Comprehensive Product Summary – STH-03ZB ZigBee Temperature and Humidity Sensor (Battery-Powered)

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### 1. Product Overview

Product Name: ZigBee Temperature and Humidity Sensor (Battery-Powered)
Model: STH-03ZB
Series: STH Series – ZigBee Wireless Environmental Sensors
Article Number: STH-03ZB
Manufacturer: Nietzsche Enterprise Co., Ltd.
Product Type: Wireless temperature and humidity sensor with ZigBee Home Automation (HA) profile compliance
Version: User’s Manual Ver. 1.03
Manufacturer Contact:
- Email: service@nhr.com.tw
- Website: [www.nhr.com.tw](http://www.nhr.com.tw)
Copyright: © 2011–2014 Nietzsche Enterprise Co., Ltd. All rights reserved.

The STH-03ZB is a compact, high-accuracy digital temperature and humidity sensor designed for wireless environmental monitoring and control applications. It integrates a precision MEMS sensing element with ZigBee wireless communication, enabling seamless integration into ZigBee-based home and building automation systems. The device operates on two AA batteries, offering long-term operation with minimal maintenance and easy scalability through wireless networking.

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### 2. Key Features

- High-Accuracy MEMS Sensor:
Incorporates a built-in MEMS-based temperature and humidity sensing element with ±0.5°C temperature accuracy and ±5% relative humidity accuracy, suitable for both observation and precision control applications.

- Wireless ZigBee Connectivity:
Utilizes IEEE 802.15.4 and ZigBee 2007/PRO protocols, compliant with the ZigBee Home Automation (HA) profile, ensuring interoperability with other ZigBee HA-certified devices such as routers, coordinators, and gateways.

- Battery-Powered Operation:
Powered by two standard AA alkaline batteries (3V total), providing up to one year of operation at a 5-minute transmission interval. This eliminates the need for wiring and reduces installation complexity.

- Flexible Network Topology:
Supports Star, Tree, and Mesh network configurations, allowing flexible deployment in various environments and scalable network expansion.

- Adjustable Transmission Interval:
Transmission interval can be configured from 1 second to 75 minutes using onboard DIP switches, enabling optimization between data frequency and battery life.

- Over-the-Air (OTA) Calibration:
Temperature and humidity calibration can be performed wirelessly using Nietzsche’s QuickView software, simplifying maintenance and ensuring long-term accuracy.

- Compact and Lightweight Design:
Small form factor (approx. 92 × 50 × 23 mm) and lightweight (approx. 37.6 g without batteries) for unobtrusive installation in residential, commercial, or industrial environments.

- Wide Operating Range:
Designed for ambient conditions from -10°C to +55°C (14°F to 131°F) and 0–95% RH, suitable for indoor and semi-controlled environments.

- Regulatory Compliance:
Certified for CE and FCC standards, ensuring electromagnetic compatibility and safety compliance for international markets.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Sensing Type | Combined temperature and humidity sensor |
| Measurement Range | Ambient environmental conditions |
| Temperature Accuracy | ±0.5°C |
| Humidity Accuracy | ±5% RH |
| Wireless Protocol | IEEE 802.15.4, ZigBee 2007/PRO, HA Profile |
| Transmission Range | 100 meters (328 feet) line-of-sight |
| Operating Frequency | 2.4 GHz ISM Band |
| RF Output Power | 1 mW (0 dBm) |
| Receiver Sensitivity | -92 dBm |
| Power Supply | 3V (2 × AA alkaline batteries) |
| Power Consumption | TX: 35 mA; Sleep: 1.3 µA |
| Battery Life | Approx. 1 year @ 5-minute interval (dependent on battery quality) |
| Network Topology | Star / Tree / Mesh |
| Transmit Interval | 1 second to 75 minutes (DIP switch configurable) |
| Operating Temperature | -10°C to +55°C (14°F to 131°F) |
| Operating Humidity | 0–95% RH (non-condensing) |
| Dimensions | 92(L) × 50(W) × 23(H) mm |
| Weight | 37.6 g (1.33 oz) excluding batteries |
| Supported OS | Windows NT / 2000 / XP / Vista / 7 / 8 |
| Certifications | CE / FCC |
| Addressing | IEEE MAC 64-bit unique identifier |

