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P1QT Temperature Sensor Datasheet

Digital temperature transducer P1QT is a telemetry-enabled, battery powered temperature sensor, which is primarily used to measure temperature in distribution pipes of gases or liquids and sending the measured data over the wireless network into centralized measurement systems such as SCADA.

Wireless communication of the transducer is provided utilizing one of the LoRaWAN, Sigfox, Bluetooth, ZigBee, 805.15.4 or Wi-Fi (2.4GHz, 802.11b/g/n, WPA2)radio technology using various RF frequency spectrums.


Temperature sensor P1QT is designed for precision measurement and wireless transmit of temperature of gases or liquids inside distribution piping. The main measurement body is made from stainless steel, so any medium can be measured which does not react with stainless steel type DIN 1.4301, also known as AISI 304 also known as X5CrNi18 10.

The sensor uses very sensitive platinum elements to measure temperature in the tip of the probe. This measured information is afterwards transmitted over wireless network to the final system for monitoring, metering or controlling purposes.

ATEX information

The device is available in ATEX version as following:

  • ATEX zone 2: LoRaWAN and Bluetooth versions available
  • ATEX zone 1: Bluetooth version available
  • ATEX zone 0: Bluetooth version available

Certification is done according to the European Union legislation.

Mechanical information

The transducer is enclosed in a robust stainless steel enclosure. The back cover is made from UV-stabilized ABS-based plastics.

Technical parameters

Type of measurementtemperature
Maximum measurement range-50 to 400C
Max pressure of measured medium2 MPa
Measurement precision0.25% from measured range
this combined precision accounts for non-linearity of measurement, hysteresis and repeatability
Long-term precision stabilityadditional error of less than 0,05% of range per year
Recommended calibration frequencyonce every three years
Power supplyuser replaceable battery - order code P1QB
Wireless uplink technology optionsBluetooth, LoRaWAN, Sigfox, ZigBee, 802.15.4, Bluetooth LE, Wi-Fi (2.4GHz, 802.11b/g/n, WPA2) - see ordering table below
Antenna connectorSMA external threading
Process attachmentM20x1,5; G½; G¼; other - see ordering table below
Material of process attachmentDIN 1.4301 (AISI 304 / X5CrNi18 10) stainless steel
Material of the dial bodyAnodized aluminium or stainless steel
Isolation resistance at 500VRIZ > 2 M Ohm
IP protection grade according to (IEC 60 529) EN 60 529IP 65

Weight and dimensions

Weight ex. battery:

Dimensions in [mm]


LoRaWAN packet format - see following link: p1q-lorawan_packet_format

Example parsers are promptly available on request via

Label description

Information included on the label:

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


Order shall contain the following information:

  • Date and internal number of the order
  • Name and address (including VAT number where appropriate)
  • Order code assembled from order tables including number of units and requested delivery date
  • Type of delivery
  • Optional extras to include (for example high pressure shock damping filter)

Order codes table

Measurement range (M)
M0-30C to +70C
M10C to +100C
M20C to +200C
M30C to +300C
M40C to +400C
M5-50C to +50C
M6-30C to +110C
MXspecial - on request
Uplink radio type (R)
R0NB-IoT - band 20
R1LoRaWAN - Class A - EU 868 MHz
R2LoRaWAN - Class A - US 915 MHz
R3Bluetooth - 2.4GHz
R4XBee - 2.4GHz
R5802.15.4 - 2.4GHz
R7none - no radio - display only
R8Wi-Fi - 2.4GHz, 802.11b/g/n
R9RS-485 (TIA-485(-A) / EIA-485)
RXspecial - on request
Main body material (B)
B0Stainless steel
BXspecial - on request
Power supply type (C)
C0D-size LiSOCl2 3.6V non-rechargeable battery
C1P1QB-B0-F0 battery module connector
C226650-size 3.3 - 3.6V rechargeable battery
CXspecial - on request
Measurement precision (% of measurement range) (P)
PXspecial - on request
Working temperature (W)
W0-20 to +60C
W10 to +60C
WXspecial - on request
Mounting thread (T)
T3NPT 1/2
TXspecial - on request
Probe length including mounting thread (L)
LXspecial - on request
Probe diameter (D)
DXspecial - on request
Order code example: P1QT-M3-R1-B0-P2-W1-T2-L0-DX=10mm<br>
Measurement range (M3): 0C to 300C
Uplink radio type (R1): LoRaWAN - Class A - 868MHz
Main body material (B0): Stainless steel
Measurement precision (% of measurement range) (P2): 0.5%
Working temperature (W1): 0 to +60C
Mounting thread (T2): G1/4
Probe length including mounthing thread (L0): 100mm
DX - special request - probe diameter = 10mm


Sensors are appropriately packed individually into padded cartons.

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


The sensor is screwed onto the measurement place with appropriate spanner (24mm). The inner thread on the measurement place and sensor must match! Tightness of the connection is ensured by appropriate gasket – not part of the delivery. The dial body of the sensor must not be used for tightening of the unit to the measured place.


For support please contact your distributor or manufacturer directly via