Temperature and humidity sensor protective cover / waterproof SHT10 SHT11 SHT20 SHT21 SHT15 SHT75 shell | Электронные компоненты

Temperature and humidity sensor protective cover / waterproof SHT10 SHT11 SHT20 SHT21 SHT15 SHT75 shell | Электронные компоненты

First, the product profile     This product model: PEG-70, fully waterproof, length 70mm, PE filter diameter 6mm, diameter 15mm (connecting nut part), this model includes waterproof head, connecting nut, waterproof tailstock three parts. Waterproof head material for the PE sintering, the link nut is brass, tailstock is nylon lock. The use of temperature range: -50 ~ +120 degrees Celsius.   Second, the application of sensors     Can be equipped with HTU21 SHT10 SHT11 SHT20 SHT21 SHT15 SHT75 and other sensors. Applicable to the soil, outdoor rain, high humidity agricultural greenhouses and other environments.     Third, frequently asked questions     Question 1: This jacket is dustproof and waterproof?     A: The product ventilation aperture is much smaller than the droplet or dust particle diameter, can be dustproof and waterproof.   When the pressure increases to 10MPa, the general particle diameter can reach 0.05 ~ 10mm, the diameter of the water droplet can reach 1 ~ 2mm, the pressure of 1 ~ 3MPa can reach 0.2 ~ 0.5mm, 0.2 mm. This product breathable aperture of 10 ~ 60um.     Frequently Asked Questions II: How to understand this jacket waterproof but can measure the function of humidity?     A: This jacket is a PE material, characterized by waterproof breathable, water molecules can enter the sheath, the surface tension of water droplets can not enter the sheath, and therefore can measure the humidity while preventing water droplets infiltration.     Frequently Asked Questions 3: Why is this jacket placed in high humidity occasions, there will still be water droplets inside the situation?     Answer: In the humidity of the occasion, when the ambient temperature decreases within the sheath of water molecules will condense to form water, the physical phenomenon known as liquefaction, the principle of condensation with the warm season similar to the phenomenon of the early morning. When the water droplets if attached to the circuit board, it may make the circuit board electrophoresis and damage, so the company on the circuit board potting, and the use of special potting material, the measured value without any interference.