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Remote Refrigerator/Freezer Temperature Monitoring with
Ethernet Logger/Alarm Notification Integration.

Single Probe, T Sentry Model 140: Product Description


  • Easy to read LCD display.
  • Audio & visual alarms.
  • Adjustable displayable alarm settings and initial alarm delay period.
  • Selectable alarm mute period.
  • Standard operating range (-100°C to +100°C).
  • Wireless and wired integration into Model AMS remote Ethernet data logger and alarm notification system.
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Product Overview:

NOTE 1: For multi-probe temperature applications, visit our MPS Series page.

NOTE 2: For multi-probe temperature/humidity applications, visit our MPS HT page.

CASE STUDY: Case study from the medical lab at the University of Colorado.

The T Sentry Model 140 is a stand-alone single-probe continuous temperature monitoring/alarm notification system widely used within refrigerators, freezers and walk-in coolers - wherever material storage temperatures must be maintained within a narrow range. By selecting a different probe type/temperature range the system can be used for high temperature monitoring applications as well (e.g., within ovens, heating chambers and other manufacturing processes and machinery).

The T Sentry Model 140 includes user-settable high/low temperature thresholds, audible/visual alarms (via beeper and LEDs), programmable alarm mute and "chirp" periods and a UL-listed plug-in power supply. Additional features include alarm muting (for user-selectable periods up to 32 minutes), optional relay contacts (for indicating temperature and/or power failure conditions) and an optional alarm auto dialing system. The system is intuitive and easily programmed for any application (see video below).

Video - Setting Up the Model T Sentry 140

NOTE:The T Sentry 140 can be used in a "stand-alone" mode AND/OR be integrated into our AMS, PC-based Ethernet network data logger/alarm notification system (using wired and/or wireless connections). This allows you to choose (at any time) between basic monitoring and alarm notification versus full remote network data logging and analysis (to meet Federal and State safety compliance guidelines and carry out statistical process control).

Also, since data portability and security are important for most users, we do NOT lock you into a cloud storage solution as an up-sell. There are many SaaS solutions available and we prefer to allow you to make this important decision based on your needs.

Additional Features/Options:

Power: 9-30 volts DC (25 ma maximum). 120VAC, UL listed main power supply comes standard (220 volt optional).
Mechanical: Case is black Bakelite, 5" wide x 4.25" height x 1.75" deep, wall mount with Velcro, or set on bottom edge. All wires exit through side.
Charger: 2 ma trickle charger; built-in.
Standard sensor: 100 ohm RTD in 4.0-inch or 2.0-inch stainless steel sheath with a 10-foot lead wire.
Temperature range: -100 to +100°C ("standard" Model T 140-100). Other degree °F ranges available (see option "F").
Resolution: 1°C standard, 0.1°C (option "H").
Accuracy: +/-1°C standard, +/- 0.2°C (option "H").
Battery back-up: 7-cell NiMH, 8.4 volt 150 ma/hr. Use of 9-volt battery (option "B").
Sensor options:
- Model 140-400 - 'K' thermocouple, 0°C to 400°C, +/-1°C.
- Model 140-200R - 'T' thermocouple, -200°C to +50°C.
- 1000 ohm RTD, voltage or current input (other range options available).
- SPDT relay contacts with delay period (option "R").
- 10mV per degree, (option "V").
- 4 to 20 mA output, (option "I").
- Digital output, (option "D").

Additional options:

  • NiMH backup battery.
  • 0.1°C display.
  • SPDT alarm contact output with adjustable relay delay period.
  • 4-20 mA output.
  • RS-485 output.
  • °F display.
  • Password-protected set points.
  • Switch input.
  • Wi-Fi operation.
  • Model T Sentry 140 Documentation:

    T Sentry Model 140 - Pricing

    T Sentry Model 140 - Brochure

    T Sentry Model 140 - Manual

    Warrany, Shipping and Return Info


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