Product description
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SNZB-02D LCD Indoor Zigbee Intelligent Temperature Humidity Sensor
Supports voice control. Just ask ‘Alexa’ to instantly know the temperature of any room you’ve placed the SNZB-02D in.
3-installation methods Durable bracket, built to last, no matter what type of installation
3 installation methods of SNZB-02D Zigbee LCD Zigbee Temperature Humidity Smart Sensor are suitable for different areas.It can stand on the table, magnetically attach to metal surface, or adhere to any smooth surface with included 3M adhesive.Ideal for baby room, bedroom, greenhouse, reptile terrarium, humidifier, cellar, incubator or other areas. 
SNZB-02D supports application alerts Do you want to keep the ambient temperature or humidity at a comfortable level?
Set the desired temperature or humidity range. Once the temperature or humidity exceeds the pre-set range, you will receive an instant alert from the app.
Specification
Wireless connections: Zigbee 3.0
Battery model: CR2450(3V) & Battery life: 2 years
Working temperature: -9.9-60°C
Working humidity: 5~95%RH(non-condensing)
Remote Control
Remotely check ambient temperature and humidity to understand your home environment.
Remote Reminder
Receive push notifications when temperature and humidity exceed your defined comfort range.
Supports zigbee gateways using the Zigbee 3.0 protocol and is compatible with most hubs.
Extra Large Coverage
With a coverage of up to 120m/400ft (unobstructed and in ideal conditions), let you check the latest data anytime.
Works with Home Assistant
Add SONOFF devices to Home Assistant for your home automation through eWeLink add-on.
What gateways are compatible with SNZB-02D？
The ZigBee gateway types compatible with SONOFF SNZB-02D are as follows: SmartThings hub V3, AeoTec Smart Home Hub V3, Echo Plus 2nd, Echo 4th Gen, Echo Show 2nd, SONOFF ZBBridge-P, ZBBridge,ZBDongle-P, ZBDongle-E, iHost, NSPanelPro, Google Home
How to pair the SNZB-02D with ZigBee hub?
Press the tiny little button on the back for about 5 seconds until the little broadcast icon starts flashing on the display, then open your ZigBee Hub to search and pair the SNZB-02D.
Product Dimensions : 2.34 x 2.34 x 0.72 inches; 0.01 ounces
Item model number : SNZB-02D
Batteries : 2 C batteries required. (included)
Date First Available : April 27, 2023
Manufacturer : SONOFF
ASIN : B0C27TLFV1
Best Sellers Rank: #3,123 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #27 in Indoor Thermometers
Customer Reviews: 4.0 4.0 out of 5 stars 1,568 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Note: SNZB-02D needs to be used with Zigbee Hub
【Remote Real-time monitoring】SNZB-02D sensor will monitor the temperature and humidity in real time on the APP remotely or display screen, with up to 120m/400ft coverate
【High Accuracy & 5s Fast Refresh】Built-in Swiss-made smart hygrometer sensor that gives you more accurate readings maintaining ±0.2°C/±0.4°F accuracy in temperature and ±2%RH accuracy in humidity, refreshes readings every 5 seconds
【Large LCD screen display】Use large LCD display to view the real-time values of temperature humidity clearly and dynamically, the intuitive display icons let you check the room conditions and battery status even easier than ever
【App notifications】You’ll receive instant alerts from your phone when the temperature or humidity exceeds your set comfort level
【Data Storage & Export】Up to half-year free cloud storage, and most accurate enough to view hourly data, you can also check the highest and lowest values at any hour or day and data can be exported as files
Josh –
Good device, works great with Hubitat
I have quite a lot of Sonoff devices connected to several Hubitat hubs.These temp/humidity display sensors connected and functions seamlessly as expected.The screen is a decent size, is fairly clear and legible.I do wish the characters were a tiny bit thicker, but it’s not a problem. The screen surface can reflect quite a bit of light, but placement of the device can help with that.If the last two statements are a bigger deal for you, I recommend looking at the similar device by ThirdReality instead.Mounting options for this Sonoff device are great. Both the device and supplemental “dock” are magnetic. Using the dock to magnetically attach it to something allows you to remove it and place it somewhere else quickly. We just have the device itself magnetically attached to the side of a fridge.The dock comes with 3M tape so that could be used too.The kickstand swings down from the top of the device, it works well but has just one real position setting, but because it swings down you can’t really angle the device more vertical.This isn’t a big issue but it would help address some of the reflectiveness of screen.As far as accuracy is concerned, it has been pretty accurate based on my limited testing.I tested it for over a week of it sitting right next to the similar ThirdReality device and an old dumb temp/humidity display.All three were within a degree and humidity percentage of each other.If one was able to accurately calibrate it or had more advanced sensors, offsets could easily be added in whatever smart hub is used.When I finally placed the device in its final location, the temp and humidity updated fairly quickly both in Hubitat and on the display.
ROBERTO BAUTISTA –
Works wih Hubitat
The SONOFF Zigbee Indoor Temperature Humidity Sensor (SNZB-02D) is an excellent, versatile device with reliable performance. Despite being marketed as an indoor sensor, I installed it outdoors, and it has held up well. It integrates seamlessly with Hubitat, making it an ideal choice for smart home enthusiasts.In my setup, I use it to monitor outdoor temperatures to automate switching between my heat pump and oil heating system. The sensor provides accurate and consistent readings, enabling efficient control of my heating system based on temperature thresholds. Overall, this sensor is a great value, offering flexibility and reliability for various use cases.
