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Highest II Catalogue
Temperature And Humidity Meter Highest II
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Sato HIGHEST II Temperature and Humidity Meter
The Sato HIGHEST II combines a dial hygrometer and digital thermometer for convenient local checks of room temperature and humidity.
- Humidity range: 20 to 100% RH.
- Temperature range: 0 to 50°C.
- Human hair humidity sensor and thermistor temperature sensor.
- 2% RH dial graduations and 0.1°C temperature display resolution.
- 135 mm diameter body with wall-mount bracket.
- Powered by one AA battery.
Sato HIGHEST II Temperature and Humidity Meter
The Sato HIGHEST II combines a dial hygrometer with a digital thermometer for checking room conditions. Its humidity sensor uses a human hair bundle, while a thermistor measures temperature.
Use it as a local indicator where staff need to read temperature and relative humidity during routine inspections. The round display keeps both measurements together in one compact instrument.
Key Features
- Dial humidity indication and digital temperature display.
- Humidity range of 20 to 100% RH.
- Temperature range of 0 to 50°C.
- Wall-mount bracket for installation at the reading point.
- Compact 135 mm diameter body.
Technical Specifications
| Specification | HIGHEST II |
|---|---|
| Catalogue number | 7542-00 |
| Humidity sensor | Human hair bundle |
| Temperature sensor | Thermistor |
| Humidity range | 20 to 100% RH |
| Temperature range | 0 to 50°C |
| Humidity accuracy | ±4% RH at 40 to 80% RH and 15 to 25°C; ±7% RH elsewhere within the measuring range |
| Temperature accuracy | ±1°C from 0 to 40°C; ±2°C above 40 to 50°C |
| Humidity scale interval | 2% RH |
| Temperature display resolution | 0.1°C |
| Body material | ABS resin |
| Dimensions | 135 mm diameter × 33 mm depth |
| Weight | Approximately 230 g including battery |
| Power | One AA battery |
Scale interval and display resolution are different from accuracy. The 0.1°C display does not mean that temperature readings are accurate to ±0.1°C.
Where to Use It
Consider the HIGHEST II for rooms, work areas or storage locations where a visible local reading is useful and its accuracy meets the application requirements. Compare the expected conditions and acceptance limits with the specification before selection.
Mount the instrument where the reading represents the area you want to check. Avoid placing it directly beside a heat source, in sunlight or in the discharge from an air-conditioning outlet unless that specific location is the measurement target. Allow the instrument to settle after moving it.
Local Readings or Electronic Records?
If your inspection procedure requires a written record, record the displayed readings together with the date, time and location. If you need to capture changes between inspections, select a temperature and humidity data logger. For multiple locations with central monitoring and alarms, consider a continuous monitoring system.
- Humidity meters and temperature and humidity data loggers
- Vaisala RFL100 and AP10 for viewLinc continuous monitoring
- More Sato measuring instruments
Installation and Calibration
The supplied mounting accessories include a wall bracket and screws. Follow the instruction manual for installation and care. Tell Seacom if you require calibration documentation so the available service and required measurement points can be confirmed before ordering.
Need Help Selecting a Room Humidity Meter?
Contact Seacom Process Instruments Sdn Bhd with your expected temperature and humidity range, required accuracy, installation location and whether readings need to be recorded. We can help you compare a local indicator with data logging and continuous monitoring options.
16 other products in the same category:
The Vaisala HMK15 is a portable, power-free humidity calibrator for checking and adjusting humidity probes and transmitters with saturated salt references.
- Suitable for laboratory work and on-site humidity checks
- Supports 11, 33, 75, 85 and 97 %RH nominal reference points
- Typically stabilises in 10 to 30 minutes when temperatures are equal
- Certified, ready-dosed salt packages are available
- Basic and universal chamber lids suit several probe diameters
- No electrical power or external humidity generator required
The compact Vaisala HM40 Series provides reliable humidity and temperature spot checks for HVAC, construction, warehouses, laboratories, museums and industrial applications.
- Humidity accuracy up to ±1.5% RH
- HM41, HM42, HM45 and HM46 probe configurations
- Numeric, statistical and graphical trend displays
- Traceable calibration certificate included
The Vaisala HM70 was a handheld meter for humidity and temperature spot checks, field measurements, data logging and verification of installed Vaisala instruments. It is discontinued and replaced by the Vaisala Indigo80 handheld indicator with an HMP80 probe.
- Legacy MI70 handheld indicator with HMP75, HMP76 or HMP77 probe
- Relative-humidity measurement from 0 to 100 %RH
- Probe-dependent temperature measurement from −70 to +180 °C
- Numerical and graphical display with portable data recording
- Current replacement: Indigo80 with HMP80N or HMP80L
- HMP80N for general measurements; HMP80L for extended temperature reach
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.
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 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.
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 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 Indigo80 is a robust handheld indicator and data logger for industrial spot checks, process diagnostics, field calibration and measurement data analysis.
- Connect and display measurements from up to two compatible probes
- Measure humidity, temperature, dew point, carbon dioxide and other industrial parameters
- Use with HMP80, DMP80 and GMP80P portable measurement probes
- Record up to approximately 5.5 million real-time measurement values
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 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 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
Sato SK-170GT WBGT Heat Stress Monitor is a portable all-in-one instrument for assessing heat stress in indoor and outdoor working environments.
It measures and displays the WBGT index, ambient temperature, globe temperature and relative humidity. Its built-in black globe detects radiant heat from direct sunlight, hot machinery and surrounding surfaces.
- WBGT, temperature, globe temperature and humidity measurement
- Selectable indoor and outdoor WBGT modes
- Conforms to JIS B 7922 Class 2 based on ISO 7243
- Adjustable WBGT alarm with approximately 75 dB buzzer
- MAX/MIN, display hold and automatic power-off
- Wind-speed compensation setting
- Optional RS-232C connection for real-time PC monitoring
- Tripod mounting hole and carrying case included
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 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 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.