The Model ST-23A Supervised Bill Trap Transmitter is a battery powered cash drawer bill trap with a built-in transmitter designed for use with Linear’s S1 Format receivers. This transmitter can be used in a variety of retail hold-up applications. The ST-23A is concealed in a cash drawer under a stack of currency, with a single bait bill secured in its money clip. During a hold-up, the cashier removes the stack of currency along with the bait bill. When a bait bill is removed, the transmitter sends a 1-second digitally coded wireless signal to its companion receiver. Four additional 1-second signals are sent within the first minute after the bait bill is removed. When the bait bill is replaced, a restore signal is sent.
Features
- Motion detector: Reports low battery when the cash drawer is open, ensuring you are always informed about the device’s status.
- Alarm, restore, test transmissions: Provides comprehensive functionality for security and maintenance checks.
- Lithium battery powered: Offers long-lasting performance without the need for constant battery replacements.
- Test LED: Allows for easy verification of the transmitter’s operational status.
- Transmit repeat feature: Ensures reliability by sending multiple signals for added security.
- S1 format: Compatible with Linear receivers, facilitating straightforward integration into existing security systems.
- RF frequency: Operates at 303.875 MHz, providing a stable and reliable wireless communication.
- Compact dimensions: Measures 2.4″ W x 4.5″ H x 0.8″ D, allowing for discreet placement within cash drawers.
Linear ST-23A Supervised Bill Trap Transmitter Specifications
| Feature | Details |
| Product Type | Supervised Bill Trap Transmitter |
| Power Source | Lithium battery |
| Dimensions | 2.4″ W x 4.5″ H x 0.8″ D |
| RF Frequency | 303.875 MHz |
| Signal Duration | 1 second |
| Additional Signals | Four signals within the first minute after bait bill removal |
| Compatibility | Linear S1 Format receivers |



















Reviews
There are no reviews yet.