Forrest schumaker –
It works
Received my temp sensor last night. It works as intended.However, it was either preused or it sat on a shelf for a very, very long time. I removed the plastic tab that keeps the battery disconnected until purchase and the battery is almost dead. The screen randomly dims (its not backlit) so i assume a poor connection internally.
Count Orloff –
SmarttThings integration is very good
The most important thing to me was how easy it is to hook up to SmartThings. I got this because someone on forums had recommended it because it is a Zigbee protocol device. Most time Zigbee devices can just be scanned for within SmartThings and you don’t need to download any other special app. That was the case here although it was a bit of a puzzle on how to initiate pairing. It didn’t actually say how in the little user booklet that has absolutely tiny writing in it in many languages. I had to find the manual online. It’s such a simple thing why don’t they just put that in large letters right in the front of the manual. All you really need to know on this thing is that you pull off the film so that the battery inside engages, then press the tiny little button on the back for about 5 seconds until the little broadcast icon starts flashing on the display. Then initiate a scan in SmartThings and it should pair pretty quickly and start showing the temperature and humidity within SmartThings.The other use of the button which is also not in the manual is that if you click it once it will change from C to F. Again basic basic stuff and it’s not in the stupid little booklet they send, which really only tells you to go download their app which you don’t really need. So that’s why I’m deducting one star.I like the fact that this has a clear LCD display that’s always on. A lot of these little units are just blank white plastic boxes.Accuracy is okay. It reads maybe 1° higher than my trusty mercury thermometer. I think it’s more accurate than the little black thermometer unit shown in the photo.In SmartThings it responds perfectly and you can use it as a condition for actions. You can also see a nice graph of the temperature over hours and days. Nice.So what I really wanted to do with this was put it in my living room and have it turn on the air conditioning which is on a smart plug, during a certain portion of the afternoon, only if the temperature gets above for example 77F. My AC unit is perfectly safe to use turning it on and off with the main supply power. So: create a new SmartThings routine, as an IF precondition, set this sensor as equal to or greater than 77F. Then set the second IF main condition as a time range say 1pm to 6pm. THEN: turn on AC smart switch. If it never reaches 77F the AC won’t come on. If it doesn’t reach 77 until 3:30pm, it will only come on at that point. It works well, very very simple but effective.One could also set it to turn off in an evening time range as well if it reaches a certain temperature. But I have not needed to do that yet here in summer, since I always turn it off at sundown regardless and open the windows. This AC has a heat pump so I plan to use it in the winter too with a low limit temperature using the sensor.So this is maybe not as fancy as using something like a nest thermostat, but on the other hand it’s very versatile, simple, cheap, and I can just use Smartthings alone, but also still turn it on and off with a Google home command.
Captain Packrat –
Great for monitoring the basement temperature
My roommate is always worried about the temperature in the basement. He’s afraid that the pipes are going to freeze some day. I bought this sensor to appease him. I set up a routine in SmartThings that sends me an alert if the temperature drops below 37. It’s never even come close.I like that this sensor has a display, most don’t. It also measures humidity, which not all sensors do; this is particularly useful in a basement.
Sean Newton –
Quietly sits in the corner and does its job – exactly as a good home automation should
I love these things. I’ve got them in both of my houses, and use them to keep data on temperatures near my equipment. They integrate with the zigbee link on my homeassistant box, and just quietly do their job until they need a battery change.
matto –
Look nice, but don’t stay connected. Worthless
These worked great for about 1 week, then they started disconnect from my hub and it was a pain to get reconnected. After the 3rd time I have up and tossed them in the trash.I’m glad I tried two different brands because the other worked great and is still working with no hassle. So they look nice, but don’t work nice.
cj –
Excellent sensors
Very impressed with these sensors. Works with Hubitat, very accurate. Solid built !!
nonoxs –
Impeccable. Fait le taff, bonne taille et facile à intégrer.Je vais en commander plusieurs, c’est sûr.
Melky –
Descripción del producto para su venta dice: 2 paquetes y solo viene 1. Pero si es buen producto
Luis A. R. –
El sensor SONOFF SNZB-02D Zigbee con pantalla LCD ha sido una incorporación fantástica para mi hogar inteligente. Su instalación es rápida y sencilla, y se integra perfectamente con la app y otros dispositivos Zigbee, lo que permite un control completo desde el móvil o mediante asistentes de voz compatibles.Lo que más me ha sorprendido es la precisión de sus mediciones. La pantalla LCD permite visualizar de manera clara los datos en tiempo real, algo que resulta muy práctico para monitorear el entorno sin necesidad de abrir la app cada vez. La batería tiene una duración excelente, y el diseño compacto y discreto hace que se pueda colocar prácticamente en cualquier lugar sin que resulte molesto.Además, la respuesta del sensor es rápida y fiable, enviando alertas inmediatas si hay cambios en el ambiente que hayas configurado. Para quienes buscan automatizar su hogar de manera sencilla pero eficaz, este sensor es una opción perfecta. Calidad, funcionalidad y comodidad en un solo dispositivo.
David Bravo –
Como todo “termostato” tiene su grado centígrado de fallo.
Conmike12 –
Great little temp and humidity gauge. Accurate and worked perfectly for me with ZHA in HA. Paired within a couple of seconds and has been rock solid for me for 9 months now. Obviously, you can use it in automations, and I have it controlling a Sonoff TRV(excellent piece of kit) in the attic, turning it on when it gets below a certain temp, then turning it off when it gets too warm. Have no hesitation in buying it, top notch. Just be aware that it uses a CR2450 battery, which is not that easy to get. I live in Ireland, and the best price I got was from Viking Direct, 4.50 euros for 2 and 5 euros for delivery.