Oregon Scientific THGN132ES User Manual

The Oregon Scientific THGN132ES is a professional-grade wireless thermo-hygrometer designed for monitoring indoor temperature and humidity. It features a clear LCD display, wireless sensor transmission up to 100 feet (30 meters) under optimal conditions, historical min/max records, customizable alerts for temperature and humidity, and a sleek tabletop design. Ideal for home, office, or greenhouse use to ensure environmental comfort and preservation. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting the Sensor 7. Monitoring Data 8. Alert Functions 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main Display Unit, Wireless Remote Sensor (THGR122NX), AC Power Adapter, User Manual.

Feature	Description
LCD Display	Shows current temperature (°F/°C) and humidity (%)
Wireless Sensor	Transmits data from remote location to main unit
Historical Records	Stores and displays minimum and maximum readings
Custom Alerts	User-set alarms for high/low temperature and humidity
Power Source	AC adapter or 2 x AAA batteries (display unit)
Transmission Range	Up to 100 ft (30 m) in open space
Channel Selection	Supports up to 3 different sensors (channels 1, 2, 3)
Clock & Calendar	Built-in time and date display
Wall Mountable	Includes slot for hanging on wall
Low Battery Indicator	Alerts when batteries need replacement

Installation

Unpack and inspect contents. Place display unit on stable surface or mount on wall.

Insert batteries: Open battery compartment on display unit and remote sensor; install batteries observing polarity.
Power display unit: Connect AC adapter or ensure batteries are properly installed.
Position sensor: Place remote sensor in desired location (avoid direct sunlight, heat sources, or moisture).
Sync sensor: Wait for automatic synchronization (may take up to 3 minutes).

WARNING! Use only recommended battery types. Do not expose sensor to extreme conditions beyond its operating range.

First-Time Setup

Power on display unit; follow these initial configuration steps.

Set time and date: Press and hold SET button, use UP/DOWN to adjust values.
Select temperature unit: In settings menu, choose between °F and °C.
Register sensor: Ensure sensor is within range; press and hold CH button on display to search for signal.
Set alerts: Navigate to ALERT menu to configure high/low thresholds for temperature and humidity.

CAUTION! Keep sensor and display unit away from electronic devices that may cause interference.

Specifications

Display Unit Dimensions: 4.7 x 3.1 x 0.8 inches (120 x 80 x 20 mm).
Temperature Range: -4°F to 158°F (-20°C to 70°C).
Humidity Range: 20% to 95% RH.
Transmission Frequency: 433 MHz.
Power Consumption: Low power design for extended battery life.
Operating Conditions: Indoor use only.
Battery Life: Approximately 12 months (sensor), 6 months (display unit on batteries).
Weight: 5.3 oz (150 g) including batteries.

Controls and Settings

Access settings via buttons on front panel: SET, CH (Channel), UP, DOWN, ALERT.

Button Functions: SET enters configuration mode; CH cycles through sensor channels; UP/DOWN adjust values; ALERT toggles alert view and settings.

Display Modes: Current readings, Min/Max records, Clock, Alert status. Settings: Temperature unit (°F/°C), Time/Date format, Alert thresholds, Sensor registration. Historical Data: View by pressing MIN/MAX button; reset with RESET in menu.

Connecting the Sensor

Wireless connection between remote sensor and display unit.

Ensure batteries are installed in both units.
Place sensor within 30 meters of display unit, avoiding obstructions.
Press and hold CH button on display unit for 3 seconds to initiate search.
Wait for signal icon to appear stable on display.

Tip: For best performance, position sensor at same height as display unit and away from metal objects.

Monitoring Data

View current and historical temperature and humidity information.

Current readings: Display shows real-time data from selected channel.
Switch channels: Press CH button to cycle through connected sensors.
View min/max: Press MIN/MAX button to see recorded extremes.
Reset records: In settings menu, select RESET MIN/MAX to clear history.
Clock display: Press CLOCK button to show time and date.

WARNING! Data accuracy may be affected by extreme environmental conditions or interference.

Alert Functions

Set customizable alarms for temperature and humidity thresholds.

Enter alert menu: Press and hold ALERT button for 3 seconds.
Set high/low limits: Use UP/DOWN to adjust values for temperature and humidity separately.
Enable/disable: Toggle alerts ON or OFF for each parameter.
Alert indication: When threshold is crossed, display flashes and alarm sounds (if enabled).

Note: Default factory settings have alerts disabled.

Care & Cleaning

Remove batteries before cleaning. Use soft, dry cloth only; do not use liquids or abrasive cleaners.

CAUTION! Do not submerge any part of the unit in water. Avoid exposure to direct sunlight for extended periods.

Regulatory Information

FCC Part 15: This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © Oregon Scientific. All rights reserved. For support, visit www.oregonscientific.com or contact customer service at 1-800-853-8883.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Dead batteries/power	Replace batteries; check AC adapter connection.
No sensor signal	Distance/obstructions/batteries	Move units closer; replace sensor batteries; re-sync.
Inaccurate readings	Sensor placement	Relocate sensor away from heat sources, vents, or direct sunlight.
Alerts not working	Disabled settings	Enable alerts in menu; check threshold settings.
Display flashing	Low battery/alert triggered	Check battery indicator; review current readings against alert thresholds.

Reset: Remove batteries for 5 minutes to perform hard reset.

Service: 1-800-853-8883; www.oregonscientific.com