For emergency after hours technical support, call +1 (716) 926-8243 to reach our 24 / 7 technical assistance hotline. Larson Davis provides factory based support services Monday through Friday between 8 am and 7 pm EST (GMT+5), excluding holidays. 

After hours hotline support is provided by an individual who is not in the office and may be driving, on the phone, or otherwise not immediately available. If you do not receive an immediate answer, please leave a message or call back later.

Because the after-hours hotline is staffed by someone who is out of the office, services are limited to technical questions. Other services such as price, quote, or RMA requests are not available. For these services please send an email to sales@larsondavis.com or call during normal office hours. For technical support, please email ldsupport@pcb.com.