NIST-Traceable Temperature Monitor with Alarm Condition Notification

T° Sentry Model 140 Product Information


T-Sentry 140 Temperature Monitor Alarm
Click image to enlarge.

Key Features:

  • Continuously monitored, NIST-traceable, calibrated, temperature probe.
  • -200 °C to +400 °C with variable ranges and probe types.
  • Easy-to-read LCD display, 1 degree or 0.1 degree, °C or °F.
  • Adjustable high/low alert condition settings and alarm delay period.
  • Audible and visual alarms.
  • Selectable audible alarm mute periods.
  • Optional SPDT relay contact output with adjustable relay delay period.
  • Available temperature outputs: 4 to 20 mA, voltage, RS-232, RS-485, TCP/IP (Ethernet), etc.
  • NiMH battery backup.
  • Passcode protected setpoints.

Product Overview:

The T° Sentry Model 140 is a standalone, continuously monitoring, single-probe, NIST-traceable temperature verification system with built-in alert status notification. In addition to the easy-to-read LCD display, temperature readings can be output in a variety of formats including current (4 to 20 mA), voltage, RS-232, RS-485, and TCP/IP (Ethernet). The standard Model 140 (-100 °C to +100 °C) is widely used in laboratory grade refrigerators, freezers, and walk-in coolers. However, using other available probe types, the Model 140 can be used for high-temperature monitoring applications like ovens, batch ovens, industrial heating chambers, and other thermal processing manufacturing equipment. The T° Sentry Model 140 can be used wherever material storage temperatures must be maintained within a specified range.

The Model 140 includes user-adjustable high/low temperature alert condition thresholds, audible (beeper) and visual (LED) alarms, programmable alert condition mute and “chirp” periods, and a UL-listed, plug-in power supply. NiMH rechargeable battery-backup is also available.

Additional features include audible alert condition muting (with user-selectable mute periods up to 32 minutes), optional relay contacts to provide temperature and power failure condition alerts, whole-degree or 0.1-degree display, °C or °F models, and optional passcode protection for setpoints. NIST-traceable probe temperature certifications are available upon request.

NOTE 1: The T° Sentry 140 can be optionally integrated into our PC-based networked T° Sentry ALERT Monitoring System software option for data logging, statistical process control (SPC) and alert condition email/SMS text notification.

NOTE 2: If you’re looking for multi-sensor monitoring (temperature, humidity, etc.) and network data logging, then please check out our main products page to see all of our multi-sensor monitors compatible with our T Sentry ALERT Monitoring System software option.

Video Above: Setting up the Model 140

Additional Features:

  • Temperature Ranges & Accuracies:
    Model 140-100: 
    -100 to +100 °C (-148 to +212 °F), +/-0.2 °C (±0.4 °F), 100-Ohm RTD, 4" stainless steel sheath, 10' Teflon® coated waterproof lead
    Model 140-200: (see Cryogenic Dewar Freezer Temperature Monitor/Alarm):
    -200 to +50 °C (-328 to +122 °F), +/-2 °C (4 °F), Type T thermocouple, 3" stainless steel sheath, 10' lead
    Model 140-400:
    0 to +400 °C (°F not available), +/-2 °C, Type K thermocouple, 3" stainless steel sheath, 10' lead.
  • Power Supply: 120-240 VAC universal switching.
  • Black Bakelite Case: 5" wide x 4.25" high x 1.75" deep.
  • Mounting: Wall mount with VELCRO® or stand on bottom edge.

Available Options:

  • R - SPDT Relay Dry Contacts: Normally open (NO) or normally closed (NC), user-adjustable delay period.
  • B – 9V Rechargeable Battery Backup: 8.4 V NiMH, 160 mAh, 2 mA built-in trickle charger.
  • H – High Resolution: 0.1° display resolution.
  • I – Current Output (4 to 20 mA): Receiver-powered (RP) or self-powered (SP).
  • F – Fahrenheit °F Display.
  • SW – Door Switch Input: Door closes: alarm active, door open: alarm inactive.
  • PC – Passcode Protected Setpoints.
  • V – Voltage:10 mV per 1° or 0.0 to 1.0 V.
  • D - Digital Output: RS-232 or RS-485.
  • E – Ethernet: 10/100 Base-T TCP/IP output to Tº Sentry ALERT Monitoring System data logging software.
  • Other Available Sensors: CryoRTD, 1000-Ohm RTD, Type J thermocouple, etc.
  • Extra Loud Audio Alarm: 100 dB vs standard 90 dB at 10 cm.
  • Large Display Panel for cabinet mounting.

Related Products:

  • AD 2000 Auto Dialer (Model AD 2000): Dials a phone/pager upon alarm condition.
  • Remote Alarm Delay Module (Model ADM 215).
  • Product Simulator Probe Bottle (A02000): 4-ounce freezer/refrigerator thermal mass simulator.
  • Interlocking Wall Mounting Bracket (PN 68034).

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