Gizmo Engineering DLP-55G-1/2 Low Level Drum Alarm, 1/2" Fit Size

Features:

• Warns of empty drums with a bright flashing LED and a loud beeper when liquid level is low.
• Always on duty because the liquid suction tube is permanently attached to the alarm unit.
• It can go anywhere because its battery powered. No need for power outlets.
• Uninterruptible battery power lasts for years. Lithium battery included.
• Loud warbling tone cuts through the loudest industrial noise.
• Rugged. Built for rough, wet and corrosive environments.
• Protects your pumps from debris with an intake screen.
• Adjustable depth using a thumbscrew.
• No metal parts to corrode.
• Removable screen built into the suction pipe guards your pumps from debris or crystals.
• Slip-on cap for fast drum transfers.
• With Flowmeter.
• 2" NPS Mounting Type.
• Polypropylene / PTFE Material.
• For 55 Gallon Drum.

Chemical Resistance:

• Aqueous Ammonia (conc.)
• Aqueous solutions to 100°C
• Hydrochloric acid (conc.)
• Nitric acid (30%)
• Oils (including waste oils)
• Potassium carbonate (40%)
• Sodium hydroxide (50%)
• Sulfuric acid 70%
• Sodium Hypochlorite

The following are not compatible with the acrylic flowmeter:

• Sulfuric Acid 90%+
• Lactic acid
• Peracetic acid (conc.)
• Ketones

An attached suction pipe can't be separated from the float switch, so the level alarm is always on duty. The rigid suction pipe ensure that your pump is always drawing liquid from below the alarm point. At the same time, adjusting the depth to the bottom of a drum makes sure the maximum all the chemical is extracted from your drums and the float switch leaves only a couple of millimeters of residue.