Product Description

Electronic Temperature Control Components DIY Kit Sound Light Alarm Suite

Features:
Simple circuit are included; easy soldering; these items are very suitable for the teenagers to learn circuit and soldering.
These items are small size, high sensitivity.
It uses the sound and light to set up the alarm, and it can be used to detect the temperature.
In conclusion, it is perfectly practical.

Specification:
Working voltage: DC 3~5V.
PCB Size: 21*30mm
Color:As pictures shown

Introduction:
The circuit of this suite is very simple, it is consisted of three triodes(two S09014 and one S9015), one active buzzer, one LED and one thermistor.
Adjust the potentiometer to set the temperature threshold value, use two S9014 triode to drive the buzzer,
When the temperature is higher than the threshold value, the LED lights and the buzzer alarms and vice versa.

Package Included:1pc Electronic Temperature Control DIY Kit

1. All our stock is located in China and all shipments will originate here. Your purchase will be shipped via standard airmail two or three days after payment clears except those custom products.
2. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility.Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.
3. Shipping to USA is via Speedpak or EMS or UPS or Fedex. Other shipments will be shipped from china by Speedpak or EMS or DHL or Fedex. A tracking No. is provided once the item is dispatched. Delivery normally takes 7-20 business days if it can go smoothly through customs. 
4. We do not ship on holidays or weekends
5. You need to contact your local post office or customs department in the following cases:
Delivery mistake by the post office man
Delayed shipping due to customs detention
Delivery failure caused by wrong address

We only accept PayPal payment.

1. If you receive any damaged or defective items, we will exchange it as quickly as possible.
2. You must contact us within 7 days of delivery of the product to notify us of any defects.
3. You need to send a picture to prove the problems by using ebay's attaching files button
4. Items must be in original box and kept in good condition.
5. Buyer is responsible for return shipping cost if there isn't any problem with the product. No matter the item is free shipping or not, we pay money for the  shipping.You need to cover the actual shipping cost provided by us.

1.Do not hesitate to contact us anytime before and after your purchase, we are committed to your 100% customer satisfaction.
2.I am here and ready to assist you with any questions or concerns you might have before or after the purchase.
3.My goal is to make sure you are a happy customer and pleasant shopping with us.

If you are satisfied with the purchase and our total service, your comment is very important in our business success. Please take a minute to leave us a positive feedback with an overall Detailed Selling Rating (DSR) of 5.
Our eBay account setup auto feedback, so eBay system gives you automatically Positive feedback back after your positive feedback left.
If you plan to give us a neutral/negative feedback Or open ebay/paypal case, please write to us immediately so that we can do our best to resolve your problem.

About Us

1. All our stock is located in China and all shipments will originate here. Your purchase will be shipped via standard airmail two or three days after payment clears except those custom products.
2. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility.Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.
3. Shipping to USA is via Speedpak or EMS or UPS or Fedex. Other shipments will be shipped from china by Speedpak or EMS or DHL or Fedex. A tracking No. is provided once the item is dispatched. Delivery normally takes 7-20 business days if it can go smoothly through customs. 
4. We do not ship on holidays or weekends
5. You need to contact your local post office or customs department in the following cases:
Delivery mistake by the post office man
Delayed shipping due to customs detention
Delivery failure caused by wrong address

Payment

We only accept PayPal payment.

Returns

1. If you receive any damaged or defective items, we will exchange it as quickly as possible.
2. You must contact us within 7 days of delivery of the product to notify us of any defects.
3. You need to send a picture to prove the problems by using ebay's attaching files button
4. Items must be in original box and kept in good condition.
5. Buyer is responsible for return shipping cost if there isn't any problem with the product. No matter the item is free shipping or not, we pay money for the  shipping.You need to cover the actual shipping cost provided by us.

Contact Us

1.Do not hesitate to contact us anytime before and after your purchase, we are committed to your 100% customer satisfaction.
2.I am here and ready to assist you with any questions or concerns you might have before or after the purchase.
3.My goal is to make sure you are a happy customer and pleasant shopping with us.

Feedback

If you are satisfied with the purchase and our total service, your comment is very important in our business success. Please take a minute to leave us a positive feedback with an overall Detailed Selling Rating (DSR) of 5.
Our eBay account setup auto feedback, so eBay system gives you automatically Positive feedback back after your positive feedback left.
If you plan to give us a neutral/negative feedback Or open ebay/paypal case, please write to us immediately so that we can do our best to resolve your problem.

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