SMM-A2 Acoustic Microphone
The cabled SMM-A2 acoustic microphone is the cabled version of the SM4's built in microphones. As with the recorder's built-in microphones, this mic creates higher quality recordings than those from all previous Song Meter microphones models. The microphone is weatherproof and comes with a 3-meter cable. It can also be deployed up to 100 meters away from the recorder.
SMM-A1 Acoustic Microphone
For legacy projects that require year-to-year microphone performance continuity, the SMM-A1 microphone can be used in place of the more advanced SMM-A2, listed above.
The SM4 recorder can also be used with an available hydrophone, the SM3/SM4 Hydrophone, for making underwater recordings. The hydrophone ships on a 20 meter cable and attaches to the same connectors as the cabled microphones.
SM3/SM4 Power Cable
The SM3/SM4 Power Cable allows the SM4 to run on external battery power or a complete solar panel charging system. Simply plug the cable into the recorder's power connector and connect the other end to the battery system using the included spade or ring terminals. The SM4 will handle external power sources from 4.5 to 17V DC and is protected against accidental reverse voltage.
This lock will ensure your recorder's cover is secured. The unit features a brass body and cylinder to provide extra resistance to the elements. The marine grade lock is keyed alike, allowing multiple locks to open with the same key.
Weather Resistant Cable Lock
The adjustable locking mechanism holds the 6'/1.8m cable tight in any position for a secure fit. The unit features a weather resistant lock and vinyl coated 5/16"/8mm braided steel cable. Note: Lock is keyed differently.
Made of indestructible steel and coated in a durable powder epoxy finish, this custom-designed case is the best solution for preventing prying teeth and claws from damaging your SM4. It provides visibility of the unit's LED light and also protects the unit's cable and power connections.
Song Meter SM4 GPS Option
For researchers who have large geographic areas to cover, the GPS option is a valuable, time-saving tool. When deploying multiple recorders, use a single GPS accessory to set and synchronize the date, time and location settings on/between each of your recorders.
Song Meter Surge Suppressor
The Song Meter Surge Suppressor protects SM4/SM4BAT recorders from power surges that could harm your recorders. This accessory should be used wherever microphones are mounted at elevation. Combine the Surge Suppressor with the SMM-U2 Grounding Bracket for added protection.
The suppressor is also compatible with the SM3 and SM3BAT.