This is the Waterproof LM35DZ Digital Thermal Probe, a precision temperature sensor built to withstand moisture and deliver reliable, linear readings. Encased in a rugged stainless-steel or PVC housing, this probe is perfect for applications where water resistance and accuracy matter — from weather monitoring to garden automation, and everything in between.

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Why You’ll Love This Probe

• Waterproof Design: Sealed in stainless steel or PVC, this probe resists moisture, making it suitable for wet or outdoor environments.

• Linear Analog Output: Provides a clean analog voltage that scales directly with temperature — 10 mV per °C makes conversion extremely easy.

• Wide Voltage Range: Operates from around 4 V up to 30 V, offering flexibility with different power sources.

• Good Accuracy: Typical accuracy is about ±0.5 °C within its ideal range.

• Low Power Consumption: Draws very little current (under ~60 µA), minimizing self-heating and conserving energy in battery-powered setups.

• Reliable for Remote Monitoring: Low output impedance and linear scaling make interfacing with microcontrollers or ADCs simple and stable.

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Ideal For…

• Weather stations

• Aquarium or garden temperature monitoring

• Water-resistant data loggers

• Electronics in humid or wet enclosures

• DIY heating/cooling control projects

• Outdoor and remote embedded systems

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Key Specifications

• Sensor Chip: LM35DZ

• Output Type: Analog (10 mV/°C)

• Temperature Range: 0 °C to 100 °C (for this waterproof variant)

• Operating Voltage: ~4 V to ~30 V

• Accuracy: ±0.5 °C typical

• Current Consumption: < 60 µA

• Housing Material: Stainless steel or PVC waterproof casing

• Wiring: Three-wire interface (VCC, Signal, GND)

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Practical Tips for Best Use

• Use a high-resolution ADC or microcontroller analog pin for better reading precision.

• With long cables, add a small RC filter (100 Ω + 1 µF) on the output to reduce noise.

• Check wire colors carefully — commonly red = Power, black = Ground, yellow = Signal.

• Use a stable, regulated power supply for consistent measurements.

• Ensure the probe tip has good thermal contact with the environment.

• Perform a simple calibration using a known temperature reference for optimal accuracy.

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Final Thought

The Waterproof LM35DZ Thermal Probe is a dependable, rugged, and accurate temperature sensor ideal for projects requiring reliable readings in wet, humid, or outdoor conditions. Its simple analog output, durable build, and low-power design make it a favorite among hobbyists, engineers, and automation designers.