Radius® BZ1 Area Monitor

Never miss an alarm thanks to old, bright LED lights.
Show gas readings from nearby monitors so you know what’s happening across your site and to your peers.
Gain visibility from a distance with a large, easy-to-read screen.
Get to work faster with drop-and-go setup and a sturdy all-weather base.
Cut right through high-noise environments with alarms that sound at 108 dB, plus bold LED lights.
Know what’s happening at a distance with the largest display of any area monitor and customizable alarm action messages, such as “EVACUATE” or “VENTILATE.”
Minimize the cost of labor and risks of charging and rotating equipment in hazardous locations using Solar Power Supply, which gives you unlimited run time.
DualSense® Technology uses two sensors to detect the same gas, bolstering your safety efforts.
With Radius BZ1, you can detect up to seven gases simultaneously using 18 sensor options, including photoionization detectors (PID).

Dimensions:	29 x 29 x 55 cm (11.5 x 11.5 x 21.5 in)
Weight:	7.5 kg (16.5 lb)
Display:	Instrument shall have a 11.2 cm (4.4 in) monochrome LCD display
Keypad:	Instrument shall have 3 pushbuttons to operate
Battery:	Instrument shall be powered by a nickel-metal hydride (NiMH) battery
Temperature Range:	-20 °C to 55 °C (-4 °F to 131 °F)
Operating Humidity Range:	15% to 95% relative humidity (RH) noncondensing (continuous)
Storage Temperature Range:	-20 °C to 55 °C (-4 °F to 131 °F)
Pressure Range:	1 atm ± 0.2 atm
Certifications:	ATEX: Ex da ia IIC T4 Ga, Equipment Group and Category II 1G; Ex db ia IIC T4 Gb with IR sensor installed, Equipment Group and Category II 2G IECEx: Ex da ia IIC T4 Ga; Ex db ia IIC T4 Gb with IR sensor installed UL: Class I, Division 1, Groups A, B, C, and D; T4. Class 1 Zone 0 AEx da ia IIC T4 Ga1. Class 1 Zone 0 AEx db ia IIC T4 Gb with IR sensor installed