The CH-20HR is a microprocessor-controlled radio receiver with 20 output channels, designed for use with a large number of hopping code transmitters or detectors in wireless alarm and access control systems. It features the KEELOQ® code hopping transmitter verification system, providing the highest level of security. The receiver offers 20 galvanically separated NC/NO relay outputs, each with front panel LED indication. Output channels can be programmed for momentary (pulse) or latched (on/off) operation. Additional features include transmitter low battery warning, radio communication failure, and transmitter case opening sabotage protection signaling (when used with selected transmitters). The CH20HR receiver is compatible with all Elmes Electronic 434MHz band transmitters.
Application examples:
• Dedicated wireless alarm control panel armed/disarmed by UMB100H hand transmitter programmed to channel 1.
• Monitoring alarm signals from Elmes Electronic wireless transmitters such as CTX, PTX, GBX, and RP501.
• Used as a calling and wireless panic button control panel in systems where many users have AN200H hand transmitters as personal wireless panic buttons. Any activated AN200H transmitter will generate an alarm state in the receiver, lasting until reset by the large red button on the receiver's front panel. Two-channel hand transmitters used as wireless panic buttons may have one button for quiet calling and the other for panic alarm function.
• Functions as a standard alarm system receiver, monitoring alarm, tamper, and low battery signals from Elmes Electronic code hopping wireless equipment, switching respective alarm zones on/off in the main system control panel.
| Operating frequency band | 433.92 MHz, superheterodyne |
| Compatibility | Works with any ELMES 433.92 MHz transmitters |
| Relay outputs | 20 NO/NC relay outputs, programmable for pulse or on/off modes |
| Front panel indication | LEDs for each output |
| Communication failure warning | Yes |
| Radio jamming sabotage warning | Yes |
| Transmitter low battery monitoring | Yes |
| Power supply | 12V DC ±15%, 35 mA standby, 25 mA per active relay |
| Relay output rating | 1A/24V or 0.5A/125V per relay |
| Relay hold time | Adjustable from 0.5 seconds to 4 hours |
| Tamper protection | Yes, with terminals |
| Operating temperature range | -20°C to +40°C |
| Dimensions (L/W/H) | 129/95/25 mm |
Additional options for all Elmes Electronic receivers and transmitters:
| Additional memory for up to 112 transmitters per channel | Option -112 | Allows each channel to register up to 112 keyfobs instead of the standard 12 |
| Additional 24V DC power supply | Option -12/24 | Allows powering the receiver from 12-24V DC |
| Superheterodyne receiver/kit instead of standard | Option -het | Replaces the standard receiver with a superheterodyne type, reducing signal loss (relevant for CH4HR) |
CH20HR - manual (PDF)
Declaration of conformity (PDF)
Catalogue Card (PDF)