Products & Services:



•  High precision dual (or single) point temperature measurement and logging in connection with a PC.

•  Miniature sensor elements for fast response and ease of attachment to different sensors.

•  Sensing elements are remotely attached to the instrument for their easy positioning on the area of interest.

•  Water tight and robust for reliable operation in chemical or biological laboratories.

•  Visual aid on the instrument for indication of acquisition activity.

•  Low power consumption instrument..

•  User-friendly software including long duration logging capabilities.

•  Extended temperature range sensors available.

•  Devices individually calibrated.

•  Product is fully designed and manufactured in the U.S.A.


The AP-T312 is an easy-to use, robust and high precision two channel digital temperature transmitter. The AP-T311 is functionally similar to AP-T312 with the exception of having only a single sensing element.

The AP-T300 series uses the RS232 port for connection to a personal computer (PC).

They can also be connected to the USB port via a USB-RS232 adapter. (The adapter is not provided and should be purchased separately).

The sensing elements of AP-T300 family are connected with
1 ft. (30 Cm) of flexible cable.

The AP-T312 having two independent sensing elements permits differential temperature measurement between two user defined points. This feature is useful in measuring temperature gradient in an area or in a gas flow stream.

The combination of AP-T300 family with associated Windows ® based software provides you a powerful temperature logger.


The software allows you to select the sampling rate from a predefined range. In addition, it has the feature of automatic reduction in sampling rate when the input temperature change is less than a user defined value.

The software automatically saves the data in ASCII text format compatible to Excel ® for future analysis.

The AP-T311 and AP-T312 can provide a measurement resolution better than 0.04 F (0.02 C).

Each unit is individually calibrated and delivered with 2-point calibration data.

AP-T300 family is robust and water proof.




•  Measurement ranges: In order to obtain the highest resolution for measurements, different standard ranges are available. The total range has a resolution (smallest measurable quantity) of about 1000 point. The ranges and associated resolutions are as follows:

•  +20 to +50 °C ( +50 to +130 °F) for biomedical and life-science applications.

•  -5 to +105 C (25 to 220 °F) for general engineering and environmental applications.

•  Extended measurement ranges from -50 C to +150 °C can be provided at extra costs.

  • Precision: Depends on the selected range of measurement. It varies between 0.2 °C (0.3 °F) to larger values.
  • Operation temperature range for electronics of AP-T300 family: 0 to 70 °C (30 to 160 °F).
  • Minimum System requirements: 8MB of RAM, 2 MB of disk space. 800 X 600 resolution. 1 free RS232 or USB port.
  • Software compatibility: Windows XP/VISTA
  • Power source: RS232 or USB port. No need for battery or external supply.
  • Dimensions of the sensor(s) elements: 2.5 X 2.5 mm (0.1 " X 0.1")
  • Dimensions of AP-T3xx device: W=1" (25.4mm), H= 9/16" (14.3 mm), L=4" (100.4 mm)


  • Life science and engineering research laboratories requiring high quality and yet simple and low cost measurement equipment.
  • Environmental monitoring requiring robust and simple instruments.
  • Differential (two point) temperature measurement applicable in thermal gradient determination.
  • Long duration data logging with storage in Excel ® compatible files.
  • Possibility of post processing and analysis in Excel ® worksheet.



  • Warranty: These products have a 15 month limited warranty. (Shipping costs are excluded).
  • Extended warranty is available.
  • Contact information:

Previously Developed Products:

1- Sensor area

•  Miniature capacitive pressure sensor

•   Water conductivity Sensor

Miniature sensor for inline insertion

3/8" pipe

Integrated high precision temperature sensor

Measurement from 1 uS to 500 uS (for D.I. to drinkable water)


2- Measurement equipment

2.0- Resistive and capacitive humidity sensor (MEMS and hybrid technologies)

2.1- High precision temperature measurement

2.2- Portable, high precision complex impedance meter

2.3- Capacitive sensor signal conditioning

2.4- Two-wire digital sensor interfacing

2.5- Gas flow meter for medical and industrial applications

2.6- RFID reader

2.7- Inductive power coupling

2.8- Ultrasound for dog repel (picture)

2.9-Differential pressure measurement (Picture)

AZ501: Impedance measurement instrument

Interface with computer via RS232 or USB.

Optional telemetry transmission

Very low power consumption for solar power compatibility

Microprocessor based advanced technology, high integration

High precision range

Small size