.5°F | ±0.5°F |
| Humidity accuracy | ±3% RH | ±3% RH |
| Water resistance | ✗ Not rated | ✓ Water-resistant |
| Best for | Dry indoor environments | Humid/damp environments |
| Price | Lower | Higher |
Both models use the same Swiss Sensirion sensor and achieve the same accuracy. The only difference is the water-resistant housing on the HT.w. Choose the HT1 for wine cellars, humidors, instrument cases, indoor rooms and dry storage. Choose the HT.w for greenhouses, refrigerators, freezers, wine fridges and any environment where condensation or moisture is present.
Why Does the HT1 Cost More Than an Inkbird or Govee?
Many buyers wonder why the SensorPush HT1 costs more than alternatives like the Inkbird IBS-TH2 or Govee H5075. The answer is not extra features: the HT1 has no display, no Wi-Fi and no push alerts out of the box. The premium is entirely about measurement quality.
SensorPush prioritises sensor precision over built-in screens or connectivity. The Swiss Sensirion component inside the HT1 is the same class of sensor used in pharmaceutical cold-chain monitoring and laboratory equipment. At ±0.5°F, you are paying for readings you can actually rely on when the data matters, not a feature list that looks impressive on a comparison chart.
For cigar collectors, wine enthusiasts, musicians protecting valuable instruments and growers managing plant health, the difference between ±0.5°F and ±1.8°F is not marketing: it is the difference between knowing your conditions are correct and guessing. That is why the HT1 consistently appears at the top of recommended sensor lists in hobbyist and professional communities alike.
SensorPush HT1 vs the Alternatives
| Feature | SensorPush HT1 | Govee H5179 | Inkbird IBS-TH2 | Govee H5075 |
|---|---|---|---|---|
| Temp accuracy | ±0.5°F | ±0.54°F | ±1.8°F | ±0.54°F |
| Logging interval | 60 sec | 2 sec | Configurable | Configurable |
| Wi-Fi | Gateway add-on | ✓ 2.4GHz built-in | ✗ | ✗ BT only |
| Subscription | ✓ None | ✓ None | ✓ None | ✓ None |
| On-device storage | 20 days | None (cloud) | 30,000 records | None (cloud) |
| Display | ✗ App only | ✗ App only | ✗ App only | LCD + app |
| Home Assistant | ✓ Native BT | Via cloud | ✓ Native BT | Via cloud |
| Best for | Precision · humidors · wine | Remote Wi-Fi monitoring | Local data logging | Bedroom · basic app |
Who the SensorPush HT1 Actually Suits
- Cigar collectors. The HT1 is widely regarded as the gold standard for humidor monitoring. The ±0.5°F accuracy and ±3% RH readings give you confidence that your collection is held at the right conditions. Many serious collectors run multiple HT1 units across different humidors.
- Wine cellar owners. Long-term temperature stability is critical for wine storage. The HT1's minute-by-minute logging and unlimited app history let you identify temperature fluctuations over months and correlate them with cellar conditions.
- Greenhouse growers. For environments where you are managing plant health within tight temperature and humidity windows, the HT1's accuracy matters. Pair with the HT.w if the greenhouse is humid or prone to condensation.
- Musical instrument owners. Guitars, violins and other wooden instruments are highly sensitive to humidity. The HT1 placed in an instrument case or music room gives accurate ongoing monitoring without any subscription cost.
- Home Assistant users. The HT1 integrates natively via Bluetooth without any cloud bridge, making it one of the cleaner local-first sensor options for home automation.
The SensorPush HT1 is not right for you if:
- You want to read conditions at a glance: The HT1 has no display. For a sensor with a built-in screen, the ThermoPro TP55 is the better choice.
- You need remote monitoring without extra cost: Wi-Fi remote monitoring requires the G1 gateway. If you want built-in Wi-Fi without an extra purchase, the Govee H5179 connects directly to your router.
- You need water resistance: The HT1 is not water-resistant. For greenhouses, wine fridges or anywhere with humidity above 80% for sustained periods, choose the SensorPush HT.w instead.
- Budget is the priority: The HT1 costs more than the Inkbird IBS-TH2 and Govee H5075. For general bedroom or room monitoring where ±0.5°F precision is not required, a cheaper sensor does the job.
How to Replace the SensorPush HT1 Battery
The HT1 uses a CR2477 coin cell battery. SensorPush specifies 1–2 years of typical battery life. Battery replacement is straightforward and does not erase any data.
