Hr202L Humidity Sensitive Resistor

Photoresistor is a resistor which made of semi-conductor material, and the conductance changes with luminance variation . The photoresistor can be manufactured with different figures and illuminated area based on this characteristic.Photoresistor is widely used in many industries, such as toys, lamps, camera, etc.

Performances and Features
Coated with epoxy
Good reliability
Small volume
High sensitivity
Fast response
Good spectrum characteristic

Typical Applications
1. Camera automatic photometry
2. Photoelectric control
3. Indoor ray control
4. Annunciator
5. Industrial control
6. Light control switch
7. Light control lamp
8. Electronic toy

Specification:
Type Max.Voltage Max.power Environment Spectrumpeak Lightresistance
(vdc) (mw) temp value (10Lux)(K)
GL3516 100 50 -30~+70 540 5-10
GL3526 100 50 -30~+70 540 10-20
GL3537-1 100 50 -30~+70 540 20-30
GL3537-2 100 50 -30~+70 540 30-50
GL3547-1 100 50 -30~+70 540 50-100
GL3547-2 100 50 -30~+70 540 100-200.

Optional Information:
- Payment : TT, Western Union
- Delivery : 3 working days
- Origin : China
- Minimum Order : 1000pcs.


100pcs/small box.

Humidity measuring range: 1%rh~ 99 %rh
Supply voltage vs: 10 v
Time constant (33 to 80 % rh, still air @ 63%) ta: 3.5 s
Deviation to typical response curve (10% to 90%) rh) :+/-2 %rh

Why I need it?

High relative humidity can cause significant, possibly irreparable damage to sensitive equipment, supplies, and products. To ensure dehydration measures work, humidity indicator cards measure the relative humidity (RH) inside sealed packages to allow immediate visual inspection of whether it has sustained unsafe humidity levels.

Why I need choose your product?

Existing humidity indicator cards found in the market are impregnated with a chemical called cobalt chloride In the dry state, cobalt chloride is blue in color. After absorbing moisture cobalt chloride changes to pink color. A recent amendment made to the European CEE directive 67-548 pertaining to the Classification, Packaging and Labeling of dangerous materials, has classified cobalt chloride as a carcinogenic material. Improper handling of items containing carcinogen may cause health hazards and environment hazards, thus, goods containing cobalt chloride will not meet EU standards.
Our new range of humidity indicator cards are carcinogen-free and meet EU standards and color change can be blue to pink, yellow to azure, blown to green.

Advantage:

Reversible
Competitive price
Bright color; high recognition
Meet ROHS, EU standards, SGS
A back film to prevent chemical to reverse to your products  
Using environmentally friendly ink and moisture-sensitive chemical

Usage :

1. The humidity indicator spots will change from blue (dry condition) to pink (humidity condition) as the relative humidity changes in the volume of air surrounding the indicator.

2.Relative humidity is indicated at the lavender color.
3.Indicator spots will change within eight hours of being exposed to a change in relative humidity.
4.The humidity indicator spots are reversible, and the pink spots will change back to blue when the volume of air is dried. Humidity indicator cards with pink or lavender spots can be returned to a blue color by placing indicators in a sealed container with 33 grams (1 unit) of desiccant for four hours. However, we do not recommend reversing or using cards that have been exposed to high humidity in excess of 60 percent.
5.The highest humidity indicator spot should be blue before being put into use.
6.The humidity indicator will be at its most accurate at a temperature of 23 degrees Celsius 72 degrees Fahrenheit.
7.Avoid contact with indicator spots. Wash any irritated areas with clean water.

2-wire DC powered Conventional Manual Call Point Push Button

The conventional manual call point designed for conventional fire alarm system for reporting fire or emergency
condition by its button latches. The call point has one 300 ohm resistor is used on the PCB board between
Zone+ and Zone- or one relay contact (NO, COM, NC ) output when the button is pressed.
Specifications:

Operating Voltage Range: 9ï½?32VDC Volts
Nominal Operating Resistance: 300Ω
Relay Contact Ratings: 2A/30VDC
Operating Humidity Range: 95% RH, Non-condensing
Operating Temperature Range: -10C to 50C (14F to 122F)
Dimensions: W89mm ,H93mm, D26mm
Base Dimensions: W87mm ,H87mm, D31.5mm
Weight: Net Weight 125g (with base)
Colour/Case Material: Red/ ABS

Detection gas
CO
Measurement Range
0~1000ppm
Max detecting concentration
2000ppm
Sensitivity
(3~12)nA/ppm
Resolution ratio
1ppm
Response time(T90)
30S
Load resistance(recommend)
1000
Repeatability
<3%output value
Stability(/month)
<10%
Output Linearity
linear
Zero drift
10ppm
Storage temperature
Storage Humidity
15%-90%RH
Pressure range(kPa)
90-110
Anticipated using life
5 years


inner: plastic foam
outside: carton

Items
Technical parameter
Detection Range
a1000ppm
Max detecting bound
2000ppm
Detecting life
5 years
Sensitivity
0.015
Resolution
0.5ppm
Temperature range
Pressure range
Normal atmosphere
Response time(T90)
<50S
Humidity range

Zero shift
10ppm
Stability(/Month)
<10%
Load resistance(commend)
200|
Reproducibility
<10%output value
Output linearity
Linearity


inner: plastic foam
outside: carton

Operating voltage: dc 12v
Static current: ¡ü20ma
Alarm current: ¡ü400ma
Wireless receiving frequency: 315mhz¡à0.5mhz
Wireless receiving sensitivity: 315mhz¡à0.5mhz
Anti-interference: 1v/m£¨frequency:20-1000 mhz£©
Gsm frequency: 900/1800mhz
Outer alarm siren volume: 110db
Working condition: temperature: -10¡æ¡«40¡æ
Humidity: ¡ü90%


Capacity for wireless device: 10pcs

The device is an Ultraviolet-only flame detector designed to detect fires and provide alarm outputs directly from the detector while maintaining false alarm immunity. It detects in the ultraviolet (UV) spectral range for optimized speed of response.
It is fast and capable to detecting the ultraviolet (UV) rays emitted by a burning substance and is used in high hazard applications such as petrochemical plants, munitions factories and other areas where flammable or explosive liquids or solids are handled or stored.
The flame sensor adopts an ultraviolet photosensitive tube, with qualities of highly sensitive, reliable, dust-resistant, corrosion proof and moisture-resistant, therefore is not sensitive in sunlight, dust, oil, tolerance of fume, and humidity. Set in a standard calibration to detect a flames at a distance of 25 meters, which flame created by 2Kg ethanol in a Container of Base 33cmX33cm, Height 5cm.