![]() ![]() To begin, access the product user guide under resources to learn how to use MQTT and this sensor in conjunction. Note that t his sensor will need to be externally powered and is capable of using a 6-32VDC power supply. When it comes to temperature and humidity sensing, n othing compares to the ease of use, low price, high accuracy, operational temperature range, or security features we at NCD have to offer. Therefore, connectivity of the NCD ecosystem of IoT wireless sensors remains a top priority for the NCD engineering team. As one of the world’s most popular IoT protocols, MQTT is an essential, easy to use tool for viewing data from a wireless sensor device. This WiFi Temperature Humidity Sensor for MQTT was developed to work with any MQTT Broker. The on-board temperature humidity Honeywell® sensor is rated for -40☌ to 85☌ or -40☏ to 185☏ making it a viable product for most applications. The temperature and humidity data collected from the environment around the sensor will be transmitted in beacons of high-accuracy (±4%RH and ☐.5☌). NCD set out to build the world’s best WiFi Temperature Humidity Sensor for MQTT. In doing so, NCD now incorporates a precision Honeywell® temperature and humidity sensor with a WiFi module and control board. I recommend connecting the output to a 5816. When a threshold is reached this device will throw a relay output. This product will offer live local reading but not remotely. Lastly if you want to setup custom thresholds you may want to check out the EA200. This is not the intended use for these products. If you want to tie it into Total Connect 2.0 it will need to be a Honeywell ZWSTAT (Z-Wave) or a TC comfort WIFI thermostat. The ControlByWeb Cloud is only compatible with our Wi-Fi modules and our 400 series (X-400, X-408, X-410, etc.) devices. Monitor and graph temperature data over time on the ControlByWeb device. There are some fairly affordable WIFI thermostats out there. Connect a digital temperature sensor via 1-Wire Bus to monitor boiler supply and return line temperature. If you want to setup a WIFI thermostat and just keep it in the off state you could certainly try that. ![]() That can only be accomplished with a thermostat. The 5821 with FP280 will cover low temp alarms and flood and I highly recommend this for starters. I wish there was! However there are some options. ![]() The device connects through WiFi, so there are no subscription fees. The Temp Stick will monitor conditions 24/7 and alert you by text or email when the temperature or humidity reaches a dangerous level. There is not really a perfect all in one device that does all that. Temp Stick WiFi Remote Temperature and Humidity Sensor. The following table shows the fault and restore thresholds for the 5821 in its various uses: Operating Modeīrand: Honeywell Honeywell 5821 Compatible Products As a standalone temperature sensor, the 5821 can monitor cold, warm, or hot temperatures. Honeywell Ademco 5816WMWH White Door/Window Transmitter w/Magnet. Without any probe, the internal temperature sensor of the wireless Honeywell 5821 can be used to monitor the protected room's ambient temperature. Use a maximum wire length of 48 inches (1.2m) between the 5821 and any flood probe. ✝✝ Probe must be shunted by 2.2M Ohm resistor (included with 5821). ✝When an external probe is used, an open-circuit or a short-circuit of the probe's wiring (or at the terminals) results in an alarm on that loop, and a trouble condition on all other programmed loops. The following table shows the various operating modes available on the 5821: Sensing The 5821's dip switch settings along with the programmed loop number of the wireless zone will determine which type of protection the 5821 wireless transmitter is providing. Honeywell created the FP280 to make it easier for end users and DIYers to set up flood detection. All the installer has to do is connect it to the probe terminals on the 5821. On the other hand, the FP280 comes with a 16.5-foot cable that already has the 2.2M Ohm resistor wired in parallel. The 470PB does not come with the wire needed to connect it to the 5821. The 5821 ships with a 2.2M Ohm resistor which must be wired in parallel with the 470PB flood probe when that probe is used. The 470PB or FP280, each sold separately, can be hardwired to the 5821 and configured for flood detection. There are no probes included with the unit. Only one external probe, temperature or flood, can be used with each 5821. It can also be used in combination with the T280R temperature sensor probe or with a 470PB or FP280 water/flood probe. The 5821 wireless sensor can either be used as a standalone temperature sensor. The Honeywell 5821 is a wireless transmitter with the ability to monitor temperature and/or flood conditions. ![]()
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