Inkbird IBS-P04R
Inkbird IBS-P04R Solar Powered Pool Thermometer Set: Water Temperature, TDS, and EC Monitor User Manual
1. Introduction
The Inkbird IBS-P04R is a solar-powered 3-in-1 pool thermometer set designed for precise monitoring of water temperature, Total Dissolved Solids (TDS), and Electrical Conductivity (EC). This device is suitable for various aquatic environments including saltwater pools, spas, hot tubs, and aquaculture, providing real-time insights into water quality and temperature for optimal conditions and safety.
This manual provides detailed instructions for setting up, operating, and maintaining your IBS-P04R thermometer set.
2. Product Components
The Inkbird IBS-P04R set includes two main components:
- Floating Sensor: This unit floats in the water and measures temperature, TDS, and EC. It is solar-powered and transmits data wirelessly.
- Indoor Monitor: This unit receives data from the floating sensor and displays the measurements. It also allows for customization of settings.

Figure 2.1: Inkbird IBS-P04R Floating Sensor and Indoor Monitor.

Figure 2.2: Product dimensions for the floating sensor and indoor monitor.
3. Key Features
- 3-in-1 Water Quality Monitoring: Simultaneously measures water temperature, Total Dissolved Solids (TDS), and Electrical Conductivity (EC).
- Solar-Powered Operation: The floating sensor recharges automatically in sunlight, eliminating the need for frequent battery replacements.
- IP68 Waterproof Rating: The floating sensor is built with a seamless, corrosion-proof construction, ensuring durability and full submersion capability.
- Ultra-Long Wireless Transmission: Monitor water quality from a distance of up to 300 meters (980 feet). The system supports connection with up to 9 sensors simultaneously for multi-zone monitoring.
- Fast-Reacting Probes: Equipped with sensitive and accurate probes for quick detection of water parameters.
- Customizable Comfort Levels: Set personalized temperature and TDS purity levels on the indoor monitor.
- Wide Application: Ideal for swimming pools, hot tubs, spas, hot springs, and small ponds.

Figure 3.1: Overview of the Inkbird IBS-P04R's main features.

Figure 3.2: The floating sensor is solar-powered, ensuring continuous operation without battery costs.

Figure 3.3: The IP68 waterproof rating and anti-collision gasket ensure durability in aquatic environments.

Figure 3.4: The device offers a wireless transmission range of up to 300 meters (980 feet).

Figure 3.5: The IBS-P04R is suitable for a wide range of aquatic applications.
4. Setup Guide
4.1. Floating Sensor Setup
- Power On: Short press the power button located on the top of the floating sensor. The display will illuminate.
- Temperature Unit Switch: Short press the power button again to toggle between Celsius (°C) and Fahrenheit (°F).
- Power Off: Long press the power button for 5 seconds to turn off the floating sensor.
- Solar Charging: Place the floating sensor in direct sunlight for 5 to 7 hours to ensure a full charge before initial use.
4.2. Indoor Monitor Setup
- Install Batteries: Open the battery compartment on the back of the indoor monitor. Insert 2 AAA batteries (included), ensuring correct polarity. Close the battery compartment securely.
4.3. Pairing and Automatic Connection
Once both the floating sensor and indoor monitor are powered on, they should automatically connect. If they do not connect, press the action button on the floating sensor to initiate automatic connection.

Figure 4.1: Ensure both devices are powered on for effortless pairing.
Video 4.1: Inkbird IBS-P04R Operation Guide. This video demonstrates the basic setup, power functions, battery installation, and pairing process for the pool thermometer set.
5. Operation Instructions
5.1. Indoor Monitor Display Overview

Figure 5.1: Detailed view of the indoor monitor display and its indicators.
5.2. Changing Temperature Unit (°C/°F)
On the indoor monitor, short press the °C/°F button to switch the temperature display between Celsius and Fahrenheit.
5.3. Understanding Water Temperature Comfort Level
The indoor monitor displays a visual indicator for water temperature comfort:
- COLD: Appears when the water temperature is below the set 'COLD' threshold.
- HOT: Appears when the water temperature is above the set 'HOT' threshold.
- COMFORT: Appears when the water temperature is between the 'COLD' and 'HOT' thresholds.
5.4. Understanding TDS Purify Level
The indoor monitor provides a visual indicator for TDS water purity:
- GOOD: Appears when TDS is below the set 'GOOD' threshold.
- POOR: Appears when TDS is above the set 'POOR' threshold.
- FAIR: Appears when TDS is between the 'GOOD' and 'POOR' thresholds.

