Maintain precise environmental control with this ACI Outside Air Relative Humidity and Temperature Sensor. Specifically manufactured for Alerton and Trend systems, this robust industrial sensor (Model RH-103P-OSA-DC-HT) is designed for accurate outdoor monitoring. It provides a distinct relative humidity output of 0 to 10 VDC with a strictly specified ±3% accuracy. Additionally, it features a reliable 10K Ohm Type II thermistor for accurate temperature readings. The sensor is housed in a durable grey industrial enclosure featuring a multi-slotted stainless steel sensing probe, engineered to withstand the elements while ensuring optimal airflow for precise measurements. This genuine ACI component is marked for distributed control systems and ensures high-performance distributed networking with high availability for deterministic networked operation.

Key Features

Outside Air Monitoring: Engineered for reliable humidity and temperature sensing in outdoor environments.
High Accuracy RH Sensing: Delivers a specific ±3% Relative Humidity accuracy.
Dual Output: Combined RH and temperature monitoring in one unit.
Standard Interface: Features a 0 to 10 VDC RH output and a 10K Ohm Type II temperature thermistor.
Alerton/Trend Compatible: Manufactured by ACI, Inc. specifically for integration with Alerton and Trend control systems.
Durable Industrial Design: Robust grey enclosure with a ventilated stainless steel sensing probe for long-term outdoor deployment.
Factory Authentic: Body includes part number, serial data (e.g. 21139/0053), environmental 50-year logo, and other regulatory logos (UL listed, CSA, CSA-FM Approved, N998 from provided references).

Specifications

Manufacturer: ACI, Inc.
For Brand/System: Alerton / Trend
Model Number: RH-103P-OSA-DC-HT (on label), RH-103P-OSADCHT (on box text)
Date Code: 1643
Application: Outside
Humidity Accuracy: ±3% RH
RH Output: 0 to 10 VDC
Temperature Sensor Type: 10K Type II thermistor
Temperature Reference Point: @ 77°F (25°C)
Enclosure Color: Grey
Probe Material: Metal/Stainless Steel (Vented)
Markings: CE, UL, CSA, CSA-FM Approved (Class I Div 2), 50-year environmental logo (from references).

3% RH sensor

ACI RH-103P-OSA-DC-HT Outside Air Relative Humidity & Temperature Sensor for Alerton/Trend, 3% RH Accuracy, 10K Ohm Type II Thermistor