1. Introduction and Overview
The Sanitas SFT 77 is a versatile infrared thermometer designed for accurate and rapid temperature measurement. It offers 6 distinct functions for comprehensive health monitoring and household use.
- Ear Thermometer: For quick and precise ear temperature readings.
- Forehead Thermometer: Suitable for measuring forehead temperature, including for sleeping infants.
- Object Thermometer: Measures the surface temperature of objects and liquids.
- Optical Fever Alarm: Provides a visual indication of elevated temperature.
- Date and Time Display: Keeps track of measurement times.
- 30 Memory Slots: Stores previous readings for monitoring temperature trends.
The device features a second-fast measurement, an LED status display for normal or elevated temperatures, an automatic shut-off function, and a battery change indicator. The temperature unit can be switched between Celsius (°C) and Fahrenheit (°F).
Image 1: Sanitas SFT 77 Multifunction Infrared Thermometer. This image shows the white thermometer with a blue backlit digital display showing "36.7" degrees Celsius, a power button with a green ring, and 'M' and 'S' buttons below the display. The brand "SANITAS" is visible at the bottom.
2. Safety Information
- Read the entire instruction manual carefully before first use.
- This device is not a substitute for a doctor's consultation. Always consult a medical professional for health concerns.
- Keep the device out of reach of children.
- Do not immerse the thermometer in water or other liquids.
- Avoid dropping the device or subjecting it to strong impacts.
- Do not use the device if it is damaged.
- Ensure the sensor is clean before each measurement for accurate readings.
- Dispose of batteries and the device according to local regulations.
3. Product Components
The Sanitas SFT 77 package includes:
- 1x Sanitas SFT 77 Multifunction Infrared Thermometer
- Batteries (pre-installed or included separately)
- This Instruction Manual
4. Setup
4.1. Battery Installation
The thermometer operates on batteries, which are typically included. If batteries need replacement or installation:
- Locate the battery compartment cover, usually on the back or bottom of the device.
- Open the cover.
- Insert the new batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
4.2. Powering On/Off
- To power on, press the Power button (often marked with a circle and a vertical line). The display will light up.
- The device features an automatic shut-off function to conserve battery life. It will turn off after a period of inactivity.
- To manually power off, press and hold the Power button for a few seconds.
4.3. Setting Date and Time
Refer to the specific instructions on how to enter the settings mode, usually by pressing and holding the 'M' (Memory) or 'S' (Set) button while the device is off or in standby. Follow the on-screen prompts to adjust the date and time.
4.4. Switching Temperature Units (°C/°F)
The thermometer allows switching between Celsius and Fahrenheit. This setting is often accessible by pressing a specific button (e.g., 'S' button) or a combination of buttons while the device is off or in a specific mode. Consult the display for the current unit and follow prompts to change it.
5. Operating Instructions
5.1. Ear Temperature Measurement
- Ensure the ear probe is clean.
- Gently insert the probe into the ear canal. For children, gently pull the earlobe back to straighten the canal.
- Press the measurement button (often the Power button or a dedicated 'Scan' button).
- A short beep will indicate the measurement is complete, and the temperature will be displayed.
5.2. Forehead Temperature Measurement
- Ensure the forehead sensor is clean.
- Position the thermometer at the center of the forehead, typically 1-3 cm away, or as indicated by the device's specific design.
- Press the measurement button.
- The temperature will be displayed after a short period.
5.3. Object and Liquid Temperature Measurement
- Switch the thermometer to object measurement mode (if applicable, refer to device-specific button functions).
- Point the sensor towards the object or liquid surface. Do not immerse the thermometer in liquids.
- Press the measurement button.
- The surface temperature will be displayed.
5.4. Interpreting LED Indicators and Fever Alarm
- The display is blue-backlit for clear visibility.
- Green LED: Indicates a normal temperature reading.
- Red LED: Activates as an optical fever alarm when the measured temperature is 38°C (100.4°F) or higher. This indicates an elevated temperature.
6. Memory Function
The Sanitas SFT 77 stores up to 30 previous temperature readings, along with the date and time of measurement. This allows for tracking temperature changes over time.
- To access memory, press the 'M' button (Memory) when the device is on or in standby.
- Each press of the 'M' button will cycle through the stored readings, from most recent to oldest.
- The display will show the temperature, date, and time for each stored entry.
7. Maintenance and Care
- Cleaning the Sensor: After each use, especially for ear measurements, gently wipe the sensor with an alcohol swab or a soft cloth dampened with alcohol. Allow it to dry completely before storage.
- Cleaning the Device: Use a soft, dry cloth to clean the body of the thermometer. Do not use abrasive cleaners or immerse the device in water.
- Storage: Store the thermometer in a cool, dry place, away from direct sunlight and extreme temperatures. Keep it in its protective case if one was provided.
- Battery Replacement: Replace batteries when the low battery indicator appears on the display.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Dead or incorrectly inserted batteries. | Check battery polarity or replace batteries. |
| Inaccurate readings. | Dirty sensor, incorrect measurement technique, or device not acclimatized. | Clean sensor. Ensure correct measurement position and distance. Allow thermometer to stabilize at room temperature for 30 minutes. |
| "Lo" or "Hi" displayed. | Temperature is outside the measurable range. | Ensure the measurement is taken correctly and within the specified operating temperature range. |
| Display shows an error message (e.g., "Err"). | Internal error or malfunction. | Turn off the device, remove batteries, wait a few minutes, then reinsert batteries and restart. If the error persists, contact customer support. |
9. Specifications
| Model: | SFT 77 |
| Measurement Type: | Infrared |
| Measurement Modes: | Ear, Forehead, Object |
| Display: | Digital, Blue Backlit |
| Temperature Units: | Celsius (°C) / Fahrenheit (°F) switchable |
| Memory: | 30 measurement values |
| Fever Alarm: | Optical (Red LED for ≥ 38°C) |
| Power Source: | Battery |
| Included Components: | Thermometer, Batteries |
| Material: | Plastic |
| Age Group (Description): | Adult and Child |
10. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact the retailer/manufacturer directly. Keep your proof of purchase for warranty claims.
For technical assistance or further questions regarding the Sanitas SFT 77 thermometer, please visit the official Sanitas website or contact their customer service department.