Figure 5.2: TDS and EC measurement ranges and water purity level indicators.
5.5. Customizing Water Temperature Comfort Level & TDS Water Purity
You can customize the thresholds for temperature comfort and TDS purity levels:
- Enter Setting Mode: Long press the °C/°F button on the indoor monitor to enter the setting mode.
- Adjust Values: When an indicator (e.g., COLD temperature) flashes, use the Max/Min (◀) or CH/R (▶) buttons to adjust the value.
- Confirm and Proceed: Press the °C/°F button to confirm the current setting and move to the next setting option (e.g., from COLD to HOT temperature, then to GOOD TDS, then POOR TDS).
- Exit Setting: Continue pressing °C/°F until all settings are confirmed, or wait for the display to automatically exit setting mode after a period of inactivity.

Figure 5.3: Customizing temperature comfort and TDS purity thresholds.
5.6. MAX/MIN Records
The indoor monitor records the maximum and minimum temperature readings:
- View Records: Short press the Max/Min (◀) button to display the maximum (MAX) and then minimum (MIN) recorded values.
- Reset Records: Long press the Max/Min (◀) button to reset the MAX/MIN records.
5.7. Changing Channels (for Multiple Sensors)
If you are using multiple floating sensors (up to 9), you can switch between their readings on the indoor monitor:
- Switch Channels: Press the CH/R (▶) button once to switch between linked pool thermometers from channel 1 to 9.
- Channel 0 (Cycle Display): If you switch to channel 0, the indoor monitor will automatically cycle through and display each linked pool thermometer's readings for 2 seconds in turn.
5.8. Resetting Channels
To reset all linked channels:
- Reset: Press and hold both the Max/Min (◀) and CH/R (▶) buttons simultaneously for 3 seconds. This will clear all previously linked channels.
6. Maintenance
- Cleaning: Regularly clean the floating sensor, especially the probes, with a soft cloth and fresh water to prevent mineral buildup and ensure accurate readings. Do not use abrasive cleaners or solvents.
- Solar Panel: Keep the solar panel on the floating sensor clean and free of debris to ensure efficient charging.
- Storage: When not in use for extended periods, ensure the floating sensor is fully charged, then power it off. Store both units in a cool, dry place away from direct sunlight.
- Battery Replacement: Replace the AAA batteries in the indoor monitor when the low battery indicator appears.
7. Troubleshooting
- No Reading on Indoor Monitor:
- Ensure both the floating sensor and indoor monitor are powered on.
- Check if the indoor monitor batteries are installed correctly and have sufficient power.
- Press the action button on the floating sensor to re-initiate connection.
- Ensure the floating sensor is within the 300m transmission range and there are no significant obstructions.
- Reset the channels on the indoor monitor (refer to Section 5.8) and attempt to reconnect.
- Inaccurate Readings:
- Clean the probes of the floating sensor thoroughly. Mineral buildup can affect accuracy.
- Ensure the floating sensor is fully submerged in the water.
- Compare temperature readings with another reliable thermometer to verify.
- For TDS/EC, ensure the sensor is not in an area with stagnant water or high chemical concentration that might temporarily skew readings.
- Floating Sensor Not Charging:
- Ensure the solar panel is clean and exposed to direct sunlight for several hours.
- Avoid placing the sensor in shaded areas.
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | IBS-P04R |
| Brand | Inkbird |
| Power Source | Solar Powered (Floating Sensor), 2x AAA Batteries (Indoor Monitor) |
| Temperature Range | -40°C to 70°C (-40°F to 158°F) |
| Temperature Accuracy | ±1°C (±1.8°F) |
| TDS Test Range | 0-9999 ppm |
| TDS Accuracy | ±2% F.S |
| EC Test Range | 0-20000 us/cm |
| EC Accuracy | ±2% F.S |
| Sampling Interval | 5 seconds |
| Wireless Transmission Distance | Up to 300m (980ft) in open air |
| Waterproof Rating | IP68 (Floating Sensor) |
| Display Type | Digital |
| Outer Material | Acrylonitrile Butadiene Styrene (ABS) |
| Included Components | IBS-P04R Pool Thermometer (Floating Sensor), Indoor Monitor, AAA Batteries |
9. Warranty and Support
Inkbird products typically come with a manufacturer's warranty. Please refer to the warranty card included in your product packaging or visit the official Inkbird website for specific warranty terms and conditions.
For technical support, troubleshooting assistance, or any product-related inquiries, please contact Inkbird customer service through their official website or the contact information provided in your product documentation.
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