Wireless Immersion Temperature Transmitter, 418 MHz

Part Number: BA/WT-I

List Price Starting At: $335.00
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Wireless Immersion Temperature Transmitter

BAPI Wireless Immersion Transmitters are available in 2”, 4” and 8” probe lengths. The sensor is potted inside a 1/4” stainless steel probe with a thermally conductive compound. They come with etched teflon leadwires, double encapsulated sensors and a watertight BAPI-Box enclosure.

The unit transmits the temperature through 418MHz RF to a receiver up to 100 feet away. It has an estimated battery life of 8 years and a transmit rate of about once every 20 seconds. Analog Output Modules connected to the receiver convert the temperature data to a voltage, current or resistive signal for the controller.

  • Probe Lengths: 2″, 4” and 8” (fit standard BAPI Thermowells)
  • 8 Year Battery Life
  • 100 Foot In Building Range, Extendable to 1,000 Feet with Repeater
  • Signal Is Converted to a Voltage, Current or Resistance for the BAS

Datasheet for Submittal

Instruction Sheet

Special Document

  • Using Thermal Grease in Thermowells – Application Note

    Overview In some applications with non-BAPI products, there are thermal transfer concerns due to a large gap between the interior wall of the thermowell and the outside of the immersion temperature sensor probe that is inserted …

  • BAPI Non-Room Enclosure Styles – Application Note

    BAPI offers six enclosure styles for our non-room sensors. These enclosure include the Junction Box, the Weatherproof Enclosure (or “Bell Box”), the Weather Tight Enclosure, and the BAPI-Box, BAPI-Box 2 and BAPI-Box 4.   Junction Box The Junction …

  • IEC Enclosure Ratings Overview – Application Note

    The IEC (International Electrotechnical Commision) is an international committee that developes and publishes its recommendations for standardising international wiring devices and products. Ingress Protection (IP) is the grades of protection against external solids contacting the …

  • NEMA Enclosure Ratings – Application Note

    The National Electrical Manufacturers Association (NEMA) Standards Publication No. 250 defines 13 different enclosure “types” for non-hazardous locations.  These NEMA types define the applications and the environmental conditions that enclosures are designed to protect against …

  • UL94 Flammability Rating – Application Note

    All of BAPI’s indoor sensor bodies and transmitter enclosures are made from UL94, V-0 rated plastics. UL94 serves as a preliminary indication of a plastic’s acceptability for use as part of a device or appliance with …

  • Using Thermowells in Small Pipes – Application Note

    Many times you need to measure the temperature of the contents of a small pipe. Figure 1 shows how a pipe tee can be used in an elbow application.  A 2-inch tee and a ½ inch …

  • Thermowell and Immersion Probe Installation Overview – Application Note

    Thermowells are hidden in pipes and are rarely seen.  How dimensions are established for the wells and the immersion probes that fit into them are not readily apparent.  This application note exposes how the dimensions …


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