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.
The Sato SK-L750 Series records environmental or process measurements for later review on a Windows PC. Choose the SK-L751 for two temperature channels or the SK-L754 when temperature and relative humidity must be recorded together.
Both instruments store 16,000 readings per channel, display the current measurements locally and support USB communication, microSD transfer, scheduled recording, upper and lower warning limits and four memory-management modes. Interchangeable probes allow one logger to be adapted to different locations and measurement tasks.
| Selection point | SK-L751 | SK-L754 |
|---|---|---|
| Primary measurement | Temperature | Temperature and relative humidity |
| Measurement channels | Two temperature channels | One temperature and one humidity channel |
| Maximum measurement range | −40 to +105 °C, depending on connected probe | Temperature −20 to +80 °C and humidity 5 to 95 %RH, depending on connected probe |
| Probe choice | Plug-in, corded, sleeve, high-temperature, grip and immersion configurations | Plug-in or corded temperature-humidity probe |
| Ingress protection | IP65 with compatible corded SK-L751 probes and without the AC adapter | No waterproof rating |
| Typical applications | Cold storage, refrigerators, freezers, equipment, liquids and two-point temperature comparison | Rooms, warehouses, laboratories, production areas and storage environments |
| Catalogue number | 8800-00 | 8870-00 |
Probes are ordered separately. The measuring range, accuracy, response, cable and environmental suitability are determined by the selected probe—not by the logger alone.
| Specification | SK-L750 Series performance |
|---|---|
| Memory capacity | 16,000 readings per channel |
| Logging intervals | 1, 2, 5, 10, 15 or 30 seconds; 1, 2, 5, 10, 15, 30, 60 or 90 minutes |
| Display refresh | Approximately 1 second |
| External memory | microSD or SDHC up to 32 GB, FAT32 format |
| Communication | USB connection to Windows PC; 1.5 m communication cable included |
| Power | Two AA alkaline batteries or optional AC adapter |
| Battery life | Approximately 500 hours in measurement mode; up to 16,000 logged readings at any interval when the display is off |
| Operating environment | −10 to +60 °C, below 85 %RH and non-condensing |
| Dimensions | Approximately 114 × 80 × 35 mm, excluding protrusions |
| Weight | SK-L751 approximately 232 g; SK-L754 approximately 227 g, including batteries |
| Mode | How it records | Recommended use |
|---|---|---|
| Once | Records until the 16,000-reading memory is full, then stops | A defined study where existing data must not be overwritten |
| Repeatedly | Returns to the beginning and overwrites the oldest readings when memory is full | Keeping the most recent measurement history |
| Ends at | Stops after a user-selected number of readings from 1 to 16,000 | Tests requiring a predetermined dataset |
| By page | Divides memory into four pages of 4,000 readings | Recording several locations or test periods separately with one logger |
The SK-L751 accepts two thermistor temperature probes. It can monitor two locations simultaneously, compare product and air temperature, or record two points within the same process. The available probes cover general ambient measurement, remote sensing, surface or sleeve arrangements and immersion duties.
| SK-L751 probe | Construction | Typical use |
|---|---|---|
| SK-L751-1 | Plug-in probe; −10 to +60 °C | Air temperature immediately around the logger |
| SK-L751-2 | Probe with 1.6 m sensor cable | Remote room, cabinet, refrigerator or equipment measurement |
| SK-L751-21 / -22 | Sleeve probe; standard or silicone-cable version | Temperature measurement where a protected probe stem is helpful |
| SK-L751-23 / -24 | High-temperature sleeve probe with silicone cable | Higher-temperature equipment and process locations within the selected probe rating |
| SK-L751-25 | Resin-grip probe with silicone cable | Hand-positioned or general-purpose process checks |
| SK-L751-31 / -32 | Immersion probe; standard or silicone-cable version | Compatible liquids and immersion measurement |
The SK-L754 records one temperature and one relative-humidity channel from a combined interchangeable probe. It is suited to warehouses, laboratories, offices, production rooms, display areas and other clean, non-condensing environments.
| SK-L754 probe | Temperature range | Humidity range | Recommended use |
|---|---|---|---|
| SK-L754-1 | −10 to +60 °C | 5 to 95 %RH | Compact plug-in measurement beside the logger |
| SK-L754-2 | −20 to +80 °C | 5 to 95 %RH | Remote measurement using the 1.6 m sensor cable |
The SK-L754 probes are not waterproof and must not be immersed or exposed to condensation. Use the optional replaceable sensor filter in dusty environments and place the probe where air can circulate around it.
Sato Datalogger for Windows is used to configure the instrument, download stored readings, display graphs and export data in CSV format. When the logger remains connected by USB, the software can also display measurements in real time.
Upper and lower warning limits can be configured for each measurement. When a limit is crossed, the alarm indicator illuminates and the display shows Hi or Lo. The indication clears when the reading returns within the configured limits.
A scheduled start time can be programmed in advance, and key lock helps prevent accidental operation while logging or waiting to start. Logged readings remain stored if the battery is exhausted or the power supply fails.
For longer unattended studies, use the optional AC adapter with batteries installed. The logger normally uses the AC supply and changes to battery power if the AC input is interrupted.
Standalone logger or continuous monitoring system? The SK-L750 Series is suitable for local recording and periodic manual data retrieval. For centralised monitoring, automatic alarm notification, audit trails and multi-site data management, select a purpose-built continuous monitoring system instead.
Calibration applies to the logger and selected probe as a measurement system. Keep each calibrated probe associated with its certificate and document any probe changes. The calibration interval should reflect the required accuracy, application risk, operating conditions and quality procedure.
Seacom can assist with model and probe selection, system configuration and calibration planning. Provide the measurement parameter, required range, number of points, environment, cable length, recording duration and reporting requirement when requesting a quotation.
Seacom Process Instruments supplies the Sato SK-L751 and SK-L754 data loggers for temperature and humidity recording applications. Our team can help choose the logger, probes, sensor filters, AC adapter and calibration arrangement for the measurement task.
Contact Seacom with your temperature and humidity range, application, required number of channels, probe style, cable length, logging duration and calibration requirement so we can recommend a suitable SK-L750 configuration.
The Sato Mini-Cube 7008-10 records temperature and relative humidity on a seven-day paper chart for routine inspection and filing.
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.
The Sekonic ST-50M digital thermohygrograph is discontinued. It combined temperature and humidity measurement with paper chart recording and SD-card storage.
Contact Seacom to match the replacement to your recording requirements. Features and accessories differ from the original ST-50M.
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.
The Sato Mini-Alpha 7006-00 is a compact thermohygrograph that records temperature and relative humidity on a seven-day paper chart.
The Sekonic SP-100 is a portable universal 6-channel chart recorder for temperature and process signals.
Discontinued model. Contact Seacom for availability, pricing and configuration details.
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.
The Sekonic ST-50A displays temperature and relative humidity and records both on a continuous paper chart.
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 Vaisala DL2000 combines precision temperature and relative-humidity monitoring with optional analog or door-contact inputs for viewLinc systems.
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.
Dickson round chart recorders provide a visible paper record of temperature or temperature and humidity for routine inspection and filing.
Send your existing model number, measurement range and chart reference so we can help identify a suitable configuration.
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.
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.
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.
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.
DeltaTrak in-transit temperature loggers and recorders document temperature conditions during shipment.
