• daadinstruments@gmail.com
  • +91 9810780146
  • +91 9958700156
  • daadinstruments@gmail.com
  • +91 9810780146

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WEATHERPROOF HEAD PRESSURE & LOW PRESSURE SWITCH MODEL
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WEATHERPROOF HEAD PRESSURE & LOW PRESSURE SWITCH MODEL

Parameter Specification
Features Fixed / Field Adjustable (External) / Differential Adjustment – External / Internal
Accuracy ± 1% / CL 1
Repeatability ±0.5% / CL 0.5, On Raising / On Falling
Mounting Bottom / Back Panel / 2″ Pipe Mounting Bracket
Enclosure Die Cast Aluminium – Weather Proof – IP68
Wetted Parts Bottom Body, Diaphragm
MOC of Wetted Parts SS316 / Monel / Inconel / PTFE
Process Connection 1/4″ BSP (F), 3/8″, 1/2″ BSP / NPT
Options Mounting Bracket with bolt – Steel Plated / 2″ Pipe Mounting Bracket
Max. Process Temp. 150°C
Ambient Temp. -20 .. 65°C
Switch Type & Rating 1SPDT, 2SPDT, 5A / 250 VAC / 0.2A 24VDC
Micro Switch Standard Micro Switch with silver Contact. Low/High Dead Band, Hermetically/Environment Sealed, Gold Contact
Ranges 10 mbar … 25 bar, -1 … 400 mbar
Differential 2 mbar … 6 Bar
Accessories Mounting Bracket with bolt – Steel Plated / 2″ Pipe Mounting Bracket
Cable Entry PG13.5 (standard)
Options 3/4″ ET / 1/2″ NPT / DIN Connector / 4-pin / 7-pin connectors, Single / Double Compression Gland – Weather Proof – Brass / SS

Description

The Model WHP-LP200 Weatherproof Head and Low Pressure Switch is engineered for dependable pressure monitoring in outdoor and harsh environments. Featuring a rugged, weatherproof enclosure with IP65/IP67 protection, this switch is ideal for HVAC, refrigeration, and industrial applications where exposure to dust, moisture, and extreme weather is common. It accurately senses both high head pressures and low suction pressures, ensuring optimal system performance and safety.

Constructed with corrosion-resistant materials and robust internal components, the WHP-LP200 supports a wide pressure range and offers adjustable set points for precise control. The switch includes versatile electrical contacts (SPDT or DPDT) and standard threaded process connections (NPT/BSP) for easy installation. Designed for long-lasting reliability, it meets industry standards for weather resistance and electrical safety, making it a trusted choice for challenging operational conditions.

WEATHERPROOF HEAD PRESSURE & LOW PRESSURE SWITCH MODEL

WEATHERPROOF HEAD PRESSURE & LOW PRESSURE SWITCH MODEL

What People Say About Our Product


Customers consistently praise our temperature and pressure gauges for their accuracy, durability, and ease of installation. From HVAC professionals to industrial users, many highlight the clear readings and reliable performance under tough conditions. Whether for home systems or heavy-duty applications, our gauges are trusted for getting the job done right.

A temperature and pressure (T&P) gauge is used to monitor both the temperature and pressure levels within systems like boilers, water heaters, HVAC units, and other pressurized equipment. It helps ensure the system is operating safely and efficiently.

Installation typically involves threading the gauge into a designated port on the system (usually a 1/4" or 1/2" NPT fitting). Always ensure the system is depressurized before installation and use thread sealant to prevent leaks. Refer to the product manual for specific instructions.

For best performance, it’s recommended to check calibration annually, especially in industrial or high-usage environments. Replace the gauge if you notice inaccurate readings, a stuck needle, or visible damage to the dial or housing.

Our Product Review

This pressure gauge is spot-on accurate and durable. I installed it on a boiler system for a commercial client, and it’s been holding up perfectly under high pressure and heat. The stainless steel casing is rugged, and the glycerin fill really helps reduce needle vibration. Definitely a professional-grade product worth the price

Industrial Pressure Gauge

Very reliable temperature readings and the digital display is easy to read even in low light. I use it for monitoring HVAC systems and it has made diagnostics much quicker. The only downside is that the battery compartment is a bit tricky to open, but overall, it’s a solid product.

Digital Temperature Gauge

I’ve been using this temperature and pressure gauge for a few months on my residential boiler system, and it’s performed consistently well. The readings are accurate, and the dual-scale display is easy to interpret. It was easy to install and fit perfectly into the existing port. Build quality feels solid with a brass connection and clear lens. So far, it's been reliable under both high-temp and high-pressure conditions. I’ll be purchasing more for future installs.

Temperature & Pressure Gauge

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