Recorder, Datalogger and Transmitter

Dickson circular chart recorders provide a paper record of temperature, humidity, pressure or external transmitter signals, depending on the model. Select the recorder by measurement type, chart size, recording period and installation requirements.

• Temperature and humidity: KT8 and TH8 models for temperature-only or combined temperature and relative humidity recording.
• Pressure: PW4 and PW8 families with 4-inch or 8-inch circular charts.
• Universal input: Legacy ET855 recorder information for existing voltage and current signal installations.
• Replacing an older recorder? Refer to the model comparison below before ordering a replacement or consumables.

Monitor four measurement points with the Sato SK-L400T 4-channel temperature data logger. Connect Type K thermocouple probes, view all four readings together and record temperature data to an SD card.

• Four-channel display: Compare temperatures on one backlit LCD.
• Flexible recording: Select logging intervals from 1 second to 90 minutes.
• Channel alarms: Set individual upper and lower temperature limits.
• Probe selection: Thermocouple probes are purchased separately.

The Sato SK-RHC-I temperature and humidity transmitter combines a local display with 4–20 mA outputs for connection to compatible monitoring and control equipment. Three interchangeable probe designs support different sensor positions.

• Dual measurement: temperature and relative humidity.
• Probe choice: plug-in, remote cable or slim remote sensor.
• Alarm relay: selectable upper or lower threshold for each parameter.

Probe sold separately. An optional AC adapter is available.

The Sato SK-L200THIIα temperature and humidity datalogger is discontinued and has been replaced by the Sato SK-L750 series. For recording both temperature and relative humidity, select the SK-L754 with a suitable probe.

• Existing equipment: Also identified as SK-L200THIIa or SK-L200THII alpha.
• Temperature and humidity replacement: SK-L754.
• Temperature-only alternative: SK-L751.
• Probe selection: Specify the required measurement range and sensor position when replacing your logger.

The Anritsu AM-8000 series temperature datalogger is a portable instrument available in 6- and 12-channel models for recording multiple measurement points. Internal memory stores readings for transfer to a PC using dedicated software.

Discontinued model: The AM-8000 series has been replaced by the Anritsu AM-9000 series.

The Sekonic ST-50M thermohygrograph records temperature and relative humidity on paper charts and an SD memory card. Its digital display provides local readings, while recorded electronic data can be reviewed on a computer.

Discontinued: The ST-50M is no longer available as a new instrument. This page provides reference information, consumable part numbers and alternative recording options.

• Paper recording: Sato NSII-Q thermohygrograph.
• Electronic data logging: Sato SK-L754 temperature and humidity data logger.
• Connected monitoring: Dickson OCEAView environmental monitoring system.

The Isuzu TH27R (TH-27R) thermohygrograph is discontinued. For a replacement temperature and humidity chart recorder, choose the Sato NSII-Q (Sigma II).

• Replacement options: Sato 7210-00 or 7211-00, depending on the temperature range required.
• Paper recording: Records temperature and relative humidity on a rotating chart.
• Before ordering: Confirm the recording period and matching chart paper.

View the Sato NSII-Q replacement

The Sekonic ST-50A digital thermohygrograph combines an electronic temperature and humidity display with continuous paper chart recording. View current conditions and retain a physical record for environmental checks.

• Paper records: Temperature and humidity recorded together.
• Local display: Check readings directly at the instrument.
• Remote sensor positioning: Optional extension cables up to 50 m.
• Existing installations: Chart paper, replacement pens and sensor enquiries.

Discontinued model: Manufacturer sales have ended. Remaining stock, consumables and alternative instruments are subject to availability.

The Sato NSII-Q Sigma II thermohygrograph records temperature and relative humidity together on a rotating paper chart. Its quartz-driven mechanism provides a visible measurement history for routine environmental checks.

• 7210-00: temperature range -15 to 40°C.
• 7211-00: temperature range -10 to 50°C.
• Humidity: 0 to 100% RH, non-condensing.
• Recording periods: selectable 1, 7 or 32 days.

Monnit ALTA Wireless Humidity (RH) Sensor allows you to accurately monitor the relative humidity of the air within a room or enclosure. - Measures relative humidity, temp

Monnit ALTA® Wireless Thermocouple Sensors leverage Monnit’s award-winning remote monitoring platform to remotely monitor high-temperature applications, such as commercial ovens, kilns, and chimneys. Users benefit from a wireless data transmission range of 1,200+ ft, bank-grade security, and a temperature range of up to 400°C (752°F).

Monnit’s thermocouple is user-programmed to sleep for a specified interval, awake, capture analog data, and then convert this measurement into a temperature. If the sensor captures temperatures outside of user-specified thresholds, an alert is sent via text, email, or call. Monnit’s hardwired thermocouples feature a needle-style probe at the end of a 6’ lead (a K-Type Quick Connect Thermocouple is also available).

Monnit ALTA Soil Moisture Sensor measures soil moisture tension & soil temperature within the soil. It uses a resistive granular matrix element to accurately measure the matric water potential (soil moisture tension) in the soil and a thermistor based temperature element to measure temperature.

- Safe to use in both hot & freezing temperatures
- Reports matric potential (soil water tension) 
- Moisture readings in centibar & kPa
- 0 to 240 centibar (kPA)
- Will not dissolve in soil
- Internally compensated for commonly found salinity levels
- Easy to install and use compared to traditional tensiometers
- Stainless steel electrodes
- No maintenance required
- Temperature readings in C/F.
- 5 ft removable lead