ENG
| Anti-masking | No |
|---|---|
| Kahesüsteemne | No |
| Sobib välipaigalduseks | No |
| Loomakindel | No |
The Optex SIP-HU is a heating unit suitable for all REDWALL SIP models, for use in low-temperature conditions. When the SIP-HU is used, the power supply of the SIP detector must be 22–26 V AC.