Flammable gas alarm sensor

Flammable gas alarm sensors detect gas concentrations through catalytic combustion or infrared absorption principles. When gas comes into contact with the sensor, it causes a change in the electrical signal, which triggers audible and visual alarms if it exceeds the set threshold. These sensors are used for safety monitoring in places such as chemical plants and gas stations, where there is a risk of gas leakage.
Selection
Confirm that the gas type to be tested matches the sensor's detection range during selection. Consider the temperature, humidity, and explosion-proof level requirements of the installation environment. Compare the response time and service life of the sensors. Check the product certification qualifications and calibration cycle. Determine the number of installation points based on the size of the detection area.

Terms

Standards

Instruments

Two-channel split design supports multi-point centralized control, with 4-20mA signal input and two-level alarm settings, microprocessor to ensure accurate monitoring, relay output can drive external equipment linkage, Operating temperature range -10~ 50 ℃.

$ 140.00

Using Semiconductor Sensor, Response Time T90 is less than 10 seconds, detecting a variety of combustible gases, range 0~ 50% LEL, with sound and light alarm and LED large screen display.

$ 141.00

High-precision Sensor is used to detect PM2.5 concentration, Response Time is instantaneous, Sensitivity can be adjusted to 5PPM, with sound and light alarm and automatic warm-up function, continuous work for 5 hours.

$ 157.00

Support 4-20mA signal input, compatible with two-wire and three-wire devices, providing up to 6 passive switching and sound and light alarm functions, operating temperature 0-40 ℃, suitable for a variety of Gas detection scenarios.

$ 183.00

Using semiconductor Sensor technology, the detection sensitivity can be adjusted to 50PPM methane, Response Time ≤ 1 second, Warm-Up Time is less than 110 seconds, support 9 hours of continuous work, with LED light alarm and low power indication function.

$ 99.00

Using Industrial Sensor, Response Time less than 30 seconds, accuracy +/- 3% FS, shell explosion-proof structure, 4-20mA standard signal output, can detect a variety of gas concentrations and have sound and light alarm function.

$ 267.00

Industrial Sensor, Response Time less than 30 seconds, accuracy +/- 3% FS, with explosion-proof structure, support 4-20mA and RS485 output, suitable for a variety of Gas detection.

$ 193.00

Semiconductor Sensor to detect halogen gas leaks of less than 0.5 oz/year, Response Time ≤ 1 second, Sensitivity adjustable, Portable design weighing 250g, up to 9 hours of operation.

$ 109.00

Support 8 channels of 4-20mA signal input, can store 20,000 alarm records, with two-level alarm settings and relay output, suitable for multi-point centralized control to prevent explosions and fire accidents.

$ 212.00

Can simultaneously detect four gases, Electrochemical sensor, Response Time instant, alarm sound up to 80 decibels, operation temperature range -10~ 50 ℃, portable design weighs only 360 grams.

$ 241.00

Electrochemical sensor, Response Time less than 30 seconds, Measurement range 0-100ppm, 4-20mA signal output and explosion-proof structure, suitable for gas monitoring in harsh industrial environments.

$ 267.00

Detect NH3 gas, range 0~ 100ppm, resolution 0.1ppm, Response Time T90 ≤ 120s, support sound and light alarm, Operating temperature -10~ 50 ℃, Working time for more than 60 hours, Portable design weighs only 170 grams.

$ 328.00

Explosion-proof structure design, Response Time is less than 30 seconds, with 4-20mA standard signal output, can detect a variety of gas concentrations and set high and low alarm points to ensure industrial environment safety monitoring.

$ 267.00

Electrochemical sensor is used to detect CO gas, with a range of 1~ 1000ppm, a resolution of 1ppm, and a Response Time of less than 60 seconds.

$ 104.00

Supports 4-20mA signal input, compatible with two-wire and three-wire devices, provides 6 passive switches and RS485 interfaces, with two-level alarm settings, operating temperature 0-40 ℃, suitable for gas safety detection.

$ 212.00

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