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Portable Gas Monitor LT-GM403

Portable Gas Monitor LT-GM403

Product Code: LT-GM403

Portable Gas Monitor LT-GM403 is engineered with explosion-proof, anti-static, and anti-EMI protection for reliable operation in hazardous environments. It supports 4–20 mA signal and voltage output with dual relay switches for easy system integration. Certified to national standards with CPA and explosion-proof approvals, it ensures stable performance. Ideal for chemical plants, oil and gas facilities, refineries, and industrial safety monitoring.

Key Features
Explosion-proof & anti-EMI
CPA certified, national standard
4–20 mA & RS485 output
Optional sound & light alarm
Wired, LAN, Internet, or wireless
433 MHz long-distance wireless
$ 1,801.00

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Technical Data

Product Specifications

Detected Gas
C₈H₁₀
Detection Range
0–10 ppm
Resolution
0.01 ppm
Detection Principle
Electrochemical sensor
Detection Accuracy
≤ ±2% F.S
Linearity
≤ ±2%
Repeatability
≤ ±2%
Uncertainty
≤ ±2%
Response Time
T90 ≤ 20 s
Recovery Time
≤ 30 s
Signal Output
RS485 (RTU), 4–20 mA (three/four-wire); Optional: 0–20 mA, 1–5 V, 0–5 V, 0–10 V, wireless transmission, network transmission, SMS alarm
Display
1.7-inch high-definition color screen
Operating Voltage
12–36 V DC (Standard: 24 V DC, ≥1 A)
Power Reference
24 V, 2.1 A power supply supports up to 40 toxic gas detectors
Operating Mode
Fixed installation, online detection, diffusion, pipeline, flow, or pump-suction measurement
Installation Method
Wall-mounted or pipeline type
Alarm Method
1-channel default, optional 2 passive contact outputs; three-level alarm with adjustable points; optional sound and light alarm
Operating Temperature
-40°C to +70°C
Operating Humidity
≤10–95% RH
Protection Level
IP65
Explosion-proof Grade
Exd II CT6 Gb
Dimensions
238 × 152 × 90 mm (without alarm); 238 × 210 × 90 mm (with alarm)
Weight
1.38 kg (without alarm); 1.6 kg (with alarm)
Performance

Features & Benefits

  • Explosion-proof & anti-EMI
  • CPA certified, national standard
  • 4–20 mA & RS485 output
  • Optional sound & light alarm
  • Wired, LAN, Internet, or wireless
  • 433 MHz long-distance wireless
Laboratory Uses

Applications

It is a portable gas monitor with explosion-proof design, suitable for detecting toxic and flammable gases. It is widely used in chemical plants, oil and gas facilities, refineries, power stations, and other industrial safety monitoring environments.

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