Brand：
$134.00
SE
HUIRUIPU HRP-K2000-1 One-way gas alarm controller
On-site fixed installation, wall hanging
4-20mA three-wire system, standard with a Detector, using button operation, with two-level alarm, wall-mounted installation, support indicator light and sound and light dual alarm.
$134.00
SE
HUIRUIPU HRP-K2000-2 Two-Channel Gas Alarm Controller
On-site fixed installation, wall hanging
4-20mA three-wire system, standard with two Detectors, digital cycle display, button operation, with two-level alarm, wall-mounted installation, support indicator light and sound and light dual alarm.
If you don't know how to choose "Gas detector", please consult customer service.