Been using this sensor for almost a year now, it has worked wonderfully. If I had to point something out, it would be that the measurements seem to be in the wrong units, e.g. it is currently measuring `513,000,000 ppm`, while the obviously correct value would be `513 ppm`. Everything else works wonderfully.

Response from ALab Technology | June 16, 2024

Just replace converter code.
https://gist.github.com/9zigen/34a27dd18dc4d4cd09c7b1a3efda8df4

Daniel | May 5, 2024

Good

For Wireless CC LED Driver 12 - 48v

Product very Good. XxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxXxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxXxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Michel | Aug. 30, 2023

I am happy

For 60v Step-down High Brightness LED Driver

Great!!! Very Good driver, does the job.
Small in size and efficient, I use them with a 48v PS and 3x3 10w LEDs with an esp32 for pwm.
Good communication thanks a lot

Hendrik | July 24, 2023

Great module, amazing support!

For Wireless CC LED Driver 12 - 48v

I use the module for my custom homeoffice and workbench lighting setup with high CRI modules. It works very well and the UI is simply amazing.

I needed 3 channels with 0,35A CC and asked the seller if this would be possible. He didn't just answer my question with how the current sense resistor value is calculated, but even had the very uncommon resistors and soldered them in free of charge!

It's not in the description, but the source code can be found on Github. *****

Maurice | May 4, 2023

Excellent seller

For Zigbee CO2 Sensor

I ordered a CO2 sensor from ALab, as this seemed to be one of the best bang for buck ZigBee CO2 sensors available.

I was having issues pairing the first sensor that arrived, but received excellent support from ALab. We attempted various things to make it work, but eventually decided to replace the broken sensor. ALab covered the costs for the return and later messaged me he discovered what the issue was.

The second sensor I received unfortunately got damaged during shipping. This sensor was once again replaced.

The third sensor arrived in good shape and I was able to pair it without any issues. I've been using it with Z2M and Home Assistant for a few weeks now and it's been running great. I am planning on buying a bunch more to cover most rooms in the house.

ALab is an excellent seller with great products and even better support.

Klaus | Feb. 28, 2023

Works perfect

For Wireless CC LED Driver 12 - 48v

I bought it for the sunrise/sunset function for my aquarium and it works perfect. It runs smooth.
Seller is good at answering.

Luke | Feb. 19, 2023

Works perfectly with Zigbee2MQTT

For Zigbee CO2 Sensor

Really fantastic little prebuilt zigbee co2 sensor. Not only one of the cheapest around, but also the most plug-and-play for my MQTT use case. Readings are perfectly accurate and refresh at just the right rate for charting.
It wasn't clear to me from the description, but it can be powered by USB-C - you can ignore the DC input. I couldn't get it to power up connected to a PC, but no issues with any USB charger I tried.
My only complaint is the clearance around the USB-C port. Out of 10 USB-C cables I had lying around, only 2 were able to fit past the case and DC connector. Not going to dock a star for this as I've seen SBCs such as VIM3L with the same issue, but something to be aware of

Kaspars | Sept. 11, 2022

Excellent 4ch zigbee relay

For Zigbee 4 Channel Relay

Works as promissed. Ordered multiple items and I'm using it in various places (garden irrigation valve control, gate control, heated floor control). There are no real alternatives for 4ch zigbee relay... best bet is 2ch-relay on aliexpress. The size of the unit could be smaller, tho.

Matt | Aug. 3, 2022

Great SensairS-8 sensor, and PH sensor with Zigbee2Mqtt

For Zigbee CO2 Sensor

I needed zigbee compatible Sensors with quality components, for use in Home Assistant automations.

ALAB ----has unique designs combining quality sensors and Zigbee communicators.
I use the Data provided by ALAB Zigbee CO2 and PH sensors for monitoring and control of hydroponic grow systems Wirelessly!

I have zero experience programing, but some Zigbee , Z-wave and Home Assistant experience.
I had a difficult time getting all of these "entities " to work together, but....

ALAB gave incredible support of the CO2 and PH sensors that I purchased,
AND further assistance to ensure that they worked nicely in Zigbee2Mqtt and Home Assistant.
A Remarkable Level of Support was provided. Thank you!

I plan on buying several additional Items.

Bram | Sept. 15, 2021

Very happy with the relay. Works as promised.

For Zigbee 4 Channel Relay

Works very well. Out of the box with Zigbee2mqtt as well. I received a board without soldered connectors on the relay side, which was resolved by the seller immediately. Thanks again!

Mikk | March 16, 2021

A very versatile relay block

For Zigbee 4 Channel Relay

When I ordered this 4-channel relay block, I did not expect to use all of the 4 relays, but in fact I ended up using all four relays + even added a useful function for the buzzer.

This is a wonderful board that has worked like a charm. I like a lot that the relays are not connected to power and have both normally-open and normally-closed pins to play with.

Actually, I wrote a small writeup about where I added this relay block: https://dev.to/murjam/making-the-sommer-twist-200e-motorized-gate-smarter-with-node-red-22e

Andrei | Feb. 24, 2021

Stable and great seller communication

For Zigbee Smart Switch

I bought such a board, actually one without the power relay, and satisfied by the stability up to now.
Seller offers great communication also

Tindie

ALab Technology

Overall Rating:

Review Breakdown

Average Ratings

All Reviews

Great sensor

Response from ALab Technology | June 16, 2024

Good

I am happy

Great module, amazing support!

Excellent seller

Works perfect

Works perfectly with Zigbee2MQTT

Excellent 4ch zigbee relay

Great SensairS-8 sensor, and PH sensor with Zigbee2Mqtt

Very happy with the relay. Works as promised.

A very versatile relay block

Stable and great seller communication