PW-43 Navkar Systems RF433MHz Wireless Watch Style SOS Panic Button for Elderly, Patients & Emergency Alarm System

Wireless Watch Style SOS Panic Button for Elderly, Patients

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Product Overview

The NAVKAR SYSTEMS PW-43 RF433MHz Wireless Watch-Style SOS Panic Button is a wearable emergency alert device designed for elderly users, patients and personal safety applications. Its wristband design keeps the SOS button easily accessible, allowing the user to press the button when emergency assistance is required.

When activated, the PW-43 transmits a wireless SOS signal to a compatible RF433MHz alarm control panel, while the red LED flashes to indicate signal transmission. It uses a CR2450 battery, provides approximately 100m transmission distance in an open environment, and is designed for use in homes, nursing homes, healthcare centres, hospitals and other care environments. The button is a one-way transmitter and does not generate an alarm sound independently; a compatible alarm control panel is required.

Main Purpose

• Emergency Alerting – Provides a one-touch method to transmit an SOS signal to a compatible alarm control panel.
• Elderly Safety – Keeps an emergency button conveniently accessible on the wrist for elderly users.
• Patient Assistance – Supports quick emergency calling in healthcare, nursing and patient-care environments.
• Personal Safety – Allows the wearer to send an emergency alert without needing to reach a wall-mounted button.
• Alarm System Integration – Works with a compatible RF433MHz alarm control panel; the button itself does not generate an alarm sound.

Key Benefits

• Wearable Wristband Design – Keeps the SOS button readily available while moving around.
• One-Touch Activation – Simple press of the SOS button sends the wireless alert.
• Wireless Convenience – No signal cable is required between the wearable button and alarm panel.
• Extended Wireless Coverage – The supplied manual specifies transmission of approximately 100m in an open environment.
• LED Signal Indication – Red LED flashes when the button transmits an SOS signal.
• Battery Powered – Uses a CR2450 battery for convenient wireless operation.

Important Features

• Model: PW-43
• Wireless Frequency: 433.92MHz
• Transmission Distance: Open distance >100m
• Power Supply: DC 3V
• Battery: CR2450
• Alarm Trigger: Button-activated
• Indicator: Red LED flashing during transmission
• Communication: One-way RF wireless transmission
• Wearable Format: Wristband-style SOS button
• Alarm Panel: Requires compatible alarm control panel
• Operating Temperature: -10°C to +55°C
• Operating Humidity: <95% RH
• Standalone Operation: Not supported; the button cannot generate an alarm sound independently.

Product Specifications

• Model: PW-43
• Product Type: Wireless Watch-Style SOS Panic Button / Emergency Alert Button
• Brand: NAVKAR SYSTEMS
• Power Supply: DC 3V
• Communication: RF Wireless
• Wireless Frequency: 433.92MHz
• Operating Range: Open distance >100m
• Material: ABS Plastic
• Dimensions: 50 x 50 x 10 Millimeters
• Weight: 50g
• Other Specifications: CR2450 battery, battery life up to 1 year, red LED signal indicator, one-way transmitter, button-triggered alarm, operating temperature -10°C to +55°C, operating humidity <95% RH, compatible RF433MHz alarm control panel required.
  

Applications

• Elderly Care – Provides wearable emergency assistance for senior citizens at home or in care facilities.
• Patient Assistance – Allows patients to send an SOS signal to a compatible alarm control panel when help is required.
• Nursing Homes – Suitable for emergency calling and assistance in nursing and residential care environments.
• Healthcare Centres & Hospitals – Can be used as a wearable emergency alert device for patients and caregivers.
• Home Safety – Provides a convenient wearable SOS option for emergency situations at home.

Suitable For

• Elderly & Patients – Suitable for users who need quick access to an emergency alert.
• Healthcare & Care Facilities – Suitable for nursing homes, hospitals and healthcare centres.
• Indoor Use – Suitable for home and care environments within the wireless coverage of the compatible alarm panel.
• Wearable Installation – Designed to be worn around the wrist for convenient access to the SOS button.
• Compatible RF433MHz Alarm Systems – Requires a compatible alarm control panel for receiving and processing the SOS signal.

Not Suitable For

• Standalone Operation – The PW-43 cannot generate an audible alarm independently.
• Without Compatible Alarm Panel – Requires pairing with a compatible alarm control panel.
• Direct Emergency Calling – The button transmits an SOS signal; it does not independently call emergency services.
• Extreme Environments – Avoid exposure to extreme temperatures, moisture, oil, dust and strong electromagnetic fields.
• Beyond Wireless Coverage – Signal performance may be affected by distance, obstacles and RF interference.

Package Contents

• PW-43 Wireless Watch-Style SOS Panic Button – 1 Piece
  
• User Manual – 1 Piece

Package contents should be checked against the actual supplied product, as accessory inclusion may vary by product batch.

