I'm using DAQLOGGER and an old recorder. Can I connect the SMARTDAC+ GM10 to DAQLOGGER?

No.
Consider the GA10 Data Logging Software.
The GA10 can connect with DAQLOGGER.
For details, see GA10 General Specifications (GS 04L65B01-01EN) "Connectable Devices and Software".

Modular GM10

For industrial and lab applications, the GM10 offers Bluetooth wireless connection and modular I/O that offers accurate and reliable measurements. The GM10 also supports 920 MHz band wireless communication.
VA500

Model Name: VA500
VA510

Model Name: VA510
VA510/MLT

Model Name: VA510/MLT
VA511

Model Name: VA511
VA520

Model Name: VA520
WX101 DAQLOGGER

Model : WX101
WX81 DAQLOGGER Client

Model : WX81