Gas detector GM 2.1

Afriso Gas detector GM 2.1
Afriso Gas detector GM 2.1
Afriso Gas detector GM 2.1
Afriso Gas detector GM 2.1
Data sheet gas detector GM 2.1
Afriso Data sheet gas detector GM 2.1


Part no. Remember
Gas detector GM 2.1 61150
DIN rail clip 43100

Blue part no. = in-stock items

Description Format Language Download / Link
Data sheet gas detector GM 2.1 Data sheet PDF
Afriso Data sheet gas detector GM 2.1
WATCHDOG-LINE alarm units Alarm units PDF
Afriso WATCHDOG-LINE alarm units

Alarm unit in a wall mounting housing with audible and visual alarms. GM features an alarm threshold and is equipped with a relay contact. If the threshold value is exceeded, the unit generates an alarm signal. The red LED lights up, the audible alarm goes off and the alarm relay switches. The audible alarm can be muted with the Acknowledge button. When the alarm condition no longer exists, you press the Acknowledge button again to clear the visual alarm (alarm memory). The alarm can only be cleared with the Acknowledge button if the cause of the alarm has been removed. If the concentration still exceeds the alarm threshold, pressing the Acknowledge button does not clear the alarm. The voltage-free relay contact allows you to switch additional external signalling equipment such as the event reporting system EMS, horns, lamps in the case of alarm or error conditions. GM is suitable for control panel mounting with a mounting frame. A DIN rail clip is available for fast and easy mounting of GM to standard rails (DIN rail/EH50022). A sealing kit (IP 54) is available for rough application conditions.

GM 2.1 can be combined with suitable gas sensors:

1 gas sensor (methane or propane/butane)

2 gas sensors, also for different gases (methane and/or propane/butane)

2 sensors
Connection cable
3-wire with wire cross section > 0.5 mm<sup>2</sup>
Distance control unit – sensor
Max. 150 m
Alarm threshold
1 permanently installed alarm threshold for alarm at approx. 20 % LEL with alarm memory
Visual indication
LED green:
Operating state
LED red:
Flashing for error, steady on for alarm
Audible alarm
Min. 70 dB(A), can be acknowledged
Switching output
Relay contact:
1 x voltage-free changeover contact
Contact rating:
AC 250 V, 2 A
Supply voltage
AC 230 V
Nominal power
15 VA
Operating temperature range
0/40 °C
-10/+60 °C
Wall mounting housing made of impact-resistant plastic (ABS)
W x H x D:
100 x 188 x 65 mm
Approx. 550 g
Degree of protection:
IP40 (EN 60529)