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SK-L400T catalogue
Temperature Datalogger (4 Channel) SK-L400T
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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
| Specification | SK-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.
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
| Specification | SK-K010 |
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| 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
| Specification | SK-K020 |
|---|---|
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| 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
| Specification | MC-K7100 |
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| 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
| Specification | MC-K7101 |
|---|---|
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| 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
| Specification | MC-K7102 |
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| 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
| Specification | MC-K7103 |
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| 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
| Specification | MC-K7105 |
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| 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
| Specification | MC-K7106 |
|---|---|
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| 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
| Specification | MC-K7108 |
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| 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
| Specification | MC-K7109 |
|---|---|
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| 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
| Specification | MC-K7301 |
|---|---|
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| 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
| Specification | MC-K7304 |
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| 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
| Specification | MC-K7307 |
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| 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
| Specification | MC-K7308 |
|---|---|
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| 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
| Specification | MC-K7500 |
|---|---|
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| 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
| Specification | MC-K7501 |
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| Catalogue number | 8250-71 |
| Temperature range | −20 to 60°C |
| Dimensions / cable | 2 m coated thermocouple cable |
MC-K7502 — Red clip probe
| Specification | MC-K7502 |
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| Catalogue number | 8250-72 |
| Temperature range | −20 to 60°C |
| Dimensions / cable | 2 m coated thermocouple cable |
MC-K7503 — Telescopic probe
| Specification | MC-K7503 |
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| 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
| Specification | MC-K7504 |
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| 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
| Specification | MC-K7505 |
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| 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
| Specification | MC-K7506 |
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| 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.
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
- Temperature instruments and probes
- Anritsu AM-9000 Series 6- and 12-channel temperature data loggers
- Sato measuring 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.
16 other products in the same category:
Dickson round chart recorders provide a visible paper record of temperature or temperature and humidity for routine inspection and filing.
- 3-inch SC3: compact temperature recorder
- 4-inch SL4: temperature recorder with digital display
- 8-inch KT8: temperature recording with sensor and channel options
- 8-inch TH8: temperature and relative humidity recording
- Replacement selection assistance for older KT6, TH6, KT8P, KT856 and TH8P models
Send your existing model number, measurement range and chart reference so we can help identify a suitable configuration.
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.
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
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
The DicksonOne TWP provides local touchscreen viewing and cloud-connected monitoring of temperature, relative humidity or differential pressure. Its replaceable sensor system simplifies calibration and supports different monitoring applications using the same logger platform.
- Large 8-inch LCD touchscreen
- WiFi, Ethernet and Power over Ethernet connectivity
- Approximately 1,000,000 sample-point backup capacity
- Up to 70 hours of rechargeable battery backup
- Replaceable temperature, humidity, thermocouple, RTD and differential-pressure sensors
- Phone, text and email alarms through a DicksonOne subscription
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
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.
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.
The Sato SK-L200TH II temperature and humidity data logger is discontinued. The replacement is the Sato SK-L754, selected with a compatible temperature and humidity probe.
- Electronic temperature and humidity recording.
- 16,000 stored readings per channel.
- USB communication and microSD data transfer.
- Choice of plug-in or cabled probe, purchased separately.
DeltaTrak in-transit temperature loggers and recorders document temperature conditions during shipment.
- 16000 Series: disposable paper chart recorders with model-dependent recording periods from 5 to 90 days.
- FlashLink Mini PDF: single-use electronic logger with USB PDF and CSV reports.
- Choose according to shipment duration, temperature range and the receiving team's record requirements.
The Sato Thermohygrograph 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
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
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.
The Sato Mini-Alpha 7006-00 is a compact thermohygrograph that records temperature and relative humidity on a seven-day paper chart.
- Temperature range: −15 to 50°C.
- Humidity range: 10–100% RH.
- Quartz drum drive powered by one AA battery.
- Desktop or wall-mounted use; approximately 0.8 kg.
- Replaceable chart paper and cartridge pens.
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
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.