Sem225b 4-20mA RS485 Hight Quality Leaf Surface Humidity Sensor for Agricultural Science

• Customization: Available
• Product Name: Sem225b Leaf Wetness Sensor
• Accuracy: Humidity: ±3% Rh (5~95% Rh, 25°c),
• Model NO.: SEM225B
• Measuring Range: -40~+80°c, 0~100%Rh
• Probe Length: 70mm
• Signal Output: 4~20mA, RS485 Output (Modbus Protocol)
• Maximum Power Consumption: 1.2W, 0.4W
• Usage: Humidity Sensor
• Transport Package: Carton
• Specification: 18*18*17 0.5Kg
• Trademark: SENTEC
• Origin: China
• HS Code: 9033000090
• Production Capacity: 50000

Product Description

Product Description

 SEM225B Leaf wetness sensor is an important tool for observing and studying leaf wetness, preventing pests and diseases, and spraying sprinkler control. The accurate measurement of the moisture content of the leaf surface can be used to monitor the trace moisture or ice crystal residue. The shape of the sensor is simulated by the blade, which can simulate the characteristics of the leaf surface, so that it can reflflect the situation of the leaf surface more accurately. By measuring the variation of the dielectric constant of the upper surface of the blade, the mist, water vapor and ice can be measured.

 

Product Parameters

Range	Wetness: 0-100%, Temperature: -40-+80ºC
Accuracy	Wetness: ±5%RH (@25ºC), Temperature: ±1ºC(@25ºC)
Resolution	Wetness: 0.1%RH, Temperature: 0.01ºC
Power supply	5VDC,12-24VDC
Repeatability	<±3%FS
Temperature drift	≤0.2%FS/ºC
Operating temperature	-40ºC-+80ºC
Storage	-40-70ºC@20%-90%RH
Signal output	4~20mA,0~5V,RS485
Dimensions	65*13*145mm
Protection	IP68

 

Company Profile

SENTEC concentrates on the solutions for sensing technology.

For decades, SENTEC quality guaranteed products insist strictly manufactured in accordance with ISO, CE directive and fully RoHS compliant. On the basis of large-scaled production factories and international excellent devices, SENTEC inspections, tests and calibrations are well recognized throughout the world with experienced OEM service.
The advance solutions, superior quality, reliable performance, customer satisfaction and excel-
lent technical services are always our sole and eternal goal!

FAQ

Q: How long will you give me the reply?

A: we will contact you in 1 hours as soon as we can.
Q:Could I visit your factory?
A: Sincerely invite you to visit our factory.
Q: Do you provide samples ?
A: Yes,we have materials in stock to help you to get the samples as soon as we can.
Q: How about the quality of the managements ?
A: We have a complete quality control system , all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you
Q: What is your terms of payment ?
A: We could accept T/T, Paypal, WU ,Credit Assurance
Q: What is the warranty for your product ?
A: Warranty: 2 years, Lifetime maintenance