RETEKESS TH104

RETEKESS TH104 Wireless Key Finder Instruction Manual

Model: TH104

1. Introduction

This Wireless Finder helps you locate lost items like keys, remotes, wallets, eyeglasses, and more. With a simple press of a color-coded button on the remote, the corresponding receiver will emit a loud beep sound and flash, guiding you to your lost item. The system includes a remote transmitter and six receivers, designed for ease of use and quick retrieval of valuables. The remote transmitter comes with a convenient base for storage and display.

2. Product Overview

RETEKESS TH104 Wireless Key Finder with remote transmitter and six color-coded receivers.
The RETEKESS TH104 system includes one remote transmitter and six color-coded receivers, along with a base for the transmitter.
Contents of the RETEKESS TH104 Wireless Key Finder package.
The package contains 1 Transmitter, 6 Receivers, 6 Key Rings, 6 Hook&Loop Tapes, 7 CR2032 Batteries (installed), 1 Transmitter base, 1 Black Opener, and 1 User Manual.

3. Setup

3.1. Batteries Installation

The device comes with batteries pre-installed. If replacement is needed, follow these steps:

For the Remote Transmitter:
  1. Remove the battery cover located on the back of the remote.
  2. Install the batteries according to the (+) and (-) marks inside the battery compartment.
  3. Close the battery cover.
Diagram showing battery installation for the remote transmitter.
Steps for installing batteries in the remote transmitter.
For the Receivers:
  1. Open the outer shell with the opening tool provided.
  2. Replace the CR2032 battery. Please mind the polarity of the battery.
  3. Close the outer shell.

Warning: Do not mix old and new batteries. Do not mix Alkaline, standard (carbon-zinc) or rechargeable batteries.

3.2. Attaching Receivers

Attach the color-coded receivers to your frequently lost items using the included key rings or double-sided adhesive tape.

Person attaching a receiver to keys and another person with a receiver on a backpack.
Receivers can be attached to keys using the key ring or stuck to valuables like wallets or phones using adhesive tape.

4. Operating Instructions

  1. Attach the color-coded receivers to your frequently lost items with the key rings or double-sided adhesive tape.
  2. Press and release the corresponding color-coded button on the remote.
  3. If the receiver is in range, it will beep and the LED indicator will flash.
  4. If no beep is heard, change your location or use new batteries and press the button again.
This video demonstrates how to attach the key rings to the receivers and how to use the remote to activate the receivers to find lost items.
Diagram showing the remote control range of the key finder.
The remote control range is approximately 15-35 meters. The receiver emits a sound of ≥80dB when activated.
Illustration of finding lost items with the key finder in a bedroom setting.
Pressing the color-coded button on the remote activates the corresponding receiver, which beeps and flashes to help locate lost items like keys, glasses, or phones.

5. Maintenance

Regularly check the battery levels of both the transmitter and receivers. Replace CR2032 batteries as needed, following the polarity markings. Keep the devices clean and dry. Avoid exposing them to extreme temperatures or moisture.

6. Troubleshooting

No beep from receiver:

  • Ensure the receiver is within the remote's operating range (15-35 meters).
  • Check and replace the CR2032 battery in the receiver if necessary. Ensure correct polarity.
  • Try pressing the corresponding button on the remote again, possibly from a different location.

Remote not activating receivers:

  • Check and replace the batteries in the remote if needed.
  • Ensure the remote is charged or has fresh batteries.

Short battery life:

  • Some users have reported that batteries may drain even when not in active use. Consider using high-quality CR2032 batteries for better longevity.
  • Ensure the devices are stored in a cool, dry place when not in use.

7. Specifications

Table of technical specifications for the transmitter and receiver.
Detailed technical specifications for the RETEKESS TH104 Wireless Key Finder.
Transmitter Specifications
FeatureSpecification
Operating Frequency433.92MHz
Working Voltage2.4V-3.6V
Standby Current≤1uA
Working Current≤20mA
Output Power≤10dBm
Number of Supported Receivers6 (6*N)
Working IndicatorRed LED
Lifetime100,000 times
Working Temperature0°C ~ 45°C
Storage Temperature-10°C ~ 60°C
Battery TypeCR2032, 3V
Plastic MaterialABS
Transmit DistanceUp to 40m in the open area
Receiver Specifications
FeatureSpecification
Operating Frequency433.92MHz
Bandwidth10MHz
Receive Sensitivity-90dBm
Working Current≤2mA
Standby Current55uA (Average Value)
Normal Working IndicatorRed LED flashes, buzzer beep
Sound Volume>85dB
Battery TypeCR2032 3V
Working Temperature0°C ~ 45°C
Storage Temperature-10°C ~ 60°C
Dimensions48*33*6.9mm
Plastic MaterialABS

