TAP-21
Task Ambient Photo Sensor
Installation Guide
Overview
This guide covers all models of TAP-21 sensor.
The TAP-21 product family includes:
•
T
AP-21U Photo Sensor with 902 MHz radio
• TAP-21Y Photo Sensor with 868 MHz radio
• TAP-21J Photo Sensor with 928 MHz radio
The package includes the photo sensor and installation guide.
TAP-21 Sensor Description
The 21 series TAP Task Ambient Photo sensor (also referred to as the sensor
in this guide) is a wireless, energy harvesting sensor that monitors light levels
within interior spaces and transmits the value to lighting controllers.
The sensor measures ambient light in two ranges: 0-510 lux (0 - 50 foot candles)
and 0-1024 lux (0 - 100 fc) and is intended for indoor use only.
NOTE: The TAP is a solar powered device that absorbs solar energy storing it for use
during low light periods. Before assigning the TAP device to a receiver/controller, the
device should be exposed to a good light source for a minimum of 5 minutes or install a
start assist battery.
