SPECIFICATIONS

Alarm: buzzer alert

Application Scenarios: Civilian Grade 

Battery Capacity: 1000MAH/3.7V

Battery Included: no

Brand Name: PROTMEX

Charge couple: TYPE-C

Choice: yes

DIY Supplies: Electrical

Display: LCD display

Function: temperature,humidity

High-concerned chemical: none

Is Smart Device: no

Light Indication Alert: yes

Measurement Range: 400~5000ppm

Model Number: PTH-21C

Origin: Mainland China

PCBincluded: Yes

Power supply: charging

Semi-finishedproduct: No

With LCD Screen Or Not: Yes

humidity range: 10%~90%

semi_Choice: yes

temperature range: -10℃~50℃

Portable NDIR CO2 Monitor

The PTH-21C measures CO2, temperature and humidity on one clear display. Compact, rechargeable and easy to carry for home, office, car, RV and travel.

CE Certified High-Precision Electrochemical Sensor – Professional Accuracy

Package Includes

PTH-21C Monitor ×1
USB-C Cable ×1
Wrist Strap ×1
User Manual ×1

Important Notice

This product detects carbon dioxide (CO2) only. It does not detect carbon monoxide (CO).

Important Safety Notice

This product is designed for portable environmental monitoring. It should not replace a certified residential carbon monoxide alarm or other legally required safety equipment.

If a high CO reading or alert occurs, move to fresh air immediately, ventilate the area when safe to do so and seek professional assistance.

About shipment

1. AliExpress Standard WORLDWIDE SHIPPING. (Except some countries and APO/FPO)

2. Orders processed timely after the payment verification.

3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.

4. The images shown are not the actual item and are for your reference only.

5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.

6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!

7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.

Return&Refund

1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half.

2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your po#.

3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to have a replacement.

4. We will bear all the shipping cost if the product(s) is (are) not as advertised.

About Guarantee

1. 12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.

2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on aliexpress!

About Feedback

We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them!