Sato SK-L400T 4-Channel Temperature Data Logger

The Sato SK-L400T measures and records temperature from up to four Type K thermocouple probes, with all four readings shown on a large backlit display.

  • Four temperature channels for comparing multiple measurement points.
  • SD-card recording with intervals from 1 second to 90 minutes.
  • Independent high and low alarms for each channel.
  • MAX/MIN, relative readings and T1–T2 temperature difference.
  • Battery operation with an optional AC adapter.
  • Probes sold separately; measuring range depends on the selected probe.

Sato SK-L400T 4-Channel Temperature Data Logger

The Sato SK-L400T records temperature from up to four Type K thermocouple probes and displays all four channels together. It provides a practical way to compare temperatures at different points during equipment checks, heating and cooling trials, and process investigations.

Select probes for the actual measurement task, whether air, liquids, semi-solid materials or stationary surfaces. The logger and probe must be considered together when choosing the measuring range and accuracy.

Key Features

  • Four Type K inputs with a large, backlit display.
  • SD-card recording for reviewing temperature changes over time.
  • Separate high and low alarm limits for each channel, with buzzer and flashing LED indication.
  • Fourteen recording intervals, from 1 second to 90 minutes.
  • Manual recording, scheduled start/stop recording and a memo function.
  • MAX/MIN, relative readings, T1–T2 temperature difference and offset functions.
  • Battery operation, optional AC power and a tripod mounting point.

Probes are sold separately. Choose the number and type required for your application.

Main Unit Specifications

SpecificationSK-L400T
Catalogue number 8191-00
Channels and input 4 channels; Type K thermocouples with ASTM (formerly ANSI) miniature connectors
Display range −202.0 to 1,372°C; actual measuring range depends on the probe
Main-unit accuracy ±(0.3% of reading + 1)°C at 23 ±5°C; probe accuracy must also be considered
Surface-probe allowance Sato specifies an additional 2% of reading error when a surface probe is connected
Temperature coefficient ±(0.01% of reading + 0.1)°C per °C outside 18 to 28°C
Resolution 0.1°C from −202.0 to 999.9°C; 1°C above this range
Sampling Approximately 1 second
Recording intervals 1, 2, 5, 10, 15 or 30 seconds; 1, 2, 5, 10, 15, 30, 60 or 90 minutes
Power 4 AA alkaline or NiMH rechargeable batteries; optional dedicated AC adapter
Battery life Approximately 500 hours with alkaline batteries at room temperature, recording every minute with display and backlight off
Operating environment 0 to 50°C; below 85% RH, without condensation
Dimensions and weight Approximately 158 W × 106 H × 40 D mm; 420 g including batteries
Body material ABS resin

Recording and Data Analysis

Use the SD card to transfer recorded data to a computer. Sato’s 4ch DATALOGGER for Windows software provides graph display, maximum/minimum/average calculations, integrated temperature calculations and marker tools. CSV data can also be reviewed using spreadsheet software.

Sato SK-L400T four-channel temperature data analysis software

Download the current software from Sato and confirm compatibility with your computer before purchase. The published English documentation lists Windows versions through Windows 10; Windows 11 support should be checked separately.

Choose the Right Probe

The following models retain the probe selection shown on the Seacom page. Temperature ratings apply to the specified sensing section, not automatically to its handle, cable or connector. Confirm chemical compatibility, immersion depth and mounting requirements for your application.

Liquid, Semi-Solid and General-Purpose Probes

SK-K010 — Standard liquid and semi-solid probe

SpecificationSK-K010

Sato SK-K010 Standard liquid and semi-solid probe
Catalogue number 8014-30
Temperature range −50 to 300°C
Dimensions / cable 2.3 mm diameter × 150 mm; 0.75 m cable

SK-K020 — Quick-response probe

SpecificationSK-K020

Sato SK-K020 Quick-response probe
Catalogue number 8014-31
Temperature range −50 to 300°C
Dimensions / cable 1.0 mm diameter × 100 mm; 0.75 m cable

MC-K7100 — Standard liquid and semi-solid probe

SpecificationMC-K7100

Sato MC-K7100 Standard liquid and semi-solid probe
Catalogue number 8250-50
Temperature range −100 to 300°C
Dimensions / cable 2.3 mm diameter × 150 mm; 1.5 m cable

MC-K7101 — General-purpose probe

SpecificationMC-K7101

Sato MC-K7101 General-purpose probe
Catalogue number 8250-52
Temperature range −100 to 700°C
Dimensions / cable 3.2 mm diameter × 250 mm; 1.5 m cable