Installation

1. Choose the Location – Wear the PW-43 securely on the wrist and ensure the SOS button is easily accessible to the user.
2. Install the Battery – Insert the specified CR2450 battery and ensure the battery is installed correctly.
3. Pair with Alarm Panel – Register the PW-43 with a compatible RF433MHz alarm control panel according to the panel's wireless learning procedure.
4. Test the Device – Press the SOS button and confirm that the compatible alarm panel receives the signal and performs its programmed alarm function.

Wiring

The PW-43 is a wireless, battery-powered one-way transmitter, so no external signal or power wiring is required. It must be used with a compatible alarm control panel.

• Power: Internal CR2450 battery / DC 3V
• Input: SOS button press
• Output: 433.92MHz wireless RF signal to the compatible alarm control panel
• Other Connections: No wired connection required; pairing with a compatible RF433MHz alarm control panel is required.

Programming

1. Enter Learning Mode – Put the compatible alarm control panel into its wireless device/panic-button learning mode.
2. Activate the PW-43 – Press the SOS button to transmit its RF signal to the alarm panel.
3. Confirm Registration – Verify that the alarm panel recognizes the PW-43 and assign the required alarm/zone function according to the panel's programming procedure.

The exact learning sequence depends on the compatible alarm control panel; the PW-43 product information does not specify a universal panel programming sequence.

Operation

1. Wear the Device – Keep the PW-43 securely on the wrist so the SOS button remains readily accessible.
2. Press the SOS Button – Press the button when emergency assistance is required. The red LED flashes when the alarm signal is triggered.
3. Alarm Panel Responds – The compatible alarm control panel receives the wireless signal and activates its programmed alarm/notification function. The PW-43 itself cannot generate a sound alarm independently.

Troubleshooting

• Problem: PW-43 does not trigger the alarm panel
  Solution: Check that the PW-43 is correctly paired with the compatible alarm control panel and press the SOS button again.
• Problem: Alarm panel does not receive the wireless signal
  Solution: Check the battery and move the device closer to the alarm panel. Obstacles or RF interference may affect wireless transmission.
• Problem: Red LED does not flash when the SOS button is pressed
  Solution: Check the CR2450 battery installation and replace the battery if required.

Common Problems

• Device not paired – Register the PW-43 with the compatible RF433MHz alarm control panel.
• Weak or missing wireless signal – Check the distance, obstacles and possible RF interference between the PW-43 and alarm panel.
• Low or incorrectly installed battery – Check the CR2450 battery and ensure it is installed correctly.

FAQs

Q: Is the PW-43 a standalone alarm?
A: No. The PW-43 is a one-way wireless transmitter and must be used with a compatible alarm control panel. It cannot generate a sound alarm independently.

Q: What happens when the SOS button is pressed?
A: The PW-43 transmits an RF433MHz SOS signal to the compatible alarm control panel, and the red LED flashes during activation.

Q: What battery does the PW-43 use?
A: The supplied product information specifies a CR2450 battery with DC 3V operation.

Spare Parts

• Not Applicable

Warranty

Not Applicable

Videos

• [Installation Video]
• [Programming Video]
• [Product Demonstration Video]

Manuals

• [User Manual]
  

Downloads

• [Datasheet]: NA
• [Wiring Diagram]: NA
• [Catalogue / Brochure]: NA
• [Other Download]: NA

Customer Questions

Q: Is the PW-43 a standalone alarm?
A: No. It is a one-way wireless transmitter and must be used with a compatible RF433MHz alarm control panel.

Q: How is an emergency alert activated?
A: Press the SOS button on the PW-43 to transmit the emergency signal to the paired alarm control panel.

Q: Does the PW-43 require wiring?
A: No. It is a battery-powered wireless device and does not require external signal wiring.

Q: What wireless frequency does it use?
A: The PW-43 operates at 433.92MHz.

Q: What battery is used?
A: The device uses a CR2450 battery with DC 3V operation.

Q: Does the button have an alarm siren?
A: No. The PW-43 cannot generate a sound alarm by itself. The connected alarm control panel handles the alarm function.

Q: Is it suitable for elderly people and patients?
A: Yes. Its watch-style design keeps the SOS button readily accessible for elderly users, patients and caregivers.

Q: Does the device indicate when an SOS signal is transmitted?
A: Yes. The red LED flashes when the SOS button is activated.

Q: What is the wireless transmission range?
A: The supplied specifications state an open-distance transmission of approximately 100m. Actual performance can vary with obstacles and RF interference.

Q: Can the PW-43 be used with any alarm system?
A: It should only be used with a compatible RF433MHz alarm control panel that supports the required wireless transmitter.

Escalation to Support

If the issue cannot be resolved using the information above, Please contact Navkar Systems at Whatsapp Support number: 91384 68548 with the following information:

• Product Model:
• Purchase Date:
• Problem Description:
• Installation Details:
• Photos / Videos:
• Previous Troubleshooting Performed: