ST450EC O₂ Gas Detector (0-25 Vol.%)

Supply availability and delivery time require confirmation. A catalog reference does not imply stock.

Specifications

Manufacturer approvals / certifications	Refer to the original manufacturer documents; current certification validity is unverified.
Cable Gland	Standard Brass, optional SS (thread M20x1.5)
Dimensions	179 x 189 x 107 mm (HxWxD)
Display	Digital graphic display with backlight
Enclosure Gas Sensor	SS 316
Enclosure Material	Coated aluminum or SS
Gas Type	O₂
Ip Rating Condition	* IP ratings do not imply that the equipment will detect gas during and after exposure to those conditions.
Ingress Protection	IP 66 (Sensor IP 6x)*
Load Impedance	max. 160 Ω at 24 VDC
Manufacturer	Consilium Safety Netherlands B.V.
Measuring Range (o₂)	0-25 Vol.%
Model	ST450EC
Operating Temperature	-30 to +55 °C*
Order Code	1228000
Ordering Condition Footnotes	* Acc. EN 50104: -10 to +50ºC / 20 to 90 r.H. N.C **Acc. EN IEC 62990-1: -25 to +55 °C / 20 to 90 % r.H. N.C
Outputs	Analogue: 4-20 mA (<2.4 mA system failure, >20 mA overrange) Digital: RS485 Modbus RTU (half-duplex)
Power Supply	24-28 VDC (max. 40 mA)(120 mA remote)
Pressure Range	Toxic: Atmospheric ± 10%, Oxygen: 80 to 120 kPa
Relative Humidity (n.c.)	20-90%
Sensor Type	Electrochemical sensor (2 or 3 electrodes)
Signal Cable (standard)	2-wire shielded, 0.75 … 2.5 mm2 (excluding earth connection and Modbus)
Status Led Display	Green: OK, Red: Alarm, Yellow: SF (System Failure), Blue: User menu active
Weight	1.8 kg (Alu), 3.15 kg (SS)

System selection requires technical confirmation.

Refer to the manufacturer documents for model-specific accessories and installation requirements.

Original manufacturer data retained. Product enquiry and technical sourcing by MAXONE Marine. Last reviewed: 2026-11-02.