The Ryobi Tek 4 line of rechargeable batteries and cordless devices all run on the same compact 4-volt lithium-ion batteries. Products include:
- Laser measurer
- Noise suppression headphones
- Infrared thermometer
- Digital key lock box
- Motion sensing alarm
- LED flashlight
- Digital camera
- Self-leveling plumb/cross laser
- Digital multimeter
- Portable power source
Ryobi Tek 4 devices are available at The Home Depot.
