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Detection EquipmentGas Detectors

T40 Rattler Single-Gas Detector CO or H2S

T40 Rattler single-gas detector is a low-cost, maintenance-free single gas monitor designed to protect personnel from dangerous hydrogen sulfide or carbon monoxide gas exposure in the most extreme conditions. Despite its compact size, the T40 Rattler includes features usually found only in larger multi-gas monitors including a large, liquid crystal display (LCD), internal vibrating alarm, audible/visual alarms and simple push-button operation.

T40 Rattler single-gas detector monitor continuously displays ambient carbon monoxide or hydrogen sulfide readings in PPM and will alert the user when gas concentrations exceed the preset low or high levels. Added features include adjustable alarm setpoints, calibration gas values, and choice of text-only display selected by the user through a simple, push-button routine. The T40 Rattler also has a peak/hold feature to show the highest reading during a shift and includes a patented flip-cap calibration adapter for quick and simple calibration. The T40 Rattler operates for up to 1,500 hours on a single “AA” battery (included) and is covered by a two-year warranty from the date of manufacture.

  • Low cost CO or H2S monitoring
  • Peak/hold feature
  • 1,500 hour run time on 1 AA alkaline battery
  • Compact size and light weight
Part Number
T40 Rattler – Hydrogen Sulfide (alarms @ 10/20 ppm)
T40 Rattler – Carbon Monoxide (alarms @ 35/70 PPM)
T40 Nylon Carrying Case
Case: High visibility, impact-resistant composite with radio frequency interference (RFI) protection.
Dimensions: 3.375″ x 2.3″ x .75″ (86 mm x 58 mm x 19 mm)
Weight: 3.5 ounces (98 grams)
Sensors: CO, H 2 S – Electrochemical
Measuring Ranges:
Carbon Monoxide CO 0-999 ppm 1 ppm
Hydrogen Sulfide 2 S 0-500 ppm 1 ppm
Power Source(Run Time): Replaceable “AA” alkaline battery (approx. 1,500 hours typical)
Temperature Range: -4°F to 122°F (-20°C to 50°C) typical
Humidity Range: 15 to 95% RH typical
Alarms: Adjustable low and high alarm setpoints
Approvals: UL and cUL – Class I, Groups A, B, C, D
CSA – Class I, Groups A, B, C, D
CENELEC (ATEX) and Australia – EEx ia IIC T4