This professional 4 in 1 gas detector is designed for detecting CO, H₂S, O₂ and LEL gas. It can continuously monitor the CO, H₂S, O₂ and LEL gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound, vibration and flash. High precision portable CO, H₂S, O₂ and LEL gas tester with compact size and light weight, very easy to carry and operate.

Features:
Detect 4 kinds of gas: carbon monoxide(CO), hydrogen sulfide(H₂S), oxygen(O₂) and combustible gas(LEL).
Continuously monitor the CO, H₂S, O₂ and LEL gas concentration in the surrounding environment with professional and accurate measurement.
Sound/vibration/flash triple alarms works when one of the CO, H₂S, O₂ & LEL gas concentration reaches the level of the alarm.
Large HD LCD display with backlight for easy reading.
Can connect to a sampling pump to operate in closed place.
Can be widely used in shipping, mining, oil exploitation, chemical, gas pipeline, tunnel construction, coal, metallurgy, paper, fire, municipal, textile and other industries.

Specifications:
Brand Name: SMART SENSOR
Color: Blue
Material: ABS
Screen Size: 47 * 38mm / 1.9 * 1.5in
Sensor: Electrochemical Principle
Charging Port: Micro USB DC 5V
Sampling Pump Power Supply: DC 3V power supply
Operation Current: 230mA
Short Circuit Current: ≤3A
Operation Voltage: 3.7V
Maximum Open Circuit Voltage: ≤4.2V
Battery Type: BL-9C
Display Type: Segment type LCD
Operation Humidity: 15%~95%RH
Operation Temperature: -10℃~50℃
Storage Temperature: 0~40℃
Battery Working Runtime: 6 hours (no alarm)
Detection Gas: Carbon Monoxide(CO, Hydrogen Sulfide(H₂S), Oxygen(O₂), Combustible Gas(LEL)
Measurement Range: CO: 0~999ppm, H₂S: 0~500ppm, O₂: 0~30%VOL, LEL: 0~100%LEL
Resolution: CO: 1ppm, H₂S: 1ppm, O₂: 0.1%VOL, LEL: 1%LEL
Alarm Value Setting: Upper limit and lower limit alarm value can be set
Alarm Alert: Sound/vibration/flash triple alarms
TWA Alarm Value Setting: Time-weighted value, meaning the accumulated value measured within 8 hours
STEL Alarm Value Setting: Short term exposure limit
Item Size: 140 * 75 * 35mm / 5.51 * 2.95 * 1.37in
Item Weight: 270g / 9.52oz
Package Weight: 430g / 15.17oz
Package Size: 24.5 * 9 * 6cm / 9.64 * 3.54 * 2.36in

Package List:
1 * 4 in 1 Gas Detector
1 * USB Cable
2 * Screws
1 * Gas Calibration Hood
1 * Storage Bag
1 * User Manual (English)

Many Questions about Dropshipping Services Are As Follows:

1.How many orders can you handle per day?
we are a large company in Shenzhen,China,with a large warehouse that can handle large orders everyday.We send out countless parcels everyday.We can guarantee the order you request.

2.How fast can you process orders?
We will arrange shipment as soon as possible after you pay the order.Priority delivery for dropshipping order

3.Could you ship order without any receipts,invoices and promotional offer inside the package?
Absolutely!No invoices,receipts,promotional offer if you leave notes on the order(if you want,we can provide.)

4.If you need other products?
We can provide most products you need as much as possible1

If you have any other questions,please feel free to contact us.
We are very grateful to cooperate with you.

5.We can support CSV/Excel File Dropshipping.

6.There is no limited stock to fulfill the orders on a daily basis