# Product Introduction
HART® Field Temperature Transmitter with one universal sensor input, designed for use in hazardous areas and supporting Bluetooth® wireless communication.
## Advantages:
- Certified with multiple international approvals for hazardous area applications: CSA (IS, NI, XP and DIP), ATEX, INMETRO, NEPSI (Ex ia, Ex d, dust explosion protection).
- Equipped with a pressure-sealed single-chamber field housing and built-in overvoltage protection, enabling reliable, long-term, stable and accurate temperature measurement even under harsh working conditions.
- Bluetooth interface: The Endress+Hauser SmartBlue app reduces time and effort for instrument commissioning, configuration and maintenance.
- Advanced diagnostic functions and condensed status notifications support predictive maintenance and comply with NAMUR NE107 standards.
- Newly developed large-digit backlit display clearly shows process information under all environmental conditions.
# Product Parameters
## Product Specifications
### Input
1 x RTD, TC, Ohm, mV
### Output
1 x analog 4...20 mA / HART
### Auxiliary Power Supply
11…36 V DC (standard version)
11...30 V DC (Ex ia)
### Communication
HART-protocol, Bluetooth® wireless technology
### Mounting
Field-mounted
### Measurement Accuracy
(Pt100, -50...200 °C) ≤0.1 K
(Pt100, -58...392 °F) ≤0.18 °F
### Electrical Isolation
Yes
# Product Application
## Application Fields
The single-channel iTEMP TMT142B temperature transmitter with backlit display delivers reliable, precise and long-term stable measurement results in harsh working environments and hazardous areas. Built with a Bluetooth interface, it enables secure remote operation via the Endress+Hauser SmartBlue app and features a rugged single-chamber field housing. It connects RTD, TC, resistance (Ohm) or voltage (mV) signals, converts them into 4...20 mA signals, and supports HART 7 communication.
Tech Support
User Reviews