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### 4. Functionality

The STH-03ZB functions as a wireless environmental sensor node within a ZigBee network. It continuously measures ambient temperature and humidity using its integrated MEMS sensor and transmits the data at user-defined intervals to a ZigBee coordinator, router, or gateway device.

Operation Workflow:
1. Sensing: The built-in MEMS element measures temperature and humidity in real time.
2. Data Transmission: Measurements are transmitted wirelessly via ZigBee protocol to a parent device (coordinator or router).
3. Network Integration: The sensor joins a ZigBee network using a unique 64-bit MAC address.
4. Data Access: Collected data can be viewed, logged, or analyzed using compatible software such as QuickView Data PS.
5. Calibration: OTA calibration ensures long-term accuracy without physical intervention.

Use Cases and Applications:
- Building and Home Automation: Integration with ZigBee HA systems for HVAC control, smart thermostats, and environmental monitoring.
- Precision Agriculture: Monitoring greenhouse temperature and humidity for crop optimization.
- Museums and Archives: Maintaining stable environmental conditions for artifact preservation.
- Research and Laboratories: Data collection for environmental studies and controlled experiments.
- Industrial Monitoring: Supervising storage or production environments sensitive to humidity and temperature variations.

Compatibility:
- Fully compatible with ZigBee HA-certified devices and Nietzsche Enterprise’s ecosystem, including routers (WZB-01USBR, WZB-02485R) and coordinators (WZB-01USBCPS, WZB-02485CPS, WZB-05ETPS).

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### 5. Components & Accessories

Package Contents:
- 1 × STH-03ZB ZigBee Temperature and Humidity Sensor
- 1 × Mounting cradle
- 2 × Wall plugs
- 2 × Mounting screws
- 2 × AA alkaline batteries
- User’s Manual

Optional Accessories / Related Devices:
| Device Type | Model | Description |
|------------------|-----------|-----------------|
| Router | WZB-01USBR | ZigBee Wireless Router |
| Router | WZB-02485R | ZigBee Wireless Router |
| Coordinator | WZB-01USBCPS | ZigBee Wireless Coordinator |
| Coordinator | WZB-02485CPS | ZigBee Wireless Coordinator |
| Ethernet Converter | WZB-05ETPS | ZigBee Ethernet Converter |
| Gateway | G07-W | ZigBee Gateway Device |

Software Tools:
- QuickView Data PS Software: Used for OTA calibration, data visualization, and network management.

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### 6. Installation & Setup

Requirements:
- Mounting cradle and included hardware
- Drill with 5 mm (0.2 in) bit (for wall plugs) or 3.5 mm (0.14 in) bit (without wall plugs)
- Size 1 Phillips screwdriver
- Parent ZigBee device (coordinator, router, or gateway)

Installation Steps:
1. Site Selection:
Mount the sensor at least 15 cm (6 in) away from walls or obstructions, avoiding direct sunlight, vents, heaters, or moisture sources.
2. Mounting:
Use the cradle as a template to drill holes, insert wall plugs if needed, and secure with screws. Snap the sensor into the cradle.
3. Battery Installation:
Open the battery compartment, insert two AA batteries with correct polarity, and close the cover. The LED will indicate operational status.
4. Transmission Interval Configuration:
Set DIP switches to define the desired transmission interval (1 sec to 75 min). Power cycle the device to apply changes.
5. Network Joining:
Enable “permit join” mode on the parent device. When the sensor’s green LED flashes once per second, it is ready to join. Successful joining is indicated by three green LED flashes followed by one flash every 60 seconds.
6. Verification:
Confirm data reception using the coordinator or gateway software interface.