8. User Tips

  • Range: The effective range is approximately 15-35 meters indoors. In open areas, it can reach up to 40 meters. Be aware that walls and other obstacles may reduce the effective range.
  • Battery Life: While batteries can last for a couple of months, some users report faster drainage. Using high-quality CR2032 batteries is recommended for better longevity.
  • Sound: The receivers emit a loud beep (over 85dB) and flash to help locate items. The sound volume or tone cannot be changed or adjusted.
  • No GPS/Bluetooth: This device uses RF (Radio Frequency) technology, not GPS or Bluetooth. It helps you find items within its direct signal range, not track them over long distances or via a map.
  • Gifting: This key finder makes a practical gift for friends or family who frequently misplace items.

9. Safety Information

RF Energy Exposure and Product Safety Guide

ATTENTION!

Before using this radio, read this guide which contains important operating instructions for safe usage and RF energy awareness and control for compliance with applicable standards and regulations.

Local Government Regulations

When radios are used as a consequence of employment, the Local Government Regulations requires users to be fully aware of and able to control their exposure to meet occupational requirements. Exposure awareness can be facilitated by the use of a product label directing users to specific user awareness information. Your Retekess radio has a RF Exposure Product Label. Also, your Retekess user manual, or separate safety booklet includes information and operating instructions required to control your RF exposure and to satisfy compliance requirements.

Unauthorized Modification and Adjustment

Changes or modifications not expressly approved by the party responsible for compliance may void the user's authority granted by the local government radio management departments to operate this radio and should not be made. To comply with the corresponding requirements, transmitter adjustments should be made only by or under the supervision of a person certified as technically qualified to perform transmitter maintenance and repairs in the private land mobile and fixed services as certified by an organization representative of the user of those services. Replacement of any transmitter component (crystal, semiconductor, etc.) not authorized by the local government radio management departments equipment authorization for this radio could violate the rules.

FCC Requirements:

  • This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference (2) this device must accept any interference received, including interference that may cause undesired operation.
  • This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.

CE Requirements:

(Simple EU declaration of conformity) Henan Eshow Electronic Commerce Co.,Ltd declares that the radio equipment type is in compliance with the essential requirements and other relevant provisions of RED Directive 2014/53/EU and the ROHS Directive 2011/65/EU and the WEEE Directive 2012/19/EU; the full text of the EU declaration of conformity is available at the following internet address: www.retekess.com.

IC Requirements:

Licence-exempt radio apparatus: This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage; (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

RF Warning Statements:

  • The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.
  • DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may also cause you to exceed RF exposure limits. A proper antenna is the by the manufacturer for use with this radio, and the antenna gain shall not exceed the specified gain by the manufacturer declared.
  • To avoid interference, turn off the radio in areas where signs are posted to do so.
  • DO NOT operate the transmitter in areas that are sensitive to electromagnetic radiation such as hospitals, aircraft, and blasting sites.

Avoid Choking Hazard:

Small Parts. Not for children under 3 years.

Protect your hearing:

WARNING

  • Use the lowest volume necessary to do your job.
  • Turn up the volume only if you are in noisy surroundings.
  • Turn down the volume before adding headset or earpiece.
  • Limit the amount of time you use headsets or earpieces at high volume.
  • When using the radio without a headset or earpiece, do not place the radio's speaker directly against your ear.
  • Use careful with the earphone maybe possible excessive sound pressure from earphones and headphones can cause hearing loss.

Note: Exposure to loud noises from any source for extended periods of time may temporarily or permanently affect your hearing. The louder the radio's volume, the less time is required before your hearing could be affected. Hearing damage from loud noise is sometimes undetectable at first and can have a cumulative effect.

Approved Accessories:

WARNING

  • This radio meets the RF exposure guidelines when used with the Retekess accessories supplied or designated for the product.
  • Use of other accessories may not ensure compliance with the RF exposure guidelines and may violate regulations.
  • For a list of Retekess-approved accessories for your radio model, visit the following website: http://www.Retekess.com

10. Warranty and Support

Guarantee

  1. This guarantee card should be kept by the user, no replacement if lost.
  2. Most new products carry a two-year manufacturer's warranty from the date of purchase.
  3. The user can get warranty and after-sales service as below: Contact the seller where you buy. Products Repaired by Our Local Repair Center.
  4. For warranty service, you will need to provide a receipt proof of purchase from the actual seller for verification.

Exclusions from Warranty Coverage:

  • To any product damaged by accident.
  • In the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs.
  • If the serial number has been altered, defaced, or removed.

A detailed user manual in PDF format is available for download at https://manuals.plus/m/156ceb4c586f5c629ce708c7d48b5be62b88abef47f7ab9fd026128fbdbf5091.


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