MC-K7102 — Higher-temperature probe

SpecificationMC-K7102

Sato MC-K7102 Higher-temperature probe
Catalogue number 8250-54
Temperature range 0 to 800°C
Dimensions / cable 4.8 mm diameter × 500 mm; 1.5 m cable

Wire, Asphalt and Compost Probes

MC-K7103 — Asphalt probe with stainless steel grip

SpecificationMC-K7103

Sato MC-K7103 Asphalt probe with stainless steel grip
Catalogue number 8250-56
Temperature range 0 to 300°C
Dimensions / cable 5.0 mm diameter × 250 mm; 1.5 m heat-resistant cable

MC-K7105 — Duplex wire probe with stainless steel shielding

SpecificationMC-K7105

Sato MC-K7105 Duplex wire probe with stainless steel shielding
Catalogue number 8250-57
Temperature range −100 to 300°C
Dimensions / cable 0.65 mm wire diameter × 10 m; 0.3 m connecting cord

MC-K7106 — Asphalt probe with resin grip

SpecificationMC-K7106

Sato MC-K7106 Asphalt probe with resin grip
Catalogue number 8250-58
Temperature range 0 to 300°C
Dimensions / cable 5.0 mm diameter × 250 mm; 1.5 m cable

MC-K7108 — Compost probe

SpecificationMC-K7108

Sato MC-K7108 Compost probe
Catalogue number 8250-67
Temperature range 0 to 300°C
Dimensions / cable 8 mm diameter × 900 mm; 1.5 m cable

MC-K7109 — Asphalt probe with stainless steel grip

SpecificationMC-K7109

Sato MC-K7109 Asphalt probe with stainless steel grip
Catalogue number 8250-68
Temperature range 0 to 300°C
Dimensions / cable 5 mm diameter × 250 mm; 1.5 m cable

Stationary Surface Probes

MC-K7301 — Stationary surface probe

SpecificationMC-K7301

Sato MC-K7301 Stationary surface probe
Catalogue number 8250-60
Temperature range 0 to 600°C
Dimensions / cable 25 mm diameter × 40 mm sensing head; 1.5 m cable

MC-K7304 — Flat-surface attachment probe

SpecificationMC-K7304

Sato MC-K7304 Flat-surface attachment probe
Catalogue number 8250-63
Temperature range 0 to 300°C
Dimensions / cable 17 × 14 × 0.6 mm sensing tip; 3 m heat-resistant cable

MC-K7307 — Lower-temperature surface probe

SpecificationMC-K7307

Sato MC-K7307 Lower-temperature surface probe
Catalogue number 8250-64
Temperature range −30 to 400°C
Dimensions / cable 17 mm diameter × 25 mm sensing head; 1.5 m cable

MC-K7308 — L-shaped surface probe

SpecificationMC-K7308

Sato MC-K7308 L-shaped surface probe
Catalogue number 8250-66
Temperature range −30 to 600°C
Dimensions / cable 17 mm diameter sensing head; 1.5 m cable

Water, Clip and Air Probes

MC-K7500 — Water-temperature probe

SpecificationMC-K7500

Sato MC-K7500 Water-temperature probe
Catalogue number 8250-70
Temperature range −30 to 100°C
Dimensions / cable 17 mm diameter × 123 mm; 10 m cable

MC-K7501 — Black clip probe

SpecificationMC-K7501

Sato MC-K7501 Black clip probe
Catalogue number 8250-71
Temperature range −20 to 60°C
Dimensions / cable 2 m coated thermocouple cable

MC-K7502 — Red clip probe

SpecificationMC-K7502

Sato MC-K7502 Red clip probe
Catalogue number 8250-72
Temperature range −20 to 60°C
Dimensions / cable 2 m coated thermocouple cable

MC-K7503 — Telescopic probe

SpecificationMC-K7503

Sato MC-K7503 Telescopic probe
Catalogue number 8250-73
Temperature range −20 to 80°C
Dimensions / cable 180 to 940 mm extension; 0.6 to 1.36 m cable

MC-K7504 — Waterproof probe

SpecificationMC-K7504

Sato MC-K7504 Waterproof probe
Catalogue number 8250-74
Temperature range −50 to 200°C
Dimensions / cable 5 mm diameter × 20 mm sensing section; 3 m cable

MC-K7505 — Air probe with cable

SpecificationMC-K7505

Sato MC-K7505 Air probe with cable
Catalogue number 8250-75
Temperature range −20 to 60°C
Dimensions / cable 18 W × 51.3 H × 10.3 D mm; 3 m cable

MC-K7506 — Plug-in air probe

SpecificationMC-K7506

Sato MC-K7506 Plug-in air probe
Catalogue number 8250-76
Temperature range −20 to 60°C
Dimensions / cable 18 W × 51.3 H × 10.3 D mm

Thermocouple Junction Cable

The existing Seacom selection also includes a junction cable with 1 m of vinyl-coated, 0.32 mm thermocouple wire. Confirm its temperature limits, polarity and connector arrangement before ordering.

