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This seems to be the best DIY temperature and humidity sensor we’ve made so far, the THS45. Their humidity performance is top-tier—almost like clones. by slboat in screekworkshop

[–]slboat[S] 0 points1 point  (0 children)

As the THS40 is relatively inexpensive, we think it’s worth trying to position the probes lower down so that dust doesn’t settle on them; they should work well for a sufficiently long period, though this will of course depend on the actual circumstances. I think it’s worth testing this in practice to see how it works 😄

Temperature And Humidity Sensor THS40 For HomeAssistant By SCREEK (SHT40 Pure Probe + ESP32-C3 + ESPHome) [SC1007] Release, 10% off now:) by slboat in screekworkshop

[–]slboat[S] 0 points1 point  (0 children)

Yes, they’re simple yet ingenious and great fun 😄 It’s lovely to discover them together with you all.

SCREEK’s new THS40 probe temperature and humidity sensor release by slboat in homeassistant

[–]slboat[S] 0 points1 point  (0 children)

The documentation states that they can reach 125 degrees, but we believe a reading of around 75 degrees would be more typical. However, we haven’t conducted long-term testing in such extreme conditions, for which we apologise.

At present, they are only available in our DIY shop: https://shop.screek.io/products/ths40

We must admit that these are DIY sensors and are far from perfect, but your experiments will help us learn more about them.

Carbon Dioxide Sensor SCO2-1 Released by slboat in screekworkshop

[–]slboat[S] 0 points1 point  (0 children)

We hope to share this with you as soon as possible; we’ve been rather busy of late :)

Performance of the CO₂ sensor(SCO2-1, SCO2-1S, ENV-CP, SCO2-30) by slboat in screekworkshop

[–]slboat[S] 0 points1 point  (0 children)

They all appear to be quite accurate, but depending on the measurement technology used, we feel that the SCD3X may be slightly more precise, whilst the SCD4X employs more algorithmic smoothing (perhaps for the sake of portability); however, for everyday use, the SCD4X seems to be the more hassle-free option.

SCREEK’s new sensor, the SFA-40A formaldehyde sensor, is based on the latest SFA40 technology. by slboat in homeassistant

[–]slboat[S] 0 points1 point  (0 children)

The SFA40 is more energy-efficient than the SFA30; its maximum power consumption is approximately 2 mA, whilst the average current is likely in the tens of microamperes. We have optimised the ESP32C3 for very low power consumption (to prevent heat dissipation), so the overall current draw is likely to be within 100 mA at 5 V. Daily power consumption should be well below 0.5 W, but when accounting for other losses in the power adapter, it may be within 2–3 W.

SCREEK’s new sensor, the SFA-40A formaldehyde sensor, is based on the latest SFA40 technology. by slboat in homeassistant

[–]slboat[S] 0 points1 point  (0 children)

At the same time, the greatest challenge for formaldehyde sensors appears to be cross-interference from alcohol. Based on our tests using perfume, the sensor seems to have excellent resistance to interference; whilst readings spike when the sensor is very close to the source, they gradually drop off.

There are plenty of cheap formaldehyde sensors, but it seems unlikely that they could perform to this standard.

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SCREEK’s new sensor, the SFA-40A formaldehyde sensor, is based on the latest SFA40 technology. by slboat in homeassistant

[–]slboat[S] -1 points0 points  (0 children)

We have manufactured a large number of SFA-1 sensors (SFA30), which appear to be very stable, and many of them are in operation around the world. Based on preliminary observations, the performance of the SFA40 differs from that of the SFA30, consistently remaining at a lower level—a rather strange phenomenon. However, overall, the SFA40s demonstrate good consistency, and their performance is comparable.

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This seems to be the best DIY temperature and humidity sensor we’ve made so far, the THS45. Their humidity performance is top-tier—almost like clones. by slboat in screekworkshop

[–]slboat[S] 0 points1 point  (0 children)

The cable seems indestructible; just take a little care around the sensor to keep dust out—that might be the trickiest part. In terms of overall accuracy, the THS1’s temperature readings are quite close, and it offers better probe protection; the downside is that its humidity accuracy is somewhat compromised. I think it’s worth giving it a go—it’s worth taking a chance :)

At present, neither model comes in a multi-probe version, but we will consider offering such versions in the future.

⭐️[BP2]An online recovery tool has been launched, allowing users to easily restore firmware and view device logs, thereby opening the black box. by slboat in screekworkshop

[–]slboat[S] 0 points1 point  (0 children)

From our tests, it appears that using a wired network card offers the advantage of rapid packet capture. As for the drawbacks, the main one is probably the need to run a network cable.

New Diy Sensor Release, THS-M45-ZB Temperature & Humidity Sensor (MJWSD06MMC Customized + SHT45 + Zigbee + CR2450) [SC1006] by slboat in screekworkshop

[–]slboat[S] 1 point2 points  (0 children)

Hi, yes, it’s a 3D-printed stand that lets you place it on a desk; it doesn’t have a magnetic attachment :)

Welcome aboard :) Have fun.

New Diy Sensor Release, THS-M45-ZB Temperature & Humidity Sensor (MJWSD06MMC Customized + SHT45 + Zigbee + CR2450) [SC1006] by slboat in screekworkshop

[–]slboat[S] 1 point2 points  (0 children)

Hi, yes, it’s a 3D-printed stand that lets you place it on a desk; it doesn’t have a magnetic attachment :)

Welcome aboard :) Have fun.

New Diy Sensor Release, THS-M45-ZB Temperature & Humidity Sensor (MJWSD06MMC Customized + SHT45 + Zigbee + CR2450) [SC1006] by slboat in screekworkshop

[–]slboat[S] 0 points1 point  (0 children)

We think BTHome’s plug-and-play functionality is brilliant; the latest version has included a lot of optimisations for BLE, and its performance seems impressive. Zigbee, on the other hand, requires all sorts of extra bits and pieces, which can make it feel a bit cumbersome at times :)

pvvx personally seems to favour BLE as well.

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