Original Figaro TGS6810 TGS6812 TGS6814 Catalytic Combustion Combustible Gas Sensor

Original Figaro TGS6810 TGS6812 TGS6814 Catalytic Combustion Combustible Gas Sensor

TGS6810
Core features
1. Output linearity: concentration and output voltage ΔV are basically linear, simple calibration (0~100% LEL full scale) Figaro technology…
2. Low alcohol cross-interference: The cap contains built-in adsorption filter material, which is less sensitive to ethanol compared to traditional catalytic beads, offering clear advantages in kitchen scenarios
3. Resistant to silicon poisoning: Better tolerance to silicone oil and silicone vapor, suitable for home decoration environments
4. T90 response ≤ 15s, lifespan: expected to be about 10 years in conventional indoor environments
5. RoHS compliant, small-volume encapsulated Figaro technology…

Key electrical parameters
Heating voltage: 3.0±0.1V AC/DC (must be strictly controlled)
Typical heating current: 175mA
Typical power consumption: 525mW
Zero offset: -15 ~ +55 mV
Sensitivity (standard condition 20°C, 65% RH)
Methane 5000ppm: ΔV = 10~18 mV
Isobutane 1800ppm:ΔV = 5~11 mV
Working environment: -10 ~ +50°C, ≤ 95% RH, condensation prohibited
Storage: -10 ~ +60°C, ≤ 95% RH
Diameter φ0.496 in × Height 0.366 in, Weight: 0.0459 oz
Preheat: At least 10 minutes before testing; New devices are recommended to age for more than 2 weeks to achieve stable zero point Figaro technical research…

Typical applications
Residential natural gas/LPG gas leak alarm
Portable combustible gas detector (methane, liquefied gas)

Important usage reminders

1. The catalytic combustion sensor cannot operate in oxygen-deficient environments; There is a risk of burnout under high concentrations of combustible gases
2. Power supply voltage regulation is crucial; a large 3V deviation will cause drift and damage
3. Although it resists alcohol, high concentrations of solvents, lead, and sulfur vapors can still cause irreversible poisoning
4. Supporting circuit: Standard Wheatstone bridge, differential amplification acquisition ΔVout, requires temperature compensation

TGS6812
Core features

1. Measurable: Hydrogen H₂ + Methane CH₄ + Isobutane (LPG), range 0~100% LEL Figaro Technology…
2. Linear output and simple calibration
3. Built-in adsorption filter layer with low alcohol cross-interference; Resistant to silicone oil and SO₂ poisoning, more durable than traditional catalytic beads plan-i.ru
4. T90 response time: ≤15s; Typical indoor expected lifespan is about 10 years Figaro Research…
5. RoHS compliance
6. Fault safety design: After aging, signal tendency increases, preventing missed alarms (unlike traditional catalytic sensors). Figaro Technology…

Electrical parameters (standard condition: 20°C, 65% RH)
Heating voltage: 3.0±0.1V AC/DC (voltage stabilization required)
Typical heating current: 175mA
Typical power consumption: 525mW
Zero offset: -15 ~ +55 mV
Sensitivity ΔVout:
H₂ @4000ppm：8~16 mV
CH₄ @5000ppm：10~18 mV
Isobutane @1800ppm: 5~11 mV Figaro Tech…
Operating temperature: -10 ~ +70°C, ≤95% RH (non-condensing)
Storage: -10 ~ +60°C, ≤ 95% RH
Diameter φ0.472 in × Height 0.512 in, Weight: 0.0529 oz
Preheat: 10 minutes ≥ before testing; New devices are recommended to age for 2 weeks to maintain stable zero-point Figaro techniques

Typical applications
Hydrogen leak detector and fuel cell matching leak detection
Industrial combustible gas alarm (simultaneous measurement of H₂, natural gas, liquefied gas)
Commercial gas detector by Figaro Technology…

Important precautions
1. Catalytic combustion principle, cannot operate normally in oxygen-deficient environments; Ultra-high concentrations of combustible gases pose a risk of burning
2. 3V power supply accuracy is critical; voltage fluctuations directly cause drift and damage components
3. High concentrations of sulfur, lead, and heavy metal vapors can still cause irreversible poisoning
4. Standard Wheatstone Bridge differential acquisition ΔV requires temperature compensation
5. Pin definition (bottom view): 1-4 Compensation beads; 2-3 Detection beads FIGARO Eng

TGS6814
Core features
1. Linear output, range 0~100% LEL
2. Resistance to siloxane (silicone oil) poisoning is better than TGS6810, suitable for commercial kitchens and environments with sealant/silicone
3. Optimized filter layer, lower cross-sensitivity to alcohol and organic solvent vapors, resulting in fewer false alarms
4. RoHS compliance; T90 ≤15s
5. Alerts for commercial gas (catering and commercial natural gas), not household use

Electrical parameters (same platform series, same power supply as 6810/6812)
Heating voltage: **3.0±0.1V AC/DC (voltage stabilization required)
Typical heating current: 175mA
Typical power consumption: 525mW
Zero offset: -15 ~ +55 mV
Sensitivity (20°C, 65% RH)
Methane 5000ppm: ΔV = 10~18 mV
Isobutane 1800ppm:ΔV = 5~11 mV
Working environment: -10 ~ +50°C, ≤ 95% RH, condensation prohibited
Storage: -10 ~ +60°C, ≤ 95% RH
Diameter φ0.472 in × Height 0.512 in, Weight: 0.0529 oz
Preheat: ≥ 10min; New machine aging for 2 weeks stabilizes to zero

Typical applications
Commercial catering natural gas/LPG leak alarm
Commercial fixed combustible gas detectors
Gas detection in places with silicone, sealant, and silicone oil

Important reminder
1. Catalytic combustion, unable to operate properly in oxygen-deficient environments; Ultra-high concentrations of combustible gases can burn out components
2. Does not have hydrogen detection capability and cannot be used for leak detection of H₂ (H₂ selection TGS6812 required)
3. Sulfur, lead, and heavy metal vapors can still cause irreversible poisoning
4. Supporting standard Wheatstone bridge differential acquisition ΔV, suggesting additional temperature drift compensation