LED Status Indicators:
| LED Pattern | Meaning |
|------------------|-------------|
| Green 1 flash/sec | Ready to join network |
| Green 3 flashes (once) | Successfully joined |
| Green 1 flash/60 sec | Normal operation |
| Green 2 flashes/5 sec | Disconnected from parent |
| Red rapid flashing | Removing from network |
| Red 1 flash/15 sec | Low battery |
| Green & Red ON | ZigBee reset (factory default) |

Reset Procedure:
Press and hold the link switch for 5 seconds to reset the device to factory defaults. Both LEDs will illuminate during reset.

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### 7. Performance & Capabilities

- Measurement Accuracy: ±0.5°C (temperature), ±5% RH (humidity)
- Transmission Range: Up to 100 m (328 ft) line-of-sight
- Power Efficiency: Ultra-low sleep current (1.3 µA) ensures extended battery life
- Battery Life Expectancy: Approximately 1 year at 5-minute transmission intervals; shorter intervals reduce battery life proportionally
- Network Scalability: Supports multiple nodes in Star, Tree, or Mesh configurations for robust coverage
- Data Transmission Interval: Configurable between 1 second and 75 minutes via DIP switches
- Environmental Tolerance: Operates reliably between -10°C and +55°C, 0–95% RH
- Interference Resistance: Operates in the 2.4 GHz ISM band with -92 dBm receiver sensitivity, ensuring stable communication in typical indoor environments

Limitations:
- Designed for indoor or semi-controlled environments; not waterproof or suitable for outdoor exposure without protective housing.
- Battery life depends on transmission frequency, ambient temperature, and battery quality.
- Requires ZigBee HA-compatible network infrastructure for operation.

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### 8. Standards & Compliance

- Wireless Standards: IEEE 802.15.4, ZigBee 2007/PRO, ZigBee Home Automation (HA) Profile
- Regulatory Certifications: CE (Conformité Européenne), FCC (Federal Communications Commission)
- Environmental Compliance: RoHS-compliant materials (lead-free construction)
- Safety Compliance: Designed to meet international safety standards for low-voltage, battery-powered devices
- Interoperability: Fully compatible with ZigBee HA-certified devices and networks, ensuring cross-vendor integration

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### 9. Additional Information

Warranty:
Standard manufacturer warranty provided by Nietzsche Enterprise (terms vary by region and distributor). Warranty covers manufacturing defects and hardware failures under normal operating conditions.

Technical Support:
- Email: service@nhr.com.tw
- Online resources, firmware updates, and documentation available at [www.nhr.com.tw](http://www.nhr.com.tw)

Maintenance:
- Replace batteries annually or when red LED indicates low power.
- Avoid exposure to liquids, dust, or corrosive environments.
- Periodic OTA calibration recommended for long-term accuracy.
- Clean sensor housing with a dry, soft cloth; do not use solvents.

Software Updates:
Firmware and QuickView software updates are periodically released by Nietzsche Enterprise to enhance performance, security, and compatibility.

Recommended Practices:
- Install batteries immediately before network joining to maximize lifespan.
- Use high-quality alkaline or lithium batteries from reputable brands.
- Maintain clear line-of-sight between sensor and parent device for optimal signal strength.
- For large installations, deploy additional routers to extend network coverage.

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### Summary

The Nietzsche Enterprise STH-03ZB ZigBee Temperature and Humidity Sensor is a precision-engineered, battery-powered wireless sensor designed for modern automation and environmental monitoring systems. Combining high-accuracy MEMS sensing technology with ZigBee HA wireless communication, it delivers reliable, scalable, and maintenance-friendly performance. Its compact design, flexible network topology, and long battery life make it ideal for applications in smart buildings, research facilities, agriculture, and heritage preservation. With CE/FCC certification, OTA calibration, and full ZigBee interoperability, the STH-03ZB represents a robust and future-ready solution for distributed environmental sensing networks.