| Mfr | ModelNo | AvailabilityNotes | Description | 
					
						| Enviroguard | HYD-D | By Authorized Distributor | Hydrogen Gas Monitor - Deluxe | 
					
						| Enviroguard | HYD-E | By Authorized Distributor | Hydrogen Gas Monitor - Portable | 
					
						| Enviroguard | HYD-M | By Authorized Distributor | Hydrogen Gas Monitor - 4 Gas Portable | 
					
						| Enviroguard | RE04253 (do not use, see C&D item) | By Authorized Distributor | Hydrogen Monitor, Standard w/sensor (When Ordering, 
						specify Monitor voltage; 24VDC, 48VDC or 110VAC) | 
					
						| Enviroguard | RE04173 (do not use, see C&D item) | By Authorized Distributor | Hydrogen Monitor, Delux - no sensor (When Ordering, 
						specify Monitor voltage; 24VDC, 48VDC or 110VAC) | 
					
						| Enviroguard | RE04254  (do not 
						use, see C&D item) | By Authorized Distributor | Sensor, Delux Hydrogen Monitor | 
					
						| Enviroguard | HYD-2C | By Authorized Distributor | 2-Channel Wall Mount Controller | 
					
						| Enviroguard | HYD-2C-1 | By Authorized Distributor | Bundled 2-Channel Controller with (1) H2 Specific Sensor | 
					
						| Enviroguard | HYD-2C-1LEL | By Authorized Distributor | Bundled 2-Channel Controller with (1) Direct Connect LEL 
						Sen | 
					
						| Enviroguard | HYD-2C-2 | By Authorized Distributor | Bundled 2-Channel Controller plus (2) H2 Specific 
						Sensors | 
					
						| Enviroguard | HYD-2C-2LEL | By Authorized Distributor | Bundled 2-Channel Controller plus (2) Direct Connect LEL 
						Sen | 
					
						| Enviroguard | HYD-2C-Cal | By Authorized Distributor | Cal Kit for HYD-2C, HYD-8C & HYD-H2 and LEL Sensors | 
					
						| Enviroguard | HYD-4C | By Authorized Distributor | 4-Channel Controller | 
					
						| Enviroguard | HYD-4C-4 | By Authorized Distributor | Bundled 4-Channel Controller plus (4) H2 Specific 
						Sensors | 
					
						| Enviroguard | HYD-4C-4LEL | By Authorized Distributor | Bundled 4-Channel Controller plus (4) LEL Sensors | 
					
						| Enviroguard | HYD-8C | By Authorized Distributor | 8-Channel Wall Mount Controller | 
					
						| Enviroguard | HYD-8C-4 | By Authorized Distributor | Bundled 8-Channel Controller with (4) H2 Specific Sensor | 
					
						| Enviroguard | HYD-H2 Sensor | By Authorized Distributor | Explosion Proof H2 Specific Gas Sensor/Transmitter | 
					
						| Enviroguard | HYD-JBOX | By Authorized Distributor | Junction Box for mounting sensor from transmitter | 
					
						| Enviroguard | HYD-LEL Sensor | By Authorized Distributor | Explosion Proof LEL Gas Sensor/Transmitter | 
					
						| Enviroguard | HYD-S | By Authorized Distributor | Standard Hydrogen Gas Monitor - Economy Non-UL | 
					
						| Enviroguard | HYD-SA | By Authorized Distributor | Stand Alone Explosion Proof H2 Specific Transmitter | 
					
						| Enviroguard | HYD-SA-LEL | By Authorized Distributor | Stand Alone Explosion Proof LEL Transmitter | 
					
						| Enviroguard | HYD-S-Calibration | By Authorized Distributor | Calibration Kit | 
					
						| Enviroguard | HYD-Sensor | By Authorized Distributor | LEL Sensor | 
					
						| Enviroguard | Labels | By Authorized Distributor | Labels for Monitors (estimate cost) |