SONOFF SNZB-02D Zigbee LCD Smart Temperature Humidity Sensor,Works with Alexa/Google Home, SONOFF ZigBee Bridge Is Required, Battery Is Included

I bought these to use with Home Assistant, and the setup was surprisingly easy. They connected quickly and were recognised without much effort, which is always a bonus when dealing with smart home devices. The screen is fairly simple but clear, showing the temperature in a way that’s easy to read at a glance. It doesn’t try to do anything overly complicated, which I actually prefer. The temperature readings also seem very accurate based on what I’ve compared them with around the house. For the price, they offer really good value and do exactly what I needed them to do. Overall, a straightforward and reliable option if you want an affordable temperature sensor that works well with a smart home setup.

You know how the things are looking like when you are a home automation fan? You have plenty of sensors and screens in the house but you still don't have enough. ☺️ Despite the fact that I already have in all the rooms accurate temperature/humidity sensors from Shelly - connected via Bluetooth, I noticed that there is a long way until someone (ok, my wife as always 😂) will actually read their values using the screens from the walls or phones. This encouraged me to look for some simple and nice looking screens, but also having a good quality and durability. Considering that I'm already using several other gadgets from Shelly, Zooz, Aeotec, Philips, Innr, Zipato, TpLink and Sonoff and I'm very happy with their simplicity and quality, my choice was mainly made by the price and offers that these brands were offering at the moment of buying. Therefore, I found that Sonoff came with the best balance price/quality. Connectivity was not so important as I'm using both Zigbee and Z-Wave protocols (AEOTEC for Zigbee and ZOOZ for Z-wave). I knew, therefore, that I'll have no issues connecting a SONOFF sensor to an AEOTEC zigbee module. Functionality is good, see the picture attached. This is also confirmed by the Shelly temperature/humidity sensors from the house. The screen is simple and has a nice contrast and if I have no complaints from my wife, then it worked 100%. 😎 There are two variants of attachment. On the wall using a strong magnet and on the table. What I like about them is that on the wall you can stick the magnetic part using 3M double tape already attached. That plastic part is like a pocket for the sensor, you can - if you want to move the sensor somewhere more visible or you wany to measure the temperature in a different place - you can literally take the sensor from its pocket and place it on a table. Battery type is CR2450. I bought the pack of two sensors and I had to replace the battery to one of them as it was empty, while the other one had a full battery. I had a Duracell CR2450 spare battery already so this was a simple fix for me. Not sure about the battery life overall, I'll be back here later for updates regarding this matter. But the lesson will be from this episode to have a CR2450 spare battery as you never know when you need one ;)

Easy to connect with my Zigbee controller. Downside is that this is my second set of two, and once again, the supplied batteries were almost flat, and until I replaced them, the devices wouldn't maintain their connection. Misleadingly, the LCD display shows full battery, but when you look at the device in Smart Life, the true state of the battery is revealed. The battery is easily changed, but any buyer should add replacement batteries to the basket at the time of purchase. *** Updated following interaction with the customer support: Sonoff's customer support followed up on the review, to try to track down the discrepancy between the battery readings as shown on the device and the readings shown through the SmartLife app. It appears that they don't test with or support the Tuya APIs, and my Zigbee controller isn't one they've tested with. I'm not going to change my whole infrastructure when the devices are working fine with a new battery, but they get an extra star 3* -> 4* for making a decent effort to resolve the issue.

Interessante termometrino per interni, dal costo molto modesto. E' carino da vedere: è piuttosto piccolino, ha un display grande e ben leggibile, e le temperature e l'umidità misurate sono precise. Essendo Zigbee, può essere usato come termostato. Io l'ho preso per regolare una stufetta in bagno. Ho preso una stufetta Tuya, che controllo con un pulsante e un termometro Zigbee. Oltre alla temperatura e all'umidità, trasmette anche il livello della batteria interna, che dura tantissimo.

Great Temperature /Humidity sensor. Good accuracy and integrates well into my Home Assistant automation through the zigbee integration.

I gave chance to buy 4 of these and I was not disappointed. It paired to CONBEE II quickly and it is few months already it sits on top of one of my shelfs providing quite accurate measurements. I can recommend this seller and the product.

Meine Rezesion bezieht sich auf die Zigbee-Temperatursensoren von SONOFF SNZB-02 2er Set (SNZB-02 2PCS). Die Inbetriebnahme ist kinderleicht. Man muss das Gehäuse zunächst öffnen (mit einem Schlitzschraubenzieher ist es nämlich wirklich einfach und sicher, und ich kann nicht nachvollziehen, wie das hier so dermaßen bemängelt wird) und die Plastikplatte unter der Knopfzellbatterie entfernen, dann ist das Gerät auch schon zur Koppelung bereit. Das Gerät wurde problemlos in zigbee2mqtt (über Sonoff Zigbee 3.0 USB Dongle) erkannt und automatisch über die Integration an Homeassistant weitergeleitet. Die Messwerte, soweit ich beurteilen kann (mit zwei anderen Thermometer von anderen Herstellern), ist präzise genug für meinen Zweck. Wir haben bereits einen Sensor in den Kühlschrank gestellt, um die Kühlungstemperatur zu überwachen. Wie man aus den Bildern sehen kann, hat das wirklich sehr gut funktioniert. Die gemessene Temperatur, gemessen im mittleren Fach, stimmt weitgehend mit der eingestellter Temperatur überein. Insgesamt machen die Temperatursensoren einen ziemlich guten Eindruck und ist für die Smart Home Integration mit Zigbee (keine Alexa und co. oder Zigbee-Hub mit proprietären Zusatzprotokollen wie Hue Bridge) und MQTT sehr gut geeignet. Integration in Alexa und so habe ich nicht probiert, da ich entsprechende Hardware nicht benutze und auch nicht benutzen möchte. Daher Empfehlung für jeden, der ein bisschen mit Smart Home auskennt. Ich bin gespannt, wie lang die Batterie hält.

Very nice