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External Relative Humidity (RH) and Temperature Probe
The RH Temp External Probe works with the ACR SRX2 Temp RH Logger and SmartReader Plus 2 to measure temperature and humidity at a remote location. With its simple four-wire connection and one-meter cable, it’s ideal for monitoring conditions inside chambers, ducts, or other enclosed spaces while keeping the logger easily accessible for setup and data download.

Key Features

  • Compatible with ACR SRX2 Temp RH Logger and SmartReader Plus 2
  • Measures temperature and relative humidity at a remote location
  • Provides dual-location monitoring (internal and external sensors)
  • Simple four-wire terminal connection for quick setup
  • Includes 1 m (3 ft) integrated cable for flexible placement
  • Operates from 0 to 95 % RH across a wide temperature range
  • Magnetic backing and security eyelet for easy field mounting
SKU: 01-0039
$274.00 USD
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Description Specifications Q&A

The RH Temp External Probe is designed for use with both the ACR SRX2 Temp RH Logger and the SmartReader Plus 2. It enables accurate measurement of temperature and relative humidity at a remote location from the main logger.

When connected, the probe provides dual-location monitoring — one set of sensors built into the logger, and another positioned remotely where conditions need to be tracked directly.

With a 1 m (3 ft) integrated cable and a simple four-wire terminal connection, setup is quick and straightforward. Once the external channels are enabled, you’re ready to log data.

This arrangement is especially useful when the sensing point is in a tough-to-reach or environmentally challenging area, such as inside a chamber, duct, or enclosure. The logger can remain easily accessible for setup and data download, while the probe measures conditions precisely at the point of interest.

Operating over a 0 to 95 % RH range and a broad temperature span, this probe delivers reliable readings across a wide variety of indoor and controlled-environment applications.

Specifications

Range 10 to 90% RH, -20°C to 40°C (-4°F to 104°F)
Size 3 meters (10 feet)

Q&A

Click here to visit our NEW Q&A pages.

Calibration

Data loggers are often used in highly regulated environments such as food and pharmaceutical production and storage where strict safety regulations apply. Regulatory agencies generally require proof of calibration.

ACR calibrations are performed using reference standards that have been calibrated and are traceable to the US National Institute of Standards & Technology (NIST). This ensures that all ACR data loggers meet, and perform to, their published specifications, allowing you to be confident that they will assist you in achieving your compliance requirements.

Calibration certificates are provided with every calibration we perform. ACR Systems is an ISO 9001:2015 registered company and calibration records are kept as part of our quality system and can be made available for customer audits.

Calibration Service

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Translation missing: en.general.search.loading
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