- Open the rear cover. Use a coin to twist the battery compartment cover anticlockwise. It lifts away cleanly without any tools.
- Note the polarity. The positive terminal faces up in the compartment. Check the marking before inserting the new battery.
- Insert the new CR2477. Press firmly until it seats correctly. The positive terminal faces the marked direction.
- Replace the cover. Twist clockwise until it clicks. The sensor restarts automatically within a few seconds.
- No data is lost. The HT1 retains its pairing and 20-day on-device log during battery replacement. You do not need to re-pair or reset the device.
CR2477 batteries are available from most electronics retailers. They are less common than AAA but widely available online.
SensorPush HT1 Not Connecting or Syncing?
Most HT1 connectivity issues are resolved by one of the following steps:
- Check battery level. A low CR2477 causes intermittent Bluetooth drops. If the sensor has been in use for over a year, replace the battery first before troubleshooting anything else.
- Move closer to the sensor. Initial sync requires the phone to be within 30 feet. Once synced, the full 325 ft range is available.
- Force-close and reopen the SensorPush app. The app occasionally needs a full restart to detect a nearby sensor after a period of inactivity.
- Remove and re-add the sensor. In the app, go to Devices, remove the HT1, and add it again. On-device data is retained during this process.
- For gateway issues: Restart the G1 gateway by unplugging it for 30 seconds. Confirm your router is broadcasting on 2.4GHz: the G1 does not support 5GHz.
- Check for firmware updates. Open the SensorPush app and check Settings for available firmware updates. Updates resolve many connectivity issues in older firmware versions.
The official SensorPush support page at support.sensorpush.com includes a full troubleshooting guide and PDF manual covering gateway setup, alert configuration and calibration. For persistent issues, SensorPush's customer support is widely praised in owner reviews for responsiveness.
Frequently Asked Questions
How accurate is the SensorPush HT1?
The SensorPush HT1 achieves ±0.5°F (±0.3°C) temperature accuracy and ±3% RH humidity accuracy per official SensorPush specifications. The Swiss-made Sensirion sensor makes it one of the most accurate consumer hygrometers available at this price.
What is the difference between SensorPush HT1 and HT.w?
Both use the same Swiss sensor and achieve the same accuracy. The HT.w adds a water-resistant build for humid or damp environments. Choose the HT1 for dry indoor use; choose the HT.w for greenhouses, wine fridges or anywhere with sustained high humidity.
Does SensorPush require a subscription?
No. The SensorPush app and all data logging features are completely free. The only optional hardware purchase is the G1 Wi-Fi Gateway for remote monitoring, which carries no ongoing subscription fee.
What battery does the SensorPush HT1 use?
The HT1 uses a CR2477 coin cell battery with a typical life of 1–2 years. It is user-replaceable with no tools required. No data is lost during battery replacement.
What is the range of the SensorPush HT1?
325 feet (100 metres) line of sight via Bluetooth 5.0. Through walls and obstructions, practical indoor range is typically 50–100 feet. For unlimited range, the G1 Wi-Fi Gateway enables remote monitoring from anywhere.
Who owns SensorPush?
SensorPush was created by Cousins & Sears Creative Technologists, a New York-based creative technology studio. It is a US-based company with development and support handled in-house. Several sensor models are made in the USA.
Verdict
The SensorPush HT1 is the most accurate Bluetooth hygrometer in its price range. The Swiss Sensirion sensor, minute-by-minute logging, 325-foot Bluetooth range and no-subscription app make it the right choice for anyone who needs reliable long-term data for a cigar humidor, wine cellar, instrument case or greenhouse. Its limits are clear, no display, Bluetooth-only without the gateway, not water-resistant, and they matter if you need remote monitoring or a visible readout. For precision monitoring in controlled indoor environments, nothing in this price range touches it.
If you need Wi-Fi built in, the Govee H5179 is the stronger choice. If budget is the priority, the Inkbird IBS-TH2 covers basic logging at a lower cost.
We compared hygrometers for greenhouse, bedroom and home use, from simple displays to precision sensors.
Sources
All specifications from the official SensorPush HT1 product page and SensorPush support documentation. No manufacturer compensation was received.
Lena Thornton
Weather Station Analyst & CWOP Contributor. Lena has researched, reviewed and analysed weather stations and environmental sensors from AcuRite, Ambient Weather, Davis Instruments, Govee, ThermoPro, SensorPush and Inkbird. Published July 2026.
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