Tindie

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

Product very Good. XxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxXxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxXxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Lennard | Feb. 24, 2024

Does what it promises

Great device, works as advertised. Seller is also very responsive if you have any further questions.

Daniel | Feb. 17, 2024

Excellent product.

I am extremely happy with the relay. I have integrated it into my sliding gate motor. I'm using it in Home Assistant and Zigbee2MQTT. It would be nice if there was a permanent integration into Zigbee2MQTT rather than relying on external convertors.
Link to picture with device installed:
https://1drv.ms/i/s!Aq9XPrZGYggRhK5GoF6iq9CIfzhEIA?e=pZ6CkF

Willem | Sept. 6, 2023

The relais works, but not compatible with Homey Pro 2023

For 60v Step-down High Brightness LED Driver

Can be added tot Homey Pro 2023. But it sees it as just a single relay. I specifically needed this 4 channel relay to adjust my gas-powered fireplace. Would be great if software could be added so the device is compatible with Homey Pro. If so, 5 stars.

Michel | Aug. 30, 2023

I am happy

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!

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

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

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

Edgar | Feb. 22, 2023

I bought this! I love it!

Very useful electronics to control high power LED's.
Variety of settings brings simulation of daylight and night in the room.
Humans, fish, reptiles, plants love it.

:To Developer, good work.

Luke | Feb. 19, 2023

Works perfectly with Zigbee2MQTT

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

Charlie | Oct. 24, 2022

Question about contact closures

Hi,

Received the products (4-channel Zigbee Relay in DIN Case), and am very happy with the shipping and packaging. The cases are top-notch!

I was able to get my HA controller (Hubitat), to recognize the device and the discreet inputs and outputs, but on the inputs, they seem to be a latched switch. When I short them, they show open and they will not show closed until I short them again. Is there a way to make them only show open/ closed while the short is in progress?
Also, is there a reason why you could not make these work on say 12-48vdc? Curious as to your decision of high voltage considering that the relays are not tied to V-in?

Thanks,
Charlie-

Response from ALab Technology | Oct. 24, 2022

The device can operate from 5 - 12 volts but you will have to connect the power directly to the output of the AC / DC converter.
In the next version I will add the ability to power from 12 - 48 volts.

About the outputs, you can do it, but you need to update the firmware. write to me via "Contact Store"

Kaspars | Sept. 11, 2022

Excellent 4ch zigbee 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

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.

Andrzej | March 7, 2022

Well built and works as advertised

I successfully integrated the device into my home-system on the first day after receiving it so I would say it is pretty user-friendly. I like the case and connectivity, the buttons labelled and the firmware works :)

Bram | Sept. 15, 2021

Very happy with the relay. Works as promised.

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!

Paolo | Sept. 8, 2021

ALab Technology Spain Zigbee 4 Channel Relay

There is no compatibility with deconz (unlike what is stated). The status of the relays is not reported.

Response from ALab Technology | Sept. 8, 2021

Sorry for the bad experience.
Have you tried binding endpoints with the coordinator?

Mikk | March 16, 2021

A very versatile relay block

For WiFi 5CH 48V Constant current led driver

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

Matt | Feb. 28, 2021

Fun project board with good funcitonality!

Impressive project board with a number of features, both to run as standalone controller/driver or integrate with another controller (MQTT / API). Documentation could be improved, though overall very pleased with the build and functionality.

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

Timothee | Sept. 18, 2020

Great little relay board

Hi!
I well received the board, and i have to say, it is great.

I understand that the stock firmware is based on the configurable ptvo.info firmware.
Could you let us know what are the parameters set in the firmware ? Pin number associated with each output, inputs linked to output ? Are the push button connected to the same terminal as the contacts available on terminals ?

Is it possible to set up a relay to make contact only for a limited time ? (to emulate a push button).

Response from ALab Technology | Sept. 18, 2020

Hi,
the firmware emulates ptvo

INPUTS: P0.0, P0.1, P0.2, P0.3 (all linked to outputs, push buttons connected to the same terminals)
LED_STATUS: P1.7
RELAYS: P1.6, P1.5, P1.4, P1.3
BUZZER: P1.2

Do you want to configure via a cluster parameter or flash a new firmware?
I can make a new firmware where it will be possible to dynamically change the operating mode of the inputs. but you need to flash a new firmware by CC Debugger.

Sebastian | Aug. 11, 2020

Just works

Just switched it on and it joined the zigbee2mqtt-Network.

Edit: Documentation was updated, so I upgraded the rating by one star.
But it would also be nice to see more documentation:
- How to configure the buttons? (Did not use them yet)
- Which firmwares are available? Open Source?

The product itself works great. I use it for shutters and garage door.

Response from ALab Technology | Aug. 11, 2020

Sebastian, thanks for the feedback!
Added instructions to the product description.
To reset, press button 1 for more than 20 seconds.

Pepijn | June 15, 2020

Works like a charm!