Thermocouple junction cable for Sato SK-L400T

Accessories and Setup

Sato currently lists an 8 GB SD card, four AA alkaline batteries and an instruction manual with the main unit. A carrying case appears in the leaflet; confirm the supplied package when ordering. The analysis software is available as a download.

The dedicated AC adapter is optional. Specify an adapter suitable for the local mains supply; the Japanese 8191-90 adapter listing specifies 100 VAC input.

  • Long recordings: choose the recording interval, storage arrangement and power source before starting.
  • Extended thermocouple wiring: check cable resistance and connector compatibility; the logger’s permitted signal-source resistance is 200 Ω or less.
  • Surface measurements: maintain consistent contact and account for the specified surface-probe error allowance.
  • Calibration: specify the channels, probes and calibration points required with your enquiry.

Related Temperature Instruments

Need Help Selecting an SK-L400T and Probes?

Contact Seacom Process Instruments Sdn Bhd with the number of measuring points, target material, temperature range, recording duration and required cable lengths. We can help you compare probe options and confirm the logger configuration.

Download

  SK-L400T catalogue   (316.49k)


Specific References

12 other products in the same category:

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Sekonic ST-50A Digital Temperature and Humidity Chart Recorder

Sekonic ST-50A Digital Temperature and Humidity Chart Recorder

The Sekonic ST-50A displays temperature and relative humidity and records both on a continuous paper chart.

  • Electronic temperature and humidity sensing with LCD display.
  • Optional extension cables for remote sensor placement.
  • Battery operation or a suitable external DC supply.
  • Desktop or wall-mounted installation.

Being phased out: confirm availability before ordering. Alternatives include the Sato Sigma II for paper records, Sato SK-L754 for electronic logging and Vaisala viewLinc for centralised monitoring.

Vaisala Temperature and Humidity Logger VDL200

Vaisala VDL200 PoE Data Logger for viewLinc CMS

The Vaisala VDL200 is a secure Power-over-Ethernet data logger for monitoring temperature, relative humidity, carbon dioxide and analog or Boolean inputs in controlled and GxP-regulated environments.

Designed for the Vaisala viewLinc Continuous Monitoring System, the VDL200 combines interchangeable smart probes, onboard memory and battery backup to provide reliable, gap-free environmental monitoring.

Sekonic Universal 6 channel Recorder SP-100 / SP100

Sekonic SP-100 Universal 6-Channel Chart Recorder

The Sekonic SP-100 is a portable universal 6-channel chart recorder for temperature and process signals.

  • Thermocouple, Pt100, DC voltage and 4–20 mA inputs.
  • Colour chart recording with configurable ranges and scaling.
  • Selectable chart speeds and recording formats.
  • Optional memory-card recording.

Discontinued model. Contact Seacom for availability, pricing and configuration details.

Sato Thermohygrograph Sigma II 7210-00 7211-00

Sato Sigma II NSII-Q Quartz Thermohygrograph

The Sato Sigma II NSII-Q continuously records temperature and relative humidity on an easy-to-read paper chart, providing a visible record without requiring a computer or network.

  • Temperature ranges of −15 to +40 °C or −10 to +50 °C
  • Relative-humidity range from 0 to 100 %RH, non-condensing
  • Selectable 1-day, 7-day or 32-day chart rotation
  • Transparent cover allows the chart to be viewed while closed
  • Battery-powered quartz clock with no external supply required
  • Suitable for warehouses, laboratories, clean areas and production rooms
Sato Thermohygrograph Mini Cube

Sato Mini-Cube 7008-10 Temperature and Humidity Chart Recorder

The Sato Mini-Cube 7008-10 records temperature and relative humidity on a seven-day paper chart for routine inspection and filing.

