Gizmo Engineering DHK-7-3/4-NPT High Level Drum Alarm, NPT Plug

Features:

• 3/4" NPT Plug Mounting Type.
• Without feeding tube.
• Float switch is protected inside a rigid pipe so it can get knocked around without worry.
• Adjustable depth with no tools required. Just loosen the thumb knob and slide the pipe to set the desired depth.
• Uninterruptible battery power works through power failures, can't come unplugged.
• Polypropylene is the standard material because it is suitable for almost all chemicals, it has very good toughness, and will tolerate temperatures up to 200°F.
• Built for tough industrial environments. Waterproof, acid -proof, PVC housing, with Lexan LED lens, stainless steel buzzer diaphragm.
• 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.
• Transfer to a drum is easy: no need to fiddle around with tube connections.
• A functional check is simple – just lift the Drum Alarm out of the drum.
• No wetted metal parts.

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

Our overfill alarms for drums lets you pump liquids into chemical drums and containers without having to check the level. When the level gets above the float switch, a loud buzzer sounds and LED flashes to let you know. Easy to install the high level Drum Alarm: once the battery is installed, simply drop it into a drum and you're ready to go! No wiring. Lets you forget about overfilling for good. These liquid level alarms can be adapted to any drum.