1) Power：110VAC/220VAC/230VAC, 9V-20VDC
2) Alarm density: carbon monoxide：150ppm+-50%
3) Circuit for normally closed rely contacts
4) Circuit for normally open rely contacts
5) Operating frequency: 433 mhz/315mhz (optional)
6) Size: 115mm*70mm*40mm
7) Weight: 228g/pcs
8) Package size: 58. 5cmx28. 5cmx53. 3cm
9) Quantity/box: 100pcs
10) Ctnwei(kg): 28kg
11) Q`cty/20`ft: 35200pcs