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H1AT Temperature Sensor Datasheet

H1AT is a industrial-grade, fully calibrated digital temperature transducer; primarily designed to measure temperature in distribution pipes of gases and/or liquids. The solution offers a wide range of electrical connectivity options including RS485 and USB. The unit communicates using multiple protocol options. The unit offers multiple choices of physical connectors and can be used in a variety of environments.


Temperature sensor H1AT is designed for precision measurement of temperatures of gases and/or liquids inside distribution piping or open air. The main measurement body is made from stainless steel, so any measured medium which does not react with stainless steel (DIN 1.4301) can be measured.

The sensor uses very sensitive probe to measure temperature in the tip of the probe. The sensor is fully calibrated and linearized.

Sensors are designed, assembled and tested in EU under full EU legislation.

Mechanical information

The transducer is enclosed in a robust stainless steel enclosure. Rest of the body is made from UV-stabilized ABS-based plastics.

Technical parameters

Type of measurementtemperature
Maximum measurement range-40 to 120C
Max pressure of measured medium2 MPa
Measurement precision0.1% of measured range
this combined precision accounts for non-linearity of measurement, hysteresis and repeatability
Long-term driftless than 0,03 deg. Celsius per year
Recommended calibration frequencyonce every three years
Operating temperature-40 to 85C
Power supply5V - 30V DC
Communication protocolMODBUS RTU or SDI-12 or HTTP/JSON or MODBUS TCP/IP
Mounting optionssee order table below
Thread materialDIN 1.4301 (AISI 304 / X5CrNi18 10) stainless steel
Isolation resistance at 500VRIZ > 2 M Ohm
IP protection grade according to (IEC 60 529) EN 60 529IP 66

Temperature measurement


Ethernet version of temperature sensor H1AT-ETH supports up to 1Hz measurement cadency. All other versions support up to 20Hz measurement cadency.


Dimensions in [mm]

H1AT dimensions with A0 type connector (see below)


Testing applications and SDK and integration tools are promptly available on request via

Label description

Information included on the label:

  • Manufacturer
  • Full order code
  • Measurement range and precision
  • Serial number
  • IP rating


Order shall contain the following information:

  • Date and reference order number
  • Name and address of customer (including VAT number where appropriate)
  • Order code assembled from order tables including number of units and requested delivery date
  • Type of shipping
  • Optional extras to include (for example calibration certificates)

Order code table


Only version with A0 connector type can be connected to wireless uplink radio unit type H1AX!

Measurement range (M)
M0-30C to +110C
MXspecial - on request
Measurement precision (% of measurement range) (P)
PXspecial - on request
Communication transceiver (R)
R1RS-485 (TIA-485(-A) / EIA-485)
R2USB 1.x (Win, Linux, MacOS drivers)
R3Ethernet (10Base-T) + PoE (802.3af)
RXspecial - on request
Connector type (A)
A0Weipu SP2112/P7 (IP68)
A1Valve connector DIN 43650-A (IP65)
A2USB Type-B (IP50)
A3Hirschmann CA3GS (IP67)
A4RJ45 (IP50)
AXspecial - on request
Communication protocol (C)
CXspecial - on request
Mounting thread (T)
T3NPT 1/2
TXspecial - on request
Probe length including mounthing thread (L)
LXspecial - on request
Probe diameter (D)
DXspecial - on request
Order code example: H1AT-M0-P0-R1-A0-C0-T2-L2-DX=10mm
Measurement range (M0): -30C to 110C
Measurement precision (% of measurement range) (P0): 0.4%
Communication port (R1): RS-485
Physical connector (A0): Weipu SP2112/P7 (IP68)
Communication protocol (C0): MODBUS RTU
Mounting thread (T2): G1/4
Probe length including mounthing thread (L2): 250mm
DX - special request - probe diameter = 10mm


Sensors are packed individually into padded cartons.

The packaging includes all information required for proper use and servicing of the equipment.


Physical installation of the sensor

The sensor is screwed onto the measurement place with appropriate spanner (24mm). The threads on the measurement place and sensor must match! Tightness of the connection is ensured by appropriate gasket – not a part of the standard delivery.

The following tables show functionalities of the pins on the sensor side of the connection for different combinations of physical connectors and transciever types.

SENTRY S1A type "A5" for TTL (R0)

Spring pin on sensor Sensor function Notes
7 UART RX 3v3 domain
12 UART TX 3v3 domain
18 3V3 DC to power sensor Supply 3V3 DC to this pin
19 GND Supply GND to this pin

Other pins must stay unconnected.

Weipu SP2112/P7 type "A0" for TTL (R0)

Pin Function Notes
1 not connected leave unconnected
2 GND Supply GND to this pin
3 UART TX 3v3 domain
4 shorted to pin 6 leave unconnected
5 VCC Supply 3v3 DC to this pin
6 shorted to pin 4 leave unconnected
7 UART RX 3v3 domain

Valve connector DIN type "A1"

RS485 (R1)
Pin | Function | Notes
1 = VCC - Supply 3v3 DC to this pin
2 = GND - Supply GND to this pin
3 = RS485 A
4 = RS485 B
TTL (R0)
Pin | Function | Notes
1 = VCC - Supply 3v3 DC to this pin
2 = GND - Supply GND to this pin

Hirschmann CA3GS type "A3"

RS485 (R1)
Pin | Function
1 = VCC - supply 3v3 DC to this pin
2 = RS485 - A
3 = RS485 - B
4 = GND - supply GND to this pin
TTL (R0)
Pin | Function
1 = VCC - supply 3v3 DC to this pin
4 = GND - supply GND to this pin

Default connectivity configuration

Default TTL/UART configuration: 38400 baud, 8N1 ( => 1 start bit, 8 data bits, 1 stop bit, no parity)

Default communication protocol: MODBUS - implementation information: Moire Labs MODBUS version 1


Device type: H1AT

Name and address of the manufacturer: Moire Labs s.r.o., Kulturna 32, 821 04 Bratislava, Slovakia

This declaration of conformity is issued under the sole responsibility of the manufacturer.

Object of declaration: Temperature transducer H1AT

The object of the declaration described herein is in conformity with the following Union harmonisation legislation:

  • Directive EMC 2014/30/EU

The following norms are applied:

  • EN 61000-6-1:2007
  • EN 61000-6-2:2005
  • EN 61000-6-3:2011
  • EN 61326-1:2013
  • EN 61326-2-3:2013

On behalf of Moire Labs in Bratislava, SK on 9th of May 2022: Marcel Hecko, CTO Moire Labs s.r.o.

Contacts and support

Design and manufacture

Moire Labs s.r.o.
Kulturna 32 
821 04 Bratislava
European Union

For support please contact your distributor or manufacturer directly via