W&T 57114 Ethernet NTC thermometer with sensor, OPC UA, MQTT
- Machine data collection
- OPC UA / MQTT Sensors
- W&T 57114 Ethernet NTC thermometer with sensor, OPC UA, MQTT
W&T 57114 Ethernet NTC thermometer with sensor, OPC UA, MQTT
The W&T Web Thermometer NTC 57114 measures temperatures in the range from -45 to +75 °C. It includes an NTC sensor with a 1 m cable. The values are made available via Ethernet in a web interface as well as via the OPC UA, MQTT, REST and Modbus TCP protocols. More
Code: 57114
The W&T Web Thermometer NTC 57114 measures temperatures in the range from -45 to +75 °C. It includes an NTC sensor with a 1 m cable. The values are made available via Ethernet in a web interface as well as via the OPC UA, MQTT, REST and Modbus TCP protocols. More
Code: 57114
Network temperature measurement with an NTC sensor
Price on request
The W&T Web Thermometer NTC 57114 measures temperatures in the range from -45 to +75 °C. It includes an NTC sensor with a 1 m cable. The values are made available via Ethernet in a web interface as well as via the OPC UA, MQTT, REST and Modbus TCP protocols.
Do you need to select or order the W&T 57114?
Please send us the required quantity and a description of the wiring configuration. We will confirm the price and availability in our quotation.
Usage
Suitable for monitoring environments in server rooms, network cabinets and offices. The internal history records temperature trends, and configurable alerts notify you when temperature limits are exceeded.
Technical specifications for W&T 57114
| Temperature sensor | Type NTC DB9 socket Cable length: 1 m, cannot be extended |
|---|---|
| Network interface | 10/100BaseT, auto-detection / Auto-MDIX RJ45 IPv6 on request |
| Galvanic isolation | Network interface section: min. 1500 V |
| Supply voltage | Power-over-Ethernet (PoE) or 12–48 V DC (±10 %) |
| Power connection | Removable screw terminal block, pitch 5.08 mm Marked ‘L+’ and ‘M’ |
| Current consumption | PoE Class 1 (0.44–3.84 W) typ. 69 mA at 24 V DC max. 80 mA at 24 V DC |
| Signalling | 1 Power LED 2× network status LEDs 4 LEDs for status and faults |
| Sensor | NTC 10k |
| Measuring range | -45 °C to 75 °C |
| Resolution | 1/10 °C |
| Maximum measurement error (unit and sensor) | ±0.3 °C, ±5.1 % |
| Measurement period | 4 seconds |
| Save interval | 15 s, 30 s, 1 min, 5 min, 15 min, 60 min |
| History capacity (4 MB memory) | min. 16 weeks, max. 20 years |
| Housing and mounting | Compact plastic housing for DIN rail mounting 105 × 22 × 75 mm (length × width × height) |
| Degree of protection | IP20 |
| Weight | approx. 200 g |
| Ambient temperature | Storage: -40 to +70 °C Operating temperature with spacing between devices: 0 to +60 °C Operating temperature when installed side by side without spacing: 0 to +50 °C |
| Permissible relative humidity | 0 to 95 per cent RH, non-condensing |
| Operating ambient temperature | 0 to +60 °C |
| Contents of the delivery | 1x NTC web thermometer 1x NTC sensor, 1 m 1× quick start guide |
NTC sensor and temperature recording
- The supplied sensor connects via a DB9 connector. According to W&T, the 1 m cable is not intended for use as an extension lead. This model does not feature a Pt100/Pt1000 input.
- The measurement resolution is 0.1 °C and updates occur every 4 seconds. The recording interval is set separately.
- The 4 MB internal memory stores a history ranging from 16 weeks to 20 years, depending on the recording interval. This refers to the recording capacity, not a guarantee of service life.
- Up to 12 alarm messages can be configured. Data and alerts are also available via email, SNMP and other supported network services.
Commissioning and accessories
Place the probe in the measurement area and the module in conditions appropriate to its IP20 rating. Connect the network and a suitable power supply, then set the IP address, logging interval and alarm limits. Do not connect an extension cable to the NTC sensor.
Contents of the delivery
- 1x NTC web thermometer
- 1x NTC sensor, 1 m
- 1× quick start guide
Frequently Asked Questions
Can the sensor cable be extended?
No. For model 57114, the manufacturer specifies a 1 m cable, which cannot be extended. For other locations, a suitable measurement solution must be selected.
Can I connect a Pt100 or Pt1000?
No. This model uses a 10k NTC sensor. For Pt100/Pt1000, select a model with the appropriate measurement input.
Do I need a computer to store the history?
The device’s internal memory stores its own history. A computer or other client is used to display and process the data.
Why order from FOXON?
Before placing an order, we will check the current availability of the part and confirm the estimated delivery date. We will assist you in selecting the equipment and necessary accessories based on the wiring configuration and required communication. We will confirm the warranty terms and the scope of any diagnostics or repairs for the specific quotation.
Documentation and technical consultancy
Technical data and documentation W&T 57114
Manuals, firmware and tools for this model can also be found in the Downloads tab. For service enquiries, please use sale and repair of FOXON industrial parts.
Do you need to select or order the W&T 57114?
Please send us the required quantity and a description of the wiring configuration. We will confirm the price and availability in our quotation.
Diagrams and illustrations

Technical specifications for the W&T 57114
| Temperature sensor | Type NTC DB9 socket Cable length: 1 m, cannot be extended |
|---|---|
| Network interface | 10/100BaseT, auto-detection / Auto-MDIX RJ45 IPv6 on request |
| Galvanic isolation | Network interface section: min. 1500 V |
| Supply voltage | Power-over-Ethernet (PoE) or 12–48 V DC (±10 %) |
| Power connection | Removable screw terminal block, pitch 5.08 mm Marked ‘L+’ and ‘M’ |
| Current consumption | PoE Class 1 (0.44–3.84 W) typ. 69 mA at 24 V DC max. 80 mA at 24 V DC |
| Signalling | 1 Power LED 2× network status LEDs 4 LEDs for status and faults |
| Sensor | NTC 10k |
| Measuring range | -45 °C to 75 °C |
| Resolution | 1/10 °C |
| Maximum measurement error (unit and sensor) | ±0.3 °C, ±5.1 % |
| Measurement period | 4 seconds |
| Save interval | 15 s, 30 s, 1 min, 5 min, 15 min, 60 min |
| History capacity (4 MB memory) | min. 16 weeks, max. 20 years |
| Housing and mounting | Compact plastic housing for DIN rail mounting 105 × 22 × 75 mm (length × width × height) |
| Degree of protection | IP20 |
| Weight | approx. 200 g |
| Ambient temperature | Storage: -40 to +70 °C Operating temperature with spacing between devices: 0 to +60 °C Operating temperature when installed side by side without spacing: 0 to +50 °C |
| Permissible relative humidity | 0 to 95 per cent RH, non-condensing |
| Operating ambient temperature | 0 to +60 °C |
| Contents of the delivery | 1x NTC web thermometer 1x NTC sensor, 1 m 1× quick start guide |