TLM-21 / TLM-14 / TLM-04C Tower Light Sensor
- Monitors equipment status directly from the tower light
- Short installation time
- Compatible with a wide range of tower light models
- LED status indicator
- Patented light tunnel design
- 24 V DC rated voltage
- NPN (sinking) transistor output
- 0 to +50 °C operating temperature range
Introduction
The GoodLinker® Tower Light Sensor (TLM-21 / TLM-14 / TLM-04C) is an economical, accurate way to monitor machine status without any connection to the equipment's internal wiring. The self-contained housing lets the customer install the sensor without modifying the machine. Typical applications include machine utilization (availability) calculation, remote status monitoring, status history logging and abnormal-condition alarms.
Selection Guide
Measure the tier height of the tower light before installation.
| SENSOR MODEL | SUGGESTED INSTALLATION AND APPLICATION |
|---|---|
| TLM-21 | Tower lights with 45 to 90 mm tier height |
| TLM-14 | Tower lights with 25 to 45 mm tier height |
| TLM-04C | Multi-color tower lights |

Specifications
| SENSOR MODEL | TLM-21 / TLM-14 | TLM-04C |
|---|---|---|
| Operating Ambient Temperature | 0 to +50 °C | 0 to +50 °C |
| Operating Humidity | 90% RH or less, non-condensing | 90% RH or less, non-condensing |
| Housing Color | White | White |
| Rated Voltage | 24 V DC | 24 V DC |
| Operating Current | 18 mA | 19 mA |
| Sensing Method | Three single-color sensors (red, yellow, green) | One multi-color sensor |
| Response Time | 30 ms | 500 ms |
| Minimum Operating Illuminance | ≥ 250 lx | ≥ 450 lx |
| Output Type | NPN (sinking) transistor output | NPN (sinking) transistor output |
| Net Weight | 160 g (including 2 m signal cable) | 150 g (including 2 m signal cable) |
| Warranty | 1-year limited warranty | 1-year limited warranty |
Dimensions
The figures below show the dimensions of the GoodLinker® Tower Light Sensor series.
Unit: mm



Resources
| NAME | TYPE | VERSION | RELEASE DATE | |
|---|---|---|---|---|
| GoodLinker® Tower Light Sensor Quick Installation Guide | Manual | v1.0.1 | Feb 28, 2020 | Download |