  • Temperature range: −15 to 40°C.
  • Humidity range: 5 to 100%RH, non-condensing.
  • Quartz-controlled seven-day chart rotation.
  • Replaceable cartridge pens.
  • Powered by one AA zinc-carbon battery.
  • Supplied with 55 sheets of seven-day chart paper.
Temperature And RH Data Logger (CMS, FDA Approved) DL2000

Vaisala DL2000 Temperature and Humidity Data Logger

The Vaisala DL2000 combines precision temperature and relative-humidity monitoring with optional analog or door-contact inputs for viewLinc systems.

  • Scheduled for future discontinuation; confirm availability before specifying
  • Current replacement platform: Vaisala VDL200 with suitable smart probes
  • Internal temperature and relative-humidity measurement
  • Optional current, voltage or Boolean input configurations
  • Onboard memory and a typical 10-year battery life
Long Range Wireless Data Logger (CMS, FDA Approved) RFL100

Vaisala RFL100 Wireless Data Logger and AP10 Access Point

The Vaisala RFL100 uses secure, long-range VaiNet wireless technology to monitor temperature, relative humidity and carbon dioxide with the AP10 Access Point and viewLinc Continuous Monitoring System.

  • At least 50 m typical indoor wireless range
  • Up to 32 RFL100 data loggers per AP10
  • 30 days of local measurement memory
  • Approximately 18 months of battery operation for temperature and humidity monitoring
Isuzu Thermohygrograph TH27R

Isuzu TH27R Quartz Thermohygrograph – Discontinued

The Isuzu TH27R paper temperature and humidity recorder has been discontinued and is no longer recommended for new installations. Seacom continues to support existing instruments with selected chart papers and recording pens.

  • Legacy temperature range from −20 to +50 °C
  • Relative-humidity range from 0 to 100 %RH
  • Quartz-driven cylindrical paper-chart recorder
  • Replacement TH27R chart papers and cartridge pens remain available
  • Existing recorder and chart details must be confirmed before ordering
  • Closest current substitute: Sato Sigma II NSII-Q thermohygrograph
Temperature and Humidity Datalogger SK-L750 Series

Sato SK-L750 Series Temperature and Humidity Data Logger – SK-L751 / SK-L754

The Sato SK-L750 Series provides portable, configurable recording for temperature or temperature and humidity, with interchangeable probes, local display, USB communication and microSD data transfer.

  • SK-L751: two-channel temperature data logger
  • SK-L754: one temperature and one relative-humidity channel
  • 16,000 stored readings per channel
  • Four recording modes and 14 selectable logging intervals
  • USB real-time monitoring and CSV data export
  • AA-battery operation with optional AC-adapter power
Sekonic ST-50M Digital Thermohygrograph — Discontinued

Sekonic ST-50M Digital Thermohygrograph — Discontinued

The Sekonic ST-50M digital thermohygrograph is discontinued. It combined temperature and humidity measurement with paper chart recording and SD-card storage.

  • Paper records: consider the Sato Sigma II NSII-Q.
  • Electronic records: consider the Sato SK-L754 temperature and humidity data logger.
  • Centralised monitoring and alarms: consider Vaisala RFL100, AP10 and viewLinc.

Contact Seacom to match the replacement to your recording requirements. Features and accessories differ from the original ST-50M.

6, 12 Channels Temperature DataLogger AM-9000 Series

Anritsu AM-9000 Series 6 and 12-Channel Temperature Data Logger

The Anritsu AM-9000 Series records temperature from six or twelve thermocouple channels in one portable instrument. Choose a fixed thermocouple-type model or a flexible multi-input model for temperature and DC-voltage measurement.

  • Choice of 6-channel or 12-channel instruments
  • Fixed thermocouple-type and multi-input versions
  • Supports E, K, J, T and R thermocouples according to model
  • 120,000 measurement-data memory
  • USB 2.0 Micro-B communication for data transfer
  • Battery operation or optional AC adaptor
  • Optional AMS-950 software for PC analysis

Ask Seacom about the AM-9000 Series

Anritsu AM-8000 Series 6/12-Channel Temperature Data Logger — Discontinued

Anritsu AM-8000 Series 6/12-Channel Temperature Data Logger — Discontinued

The Anritsu AM-8000 Series is discontinued and has been replaced by the AM-9000 Series.

For a replacement, select the appropriate channel count, thermocouple input configuration and recording interval.

  • 6-channel and 12-channel replacement options.
  • Fixed thermocouple-type or multi-input models.
  • USB communication and optional AMS-950 analysis software.
  • Confirm existing probe, connector and accessory compatibility.

View the Anritsu AM-9000 Series replacement.

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