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SPECIAL SALE THROUGH 5/28: Use code PUZZLE15 during checkout for 15% off this item!
RFID Prop Trigger with Relay
  • RFID Disc Size Comparison

RFID Prop Trigger with Relay

SKU: 0425-RFID
Consists of a small key fob that is totally self contained (no moving parts or batteries) and a proximity sensor and associated receiver circuit box. When the key fob is brought within 3 inches of the sensor, the unique data encoded in the key fob is transferred to the sensor-receiver, activating whatever device (controller, relay, solenoid, light, locks, etc.) that you have connected to the receiver.

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From: $39.99

To: $57.46

Price as configured: $0.00

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  • Buy 20 with 10% discount each
  • Buy 50 with 15% discount each

Price as configured: $0.00


  • RFID unit with relay, two keys and a master key (used to encode additional keys)
  • Keys are waterproof and crush-resistant
  • Operates on 12v DC
  • Operating frequency 125KHz
  • Sensor measures 2.1" x 1.3" and is attached by a 20" cable to the receiver box (which measures 4 1/8" x 2 1/8"
  • Sensor can be mounted in wood or behind glass or plastic and will still function perfectly.
  • 6 ICs
  • 10 amp relay triggers when unit is activated.
  • Sensing range is 3"
NOTE: The plastic key fobs can be opened to access the discs within. Discs are very small and thin, making them perfect for attaching to props or concealing inside objects!

To Flash New Keys:

1. Make sure the RFID unit is powered on.
2. Make sure the new keys you are using are 125kHZ.
3. Remove the master key from the metal tin.
4. Hold the master key next to the antenna for a few seconds (the antenna is the domed black plastic piece. The top of the dome is where it has the best sensing capabilities).
5. Remove the master key and place your new key near the antenna. Leave it there for 5 seconds.
6. Pull the key away and then bring it back in range of the antenna. The relay should click.


Product Faqs

Ask a Question

  • How do you encode new fobs with with master for your RFID?
    Each RFID trigger comes with a Master Key (it is enclosed in a metal tin). To flash a new key, simply open the tin and hold the new key close to the Master Key for a few seconds. The new key will now be configured to work with that RFID sensor.
  • Will the RFID trigger be able to trigger from the back side of a mirror if the receiver is behind the glass of a mirror and the tag is on the front side of the mirror?
    The RFID does not trigger through mirrors that have metal backs. It does not work through 22ga sheet metal. It barely works through aluminum foil. If you have just a straight up mirror with no metal backing then it will work.