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  • HACCP temperature data logger Testo 191-T4 with two long flexible probes for food production validation
  • HACCP temperature data logger Testo 191-T4 with two long flexible probes for food production validation
  • HACCP temperature data logger Testo 191-T4 with two long flexible probes for food production validation
  • HACCP temperature data logger Testo 191-T4 with two long flexible probes for food production validation
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HACCP temperature data logger Testo 191-T4 with two long flexible probes for food production validation

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Item: 0572 1914
€3 406/exl. VAT
€3 585/exl. VAT
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Description

Datasheet | Instruction Manual

Testo 191-T4 Professional HACCP Temperature Data Logger with Two Flexible Probes

The Testo 191-T4 HACCP temperature data logger is an elite dual-channel measurement asset certified by HACCP International, engineered for the qualification, validation, and process monitoring of food production lines. Equipped with two long, flexible probes (length 775 mm, Ø 1.5 mm) connected to high-precision Pt1000 sensor elements, this data logger is optimized for tracking internal corner conditions and determining the exact heat penetration levels. Built with high-grade stainless steel and a heat-resistant PEEK polymer housing, this slim device ensures absolute food safety and maximum structural reliability during pasteurization, sterilization, and freeze-drying processes under high pressure.

Industrial & Food Processing Applications

  • Food Pasteurization & Sterilization: Comprehensive simultaneous two-point validation tracking inside active autoclaves, processing cookers, and closed lines using the long flexible lines.
  • Freeze-Drying (Lyophilization) Controls: High-precision surface temperature mapping across system shelf plates when combined with specialized freeze dryer probe holders.
  • Canned & Liquid Stock Diagnostics: Parallel multi-depth heat tracking inside high-density fluid vats, batch cooking vessels, and commercial vacuum packages.

Technical Characteristics

Sensor Type ProfileDual-channel high-stability Pt1000 resistance matrix
Thermal Log RangeExtends across food process environments from -50 °C up to +140 °C
System Reading Accuracy±0.1 °C within the critical target interval from -40 °C to +140 °C; ±0.2 °C remaining range
Measurement Resolution ScalingHigh-resolution 0.01 °C steps for tracking critical heat penetration trends
Probe Geometric ConfigurationTwo independent flexible 775 mm probes (Ø 1.5 mm) ending with 25 mm rigid tips (Ø 3 mm)
Dynamic Response SpeedExceptional processing thermal transfer rate of t90 = 6 s
Internal Buffer CapacitySecure standalone volatile memory microchip storing up to 30,000 readings per channel
Housing Rating and ShellHermetically sealed stainless steel and PEEK plastic design; certified IP68 water/pressure tightness
Power & Field RuntimeRemovable 1/2 AA lithium battery pack providing 750 operating hours (at 10 s rate at +121 °C)
Multi-Instrument LogisticsSimultaneous data loading and configurations for up to 8 loggers via the multi-function case unit

Package Contents

  • Testo 191-T4 dual-channel professional HACCP temperature logger
  • Two integrated 775 mm long flexible technical Pt1000 probe components
  • Official factory calibration record validation protocol